Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

10 files changed, 1635 insertions, 0 deletions

diff --git a/src/spdk/scripts/perf/nvme/README b/src/spdk/scripts/perf/nvme/README
new file mode 100644
index 000000000..6468399a7
--- /dev/null
+++ b/src/spdk/scripts/perf/nvme/README
@@ -0,0 +1,12 @@
+These scripts are used to perform benchmark testing with fio.
+The run_fio_test.py is the main script that runs the performance test and parses the test results.
+Users can populate test parameters for different fio workloads in the lists (q_depth, io_size, workload_type, mix, core_mask and run_time) at the top of the run_fio_test.py script.
+The run_fio_test.py puts the test results in a csv file named <hostname>_<num ssds>_perf_output.csv.
+The run_fio_test.sh script demonstrates how to invoke the run_fio_test.py script with the
+input parameters: path_to_fio_conf, path_to_ioengine and num_ssds. The run_fio_test.sh script will
+call the SPDK setup.sh script to unbind NVMe devices from the kernel driver and bind them to the uio driver.
+We include a sample fio configuration file that includes the parameters we use in our test environment.
+The run_fio_test.py will append the NVMe devices to the end of the configuration file. The number of
+NVMe devices used is specified using the num_ssds parameter.
+
+Usage: ./run_fio_test.sh
diff --git a/src/spdk/scripts/perf/nvme/fio_test.conf b/src/spdk/scripts/perf/nvme/fio_test.conf
new file mode 100644
index 000000000..a03c6a1e9
--- /dev/null
+++ b/src/spdk/scripts/perf/nvme/fio_test.conf
@@ -0,0 +1,20 @@
+[global]
+ioengine=${IOENGINE}
+thread=1
+group_reporting=1
+direct=1
+verify=0
+norandommap=1
+cpumask=1
+percentile_list=50:90:99:99.5:99.9:99.99:99.999
+
+[perf_test]
+stonewall
+description="Run NVMe driver performance test for a given workload"
+bs=${BLK_SIZE}
+rw=${RW}
+rwmixread=${MIX}
+iodepth=${IODEPTH}
+time_based=1
+ramp_time=10s
+runtime=${RUNTIME}
diff --git a/src/spdk/scripts/perf/nvme/run_fio_test.py b/src/spdk/scripts/perf/nvme/run_fio_test.py
new file mode 100755
index 000000000..79d9e566d
--- /dev/null
+++ b/src/spdk/scripts/perf/nvme/run_fio_test.py
@@ -0,0 +1,166 @@
+#!/usr/bin/env python3
+
+# This script runs fio benchmark test on the local nvme device using the SPDK NVMe driver.
+# Prework: Run script/setup.sh to bind SSDs to SPDK driver.
+# Prework: Change any fio configurations in the template fio config file fio_test.conf
+# Output: A csv file <hostname>_<num ssds>_perf_output.csv
+
+import subprocess
+from subprocess import check_call, call, check_output, Popen, PIPE
+import random
+import os
+import sys
+import re
+import signal
+import getopt
+from datetime import datetime
+from itertools import *
+import csv
+import itertools
+from shutil import copyfile
+import json
+
+# Populate test parameters into these lists to run different workloads
+# The configuration below runs QD 1 & 128. To add QD 32 set q_depth=['1', '32', '128']
+q_depth = ['1', '128']
+# io_size specifies the size in bytes of the IO workload.
+# To add 64K IOs set io_size = ['4096', '65536']
+io_size = ['4096']
+workload_type = ['randrw']
+mix = ['100']
+core_mask = ['0x1']
+# run_time parameter specifies how long to run each test.
+# Set run_time = ['600'] to run the test for 10 minutes
+run_time = ['60']
+# iter_num parameter is used to run the test multiple times.
+# set iter_num = ['1', '2', '3'] to repeat each test 3 times
+iter_num = ['1']
+
+
+def run_fio(io_size_bytes, qd, rw_mix, cpu_mask, run_num, workload, run_time_sec):
+    print("Running Test: IO Size={} QD={} Mix={} CPU Mask={}".format(io_size_bytes, qd, rw_mix, cpu_mask))
+    string = "s_" + str(io_size_bytes) + "_q_" + str(qd) + "_m_" + str(rw_mix) + "_c_" + str(cpu_mask) + "_run_" + str(run_num)
+
+    # Call fio
+    path_to_fio_conf = config_file_for_test
+    path_to_ioengine = sys.argv[2]
+    command = "BLK_SIZE=" + str(io_size_bytes) + " RW=" + str(workload) + " MIX=" + str(rw_mix) \
+        + " IODEPTH=" + str(qd) + " RUNTIME=" + str(run_time_sec) + " IOENGINE=" + path_to_ioengine \
+        + " fio " + str(path_to_fio_conf) + " -output=" + string + " -output-format=json"
+    output = subprocess.check_output(command, shell=True)
+
+    print("Finished Test: IO Size={} QD={} Mix={} CPU Mask={}".format(io_size_bytes, qd, rw_mix, cpu_mask))
+    return
+
+
+def parse_results(io_size_bytes, qd, rw_mix, cpu_mask, run_num, workload, run_time_sec):
+    results_array = []
+
+    # If json file has results for multiple fio jobs pick the results from the right job
+    job_pos = 0
+
+    # generate the next result line that will be added to the output csv file
+    results = str(io_size_bytes) + "," + str(qd) + "," + str(rw_mix) + "," \
+        + str(workload) + "," + str(cpu_mask) + "," + str(run_time_sec) + "," + str(run_num)
+
+    # Read the results of this run from the test result file
+    string = "s_" + str(io_size_bytes) + "_q_" + str(qd) + "_m_" + str(rw_mix) + "_c_" + str(cpu_mask) + "_run_" + str(run_num)
+    with open(string) as json_file:
+        data = json.load(json_file)
+        job_name = data['jobs'][job_pos]['jobname']
+        # print "FIO job name: ", job_name
+        if 'lat_ns' in data['jobs'][job_pos]['read']:
+            lat = 'lat_ns'
+            lat_units = 'ns'
+        else:
+            lat = 'lat'
+            lat_units = 'us'
+        read_iops = float(data['jobs'][job_pos]['read']['iops'])
+        read_bw = float(data['jobs'][job_pos]['read']['bw'])
+        read_avg_lat = float(data['jobs'][job_pos]['read'][lat]['mean'])
+        read_min_lat = float(data['jobs'][job_pos]['read'][lat]['min'])
+        read_max_lat = float(data['jobs'][job_pos]['read'][lat]['max'])
+        write_iops = float(data['jobs'][job_pos]['write']['iops'])
+        write_bw = float(data['jobs'][job_pos]['write']['bw'])
+        write_avg_lat = float(data['jobs'][job_pos]['write'][lat]['mean'])
+        write_min_lat = float(data['jobs'][job_pos]['write'][lat]['min'])
+        write_max_lat = float(data['jobs'][job_pos]['write'][lat]['max'])
+        print("%-10s" % "IO Size", "%-10s" % "QD", "%-10s" % "Mix",
+              "%-10s" % "Workload Type", "%-10s" % "CPU Mask",
+              "%-10s" % "Run Time", "%-10s" % "Run Num",
+              "%-15s" % "Read IOps",
+              "%-10s" % "Read MBps", "%-15s" % "Read Avg. Lat(" + lat_units + ")",
+              "%-15s" % "Read Min. Lat(" + lat_units + ")", "%-15s" % "Read Max. Lat(" + lat_units + ")",
+              "%-15s" % "Write IOps",
+              "%-10s" % "Write MBps", "%-15s" % "Write Avg. Lat(" + lat_units + ")",
+              "%-15s" % "Write Min. Lat(" + lat_units + ")", "%-15s" % "Write Max. Lat(" + lat_units + ")")
+        print("%-10s" % io_size_bytes, "%-10s" % qd, "%-10s" % rw_mix,
+              "%-10s" % workload, "%-10s" % cpu_mask, "%-10s" % run_time_sec,
+              "%-10s" % run_num, "%-15s" % read_iops, "%-10s" % read_bw,
+              "%-15s" % read_avg_lat, "%-15s" % read_min_lat, "%-15s" % read_max_lat,
+              "%-15s" % write_iops, "%-10s" % write_bw, "%-15s" % write_avg_lat,
+              "%-15s" % write_min_lat, "%-15s" % write_max_lat)
+        results = results + "," + str(read_iops) + "," + str(read_bw) + "," \
+            + str(read_avg_lat) + "," + str(read_min_lat) + "," + str(read_max_lat) \
+            + "," + str(write_iops) + "," + str(write_bw) + "," + str(write_avg_lat) \
+            + "," + str(write_min_lat) + "," + str(write_max_lat)
+        with open(result_file_name, "a") as result_file:
+            result_file.write(results + "\n")
+        results_array = []
+    return
+
+
+def get_nvme_devices_count():
+    output = check_output('lspci | grep -i Non | wc -l', shell=True)
+    return int(output)
+
+
+def get_nvme_devices_bdf():
+    output = check_output('lspci | grep -i Non | awk \'{print $1}\'', shell=True).decode("utf-8")
+    output = output.split()
+    return output
+
+
+def add_filename_to_conf(conf_file_name, bdf):
+    filestring = "filename=trtype=PCIe traddr=0000." + bdf.replace(":", ".") + " ns=1"
+    with open(conf_file_name, "a") as conf_file:
+        conf_file.write(filestring + "\n")
+
+
+if len(sys.argv) != 4:
+    print("usage: " % sys.argv[0] % " path_to_fio_conf path_to_ioengine num_ssds")
+    sys.exit()
+
+num_ssds = int(sys.argv[3])
+if num_ssds > get_nvme_devices_count():
+    print("System does not have {} NVMe SSDs.".format(num_ssds))
+    sys.exit()
+
+host_name = os.uname()[1]
+result_file_name = host_name + "_" + sys.argv[3] + "ssds_perf_output.csv"
+
+bdf = get_nvme_devices_bdf()
+config_file_for_test = sys.argv[1] + "_" + sys.argv[3] + "ssds"
+copyfile(sys.argv[1], config_file_for_test)
+
+# Add the number of threads to the fio config file
+with open(config_file_for_test, "a") as conf_file:
+    conf_file.write("numjobs=" + str(1) + "\n")
+
+# Add the NVMe bdf to the fio config file
+for i in range(0, num_ssds):
+    add_filename_to_conf(config_file_for_test, bdf[i])
+
+# Set up for output
+columns = "IO_Size,Q_Depth,Workload_Mix,Workload_Type,Core_Mask,Run_Time,Run,Read_IOPS,Read_bw(KiB/s), \
+    Read_Avg_lat(us),Read_Min_Lat(us),Read_Max_Lat(us),Write_IOPS,Write_bw(KiB/s),Write_Avg_lat(us), \
+    Write_Min_Lat(us),Write_Max_Lat(us)"
+
+with open(result_file_name, "w+") as result_file:
+    result_file.write(columns + "\n")
+
+for i, (s, q, m, w, c, t) in enumerate(itertools.product(io_size, q_depth, mix, workload_type, core_mask, run_time)):
+    run_fio(s, q, m, c, i, w, t)
+    parse_results(s, q, m, c, i, w, t)
+
+result_file.close()
diff --git a/src/spdk/scripts/perf/nvme/run_fio_test.sh b/src/spdk/scripts/perf/nvme/run_fio_test.sh
new file mode 100755
index 000000000..bc888d0f4
--- /dev/null
+++ b/src/spdk/scripts/perf/nvme/run_fio_test.sh
@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+
+testdir=$(readlink -f $(dirname $0))
+rootdir=$(readlink -f $testdir/../../..)
+
+# Bind devices to NVMe driver
+$rootdir/scripts/setup.sh
+
+# Run Performance Test with 1 SSD
+$testdir/run_fio_test.py $testdir/fio_test.conf $rootdir/build/fio/spdk_nvme 1
+
+# 2 SSDs test run
+$testdir/run_fio_test.py $testdir/fio_test.conf $rootdir/build/fio/spdk_nvme 2
+
+# 4 SSDs test run
+$testdir/run_fio_test.py $testdir/fio_test.conf $rootdir/build/fio/spdk_nvme 4
+
+# 8 SSDs test run
+$testdir/run_fio_test.py $testdir/fio_test.conf $rootdir/build/fio/spdk_nvme 8
diff --git a/src/spdk/scripts/perf/nvmf/README.md b/src/spdk/scripts/perf/nvmf/README.md
new file mode 100644
index 000000000..6cd65790e
--- /dev/null
+++ b/src/spdk/scripts/perf/nvmf/README.md
@@ -0,0 +1,159 @@
+## Running NVMe-OF Performace Testcases
+
+In order to reproduce test cases described in [SPDK NVMe-OF Performance Test Cases](https://ci.spdk.io/download/performance-reports/SPDK_nvmeof_perf_report_18.04.pdf) follow the following instructions.
+
+Currently RDMA NIC IP address assignment must be done manually before running the tests.
+
+# Prepare the configuration file
+
+Configure the target, initiators, and FIO workload in the json configuration file.
+
+## General
+
+Options which apply to both target and all initiator servers such as "password" and "username" fields.
+All servers are required to have the same user credentials for running the test.
+Test results can be found in /tmp/results directory.
+
+### transport
+
+Transport layer to use between Target and Initiator servers - rdma or tcp.
+
+## Target
+
+Configure the target server information.
+
+### nic_ips
+
+List of IP addresses othat will be used in this test..
+NVMe namespaces will be split between provided IP addresses.
+So for example providing 2 IP's with 16 NVMe drives present will result in each IP managing
+8 NVMe subystems.
+
+### mode
+
+"spdk" or "kernel" values allowed.
+
+### use_null_block
+
+Use null block device instead of present NVMe drives. Used for latency measurements as described
+in Test Case 3 of performance report.
+
+### num_cores
+
+List of CPU cores to assign for running SPDK NVMe-OF Target process. Can specify exact core numbers or ranges, eg:
+[0, 1, 10-15].
+
+### nvmet_bin
+
+Path to nvmetcli application executable. If not provided then system-wide package will be used
+by default. Not used if "mode" is set to "spdk".
+
+### num_shared_buffers
+
+Number of shared buffers to use when creating transport layer.
+
+## Initiator
+
+Describes initiator arguments. There can be more than one initiator section in the configuration file.
+For the sake of easier results parsing from multiple initiators please use only digits and letters
+in initiator section name.
+
+### ip
+
+Management IP address used for SSH communication with initiator server.
+
+### nic_ips
+
+List of target IP addresses to which the initiator should try to connect.
+
+### mode
+
+"spdk" or "kernel" values allowed.
+
+### cpus_allowed
+
+List of CPU cores to assign for running SPDK NVMe-OF initiator process.
+Can specify exact core numbers: 0,5
+or ranges: 10-15
+or binding to CPUs 0, 5, and 8 to 15: `cpus_allowed=0,5,8-15`.
+If not specified then will use num_cores option.
+If specified with num_cores then cpu_allowed parameter has higher priority than num_cores.
+
+### num_cores
+
+Applies only to SPDK initiator. Number of CPUs core to use for running FIO job.
+If not specified then by default each connected subsystem gets its own CPU core.
+
+### nvmecli_dir
+
+Path to directory with nvme-cli application. If not provided then system-wide package will be used
+by default. Not used if "mode" is set to "spdk".
+
+### fio_bin
+
+Path to the fio binary that will be used to compile SPDK and run the test.
+If not specified, then the script will use /usr/src/fio/fio as the default.
+
+### extra_params
+
+Space separated string with additional settings for "nvme connect" command
+other than -t, -s, -n and -a.
+
+## fio
+
+Fio job parameters.
+
+- bs: block size
+- qd: io depth - Per connected fio filename target
+- rw: workload mode
+- rwmixread: percentage of reads in readwrite workloads
+- run_time: time (in seconds) to run workload
+- ramp_time: time (in seconds) to run workload before statistics are gathered
+- run_num: how many times to run given workload in loop
+
+# Running Test
+
+Before running the test script use the setup.sh script to bind the devices you want to
+use in the test to the VFIO/UIO driver.
+Run the script on the NVMe-oF target system:
+
+    cd spdk
+    sudo PYTHONPATH=$PYTHONPATH:$PWD/scripts scripts/perf/nvmf/run_nvmf.py
+The script uses the config.json configuration file in the scripts/perf/nvmf directory by default. You can
+specify a different configuration file at runtime as shown below:
+sudo PYTHONPATH=$PYTHONPATH:$PWD/scripts scripts/perf/nvmf/run_nvmf.py /path/to/config file/json config file
+
+The script uses another spdk script (scripts/rpc.py) so we pass the path to rpc.py by setting the Python path
+as a runtime environment parameter.
+
+# Test Results
+
+When the test completes, you will find a csv file (nvmf_results.csv) containing the results in the target node
+directory /tmp/results.
+
+# Processor Counter Monitor (PCM)
+PCM Tools provides a number of command-line utilities for real-time monitoring.
+Before using PCM Tools in nvmf perf scripts it needs to be installed on Target machine.
+PCM source and instructions are available on https://github.com/opcm/pcm.
+To enable PCM in perf test you need to add Target setting in config.json file:
+```
+"pcm_settings": ["pcm_directory", "measure_cpu", "measure_memory", delay_time, measure_interval, sample_count]
+```
+example:
+```
+"pcm_settings": ["/tmp/pcm", true, true, 10, 1, 30]
+```
+Example above will run PCM measure for cpu and memory, with start delay 10s, sample every 1 second,
+and 30 samples for cpu measure. PCM memory do not support sample count.
+
+# Bandwidth monitor (bwm-ng)
+PCM Tools provides a number of command-line utilities for real-time monitoring.
+Before using bwm-ng in nvmf perf scripts it needs to be installed on Target machine.
+To enable bandwidth monitor in perf test you need to add Target setting in config.json file:
+```
+"bandwidth_settings": [bool, sample_count]
+```
+example:
+```
+"bandwidth_settings": [true, 30]
+```
diff --git a/src/spdk/scripts/perf/nvmf/common.py b/src/spdk/scripts/perf/nvmf/common.py
new file mode 100644
index 000000000..8c0d435f3
--- /dev/null
+++ b/src/spdk/scripts/perf/nvmf/common.py
@@ -0,0 +1,42 @@
+import os
+import re
+import json
+from itertools import product, chain
+from subprocess import check_output, Popen
+
+
+def get_used_numa_nodes():
+    used_numa_nodes = set()
+    for bdf in get_nvme_devices_bdf():
+        with open("/sys/bus/pci/devices/%s/numa_node" % bdf, "r") as numa_file:
+            output = numa_file.read()
+        used_numa_nodes.add(int(output))
+    return used_numa_nodes
+
+
+def get_nvme_devices_count():
+    output = get_nvme_devices_bdf()
+    return len(output)
+
+
+def get_nvme_devices_bdf():
+    print("Getting BDFs for NVMe section")
+    output = check_output("rootdir=$PWD; \
+                          source test/common/autotest_common.sh; \
+                          get_nvme_bdfs 01 08 02",
+                          executable="/bin/bash", shell=True)
+    output = [str(x, encoding="utf-8") for x in output.split()]
+    print("Done getting BDFs")
+    return output
+
+
+def get_nvme_devices():
+    print("Getting kernel NVMe names")
+    output = check_output("lsblk -o NAME -nlp", shell=True).decode(encoding="utf-8")
+    output = [x for x in output.split("\n") if "nvme" in x]
+    print("Done getting kernel NVMe names")
+    return output
+
+
+def nvmet_command(nvmet_bin, command):
+    return check_output("%s %s" % (nvmet_bin, command), shell=True).decode(encoding="utf-8")
diff --git a/src/spdk/scripts/perf/nvmf/config.json b/src/spdk/scripts/perf/nvmf/config.json
new file mode 100644
index 000000000..d8b16be93
--- /dev/null
+++ b/src/spdk/scripts/perf/nvmf/config.json
@@ -0,0 +1,37 @@
+{
+  "general": {
+    "username": "uname",
+    "password": "pass",
+    "transport": "transport_type"
+  },
+  "target": {
+    "nic_ips": ["192.0.1.1", "192.0.2.1"],
+    "mode": "spdk",
+    "use_null_block": false,
+    "nvmet_dir": "/path/to/nvmetcli",
+    "num_cores": "1",
+    "num_shared_buffers": 4096
+  },
+  "initiator1": {
+    "ip": "10.0.0.1",
+    "nic_ips": ["192.0.1.1"],
+    "mode": "spdk",
+    "nvmecli_dir": "/path/to/nvmecli",
+    "fio_dir": "/path/to/fio binary",
+    "extra_params": "Extra nvme connect params"
+  },
+  "initiator2": {
+    "ip": "10.0.0.2",
+    "nic_ips": ["192.0.2.1"],
+    "mode": "spdk"
+  },
+  "fio": {
+    "bs": ["4k"],
+    "qd": [128],
+    "rw": ["randrw"],
+    "rwmixread": 100,
+    "run_time": 5,
+    "ramp_time": 1,
+    "run_num": 3
+  }
+}
diff --git a/src/spdk/scripts/perf/nvmf/run_nvmf.py b/src/spdk/scripts/perf/nvmf/run_nvmf.py
new file mode 100755
index 000000000..05b94ec09
--- /dev/null
+++ b/src/spdk/scripts/perf/nvmf/run_nvmf.py
@@ -0,0 +1,941 @@
+#!/usr/bin/env python3
+
+import os
+import re
+import sys
+import json
+import paramiko
+import zipfile
+import threading
+import subprocess
+import itertools
+import time
+import uuid
+import rpc
+import rpc.client
+import pandas as pd
+from collections import OrderedDict
+from common import *
+
+
+class Server:
+    def __init__(self, name, username, password, mode, nic_ips, transport):
+        self.name = name
+        self.mode = mode
+        self.username = username
+        self.password = password
+        self.nic_ips = nic_ips
+        self.transport = transport.lower()
+
+        if not re.match("^[A-Za-z0-9]*$", name):
+            self.log_print("Please use a name which contains only letters or numbers")
+            sys.exit(1)
+
+    def log_print(self, msg):
+        print("[%s] %s" % (self.name, msg), flush=True)
+
+
+class Target(Server):
+    def __init__(self, name, username, password, mode, nic_ips, transport="rdma",
+                 use_null_block=False, sar_settings=None, pcm_settings=None,
+                 bandwidth_settings=None):
+
+        super(Target, self).__init__(name, username, password, mode, nic_ips, transport)
+        self.null_block = bool(use_null_block)
+        self.enable_sar = False
+        self.enable_pcm_memory = False
+        self.enable_pcm = False
+        self.enable_bandwidth = False
+
+        if sar_settings:
+            self.enable_sar, self.sar_delay, self.sar_interval, self.sar_count = sar_settings
+
+        if pcm_settings:
+            self.pcm_dir, self.enable_pcm, self.enable_pcm_memory, self.pcm_delay, self.pcm_interval, self.pcm_count = pcm_settings
+
+        if bandwidth_settings:
+            self.enable_bandwidth, self.bandwidth_count = bandwidth_settings
+
+        self.script_dir = os.path.dirname(os.path.abspath(sys.argv[0]))
+        self.spdk_dir = os.path.abspath(os.path.join(self.script_dir, "../../../"))
+
+    def zip_spdk_sources(self, spdk_dir, dest_file):
+        self.log_print("Zipping SPDK source directory")
+        fh = zipfile.ZipFile(dest_file, "w", zipfile.ZIP_DEFLATED)
+        for root, directories, files in os.walk(spdk_dir, followlinks=True):
+            for file in files:
+                fh.write(os.path.relpath(os.path.join(root, file)))
+        fh.close()
+        self.log_print("Done zipping")
+
+    def read_json_stats(self, file):
+        with open(file, "r") as json_data:
+            data = json.load(json_data)
+            job_pos = 0  # job_post = 0 because using aggregated results
+
+            # Check if latency is in nano or microseconds to choose correct dict key
+            def get_lat_unit(key_prefix, dict_section):
+                # key prefix - lat, clat or slat.
+                # dict section - portion of json containing latency bucket in question
+                # Return dict key to access the bucket and unit as string
+                for k, v in dict_section.items():
+                    if k.startswith(key_prefix):
+                        return k, k.split("_")[1]
+
+            read_iops = float(data["jobs"][job_pos]["read"]["iops"])
+            read_bw = float(data["jobs"][job_pos]["read"]["bw"])
+            lat_key, lat_unit = get_lat_unit("lat", data["jobs"][job_pos]["read"])
+            read_avg_lat = float(data["jobs"][job_pos]["read"][lat_key]["mean"])
+            read_min_lat = float(data["jobs"][job_pos]["read"][lat_key]["min"])
+            read_max_lat = float(data["jobs"][job_pos]["read"][lat_key]["max"])
+            clat_key, clat_unit = get_lat_unit("clat", data["jobs"][job_pos]["read"])
+            read_p99_lat = float(data["jobs"][job_pos]["read"][clat_key]["percentile"]["99.000000"])
+            read_p99_9_lat = float(data["jobs"][job_pos]["read"][clat_key]["percentile"]["99.900000"])
+            read_p99_99_lat = float(data["jobs"][job_pos]["read"][clat_key]["percentile"]["99.990000"])
+            read_p99_999_lat = float(data["jobs"][job_pos]["read"][clat_key]["percentile"]["99.999000"])
+
+            if "ns" in lat_unit:
+                read_avg_lat, read_min_lat, read_max_lat = [x / 1000 for x in [read_avg_lat, read_min_lat, read_max_lat]]
+            if "ns" in clat_unit:
+                read_p99_lat = read_p99_lat / 1000
+                read_p99_9_lat = read_p99_9_lat / 1000
+                read_p99_99_lat = read_p99_99_lat / 1000
+                read_p99_999_lat = read_p99_999_lat / 1000
+
+            write_iops = float(data["jobs"][job_pos]["write"]["iops"])
+            write_bw = float(data["jobs"][job_pos]["write"]["bw"])
+            lat_key, lat_unit = get_lat_unit("lat", data["jobs"][job_pos]["write"])
+            write_avg_lat = float(data["jobs"][job_pos]["write"][lat_key]["mean"])
+            write_min_lat = float(data["jobs"][job_pos]["write"][lat_key]["min"])
+            write_max_lat = float(data["jobs"][job_pos]["write"][lat_key]["max"])
+            clat_key, clat_unit = get_lat_unit("clat", data["jobs"][job_pos]["write"])
+            write_p99_lat = float(data["jobs"][job_pos]["write"][clat_key]["percentile"]["99.000000"])
+            write_p99_9_lat = float(data["jobs"][job_pos]["write"][clat_key]["percentile"]["99.900000"])
+            write_p99_99_lat = float(data["jobs"][job_pos]["write"][clat_key]["percentile"]["99.990000"])
+            write_p99_999_lat = float(data["jobs"][job_pos]["write"][clat_key]["percentile"]["99.999000"])
+
+            if "ns" in lat_unit:
+                write_avg_lat, write_min_lat, write_max_lat = [x / 1000 for x in [write_avg_lat, write_min_lat, write_max_lat]]
+            if "ns" in clat_unit:
+                write_p99_lat = write_p99_lat / 1000
+                write_p99_9_lat = write_p99_9_lat / 1000
+                write_p99_99_lat = write_p99_99_lat / 1000
+                write_p99_999_lat = write_p99_999_lat / 1000
+
+        return [read_iops, read_bw, read_avg_lat, read_min_lat, read_max_lat,
+                read_p99_lat, read_p99_9_lat, read_p99_99_lat, read_p99_999_lat,
+                write_iops, write_bw, write_avg_lat, write_min_lat, write_max_lat,
+                write_p99_lat, write_p99_9_lat, write_p99_99_lat, write_p99_999_lat]
+
+    def parse_results(self, results_dir, initiator_count=None, run_num=None):
+        files = os.listdir(results_dir)
+        fio_files = filter(lambda x: ".fio" in x, files)
+        json_files = [x for x in files if ".json" in x]
+
+        headers = ["read_iops", "read_bw", "read_avg_lat_us", "read_min_lat_us", "read_max_lat_us",
+                   "read_p99_lat_us", "read_p99.9_lat_us", "read_p99.99_lat_us", "read_p99.999_lat_us",
+                   "write_iops", "write_bw", "write_avg_lat_us", "write_min_lat_us", "write_max_lat_us",
+                   "write_p99_lat_us", "write_p99.9_lat_us", "write_p99.99_lat_us", "write_p99.999_lat_us"]
+
+        aggr_headers = ["iops", "bw", "avg_lat_us", "min_lat_us", "max_lat_us",
+                        "p99_lat_us", "p99.9_lat_us", "p99.99_lat_us", "p99.999_lat_us"]
+
+        header_line = ",".join(["Name", *headers])
+        aggr_header_line = ",".join(["Name", *aggr_headers])
+
+        # Create empty results file
+        csv_file = "nvmf_results.csv"
+        with open(os.path.join(results_dir, csv_file), "w") as fh:
+            fh.write(aggr_header_line + "\n")
+        rows = set()
+
+        for fio_config in fio_files:
+            self.log_print("Getting FIO stats for %s" % fio_config)
+            job_name, _ = os.path.splitext(fio_config)
+
+            # Look in the filename for rwmixread value. Function arguments do
+            # not have that information.
+            # TODO: Improve this function by directly using workload params instead
+            # of regexing through filenames.
+            if "read" in job_name:
+                rw_mixread = 1
+            elif "write" in job_name:
+                rw_mixread = 0
+            else:
+                rw_mixread = float(re.search(r"m_(\d+)", job_name).group(1)) / 100
+
+            # If "_CPU" exists in name - ignore it
+            # Initiators for the same job could have diffrent num_cores parameter
+            job_name = re.sub(r"_\d+CPU", "", job_name)
+            job_result_files = [x for x in json_files if job_name in x]
+            self.log_print("Matching result files for current fio config:")
+            for j in job_result_files:
+                self.log_print("\t %s" % j)
+
+            # There may have been more than 1 initiator used in test, need to check that
+            # Result files are created so that string after last "_" separator is server name
+            inits_names = set([os.path.splitext(x)[0].split("_")[-1] for x in job_result_files])
+            inits_avg_results = []
+            for i in inits_names:
+                self.log_print("\tGetting stats for initiator %s" % i)
+                # There may have been more than 1 test run for this job, calculate average results for initiator
+                i_results = [x for x in job_result_files if i in x]
+                i_results_filename = re.sub(r"run_\d+_", "", i_results[0].replace("json", "csv"))
+
+                separate_stats = []
+                for r in i_results:
+                    stats = self.read_json_stats(os.path.join(results_dir, r))
+                    separate_stats.append(stats)
+                    self.log_print(stats)
+
+                init_results = [sum(x) for x in zip(*separate_stats)]
+                init_results = [x / len(separate_stats) for x in init_results]
+                inits_avg_results.append(init_results)
+
+                self.log_print("\tAverage results for initiator %s" % i)
+                self.log_print(init_results)
+                with open(os.path.join(results_dir, i_results_filename), "w") as fh:
+                    fh.write(header_line + "\n")
+                    fh.write(",".join([job_name, *["{0:.3f}".format(x) for x in init_results]]) + "\n")
+
+            # Sum results of all initiators running this FIO job.
+            # Latency results are an average of latencies from accros all initiators.
+            inits_avg_results = [sum(x) for x in zip(*inits_avg_results)]
+            inits_avg_results = OrderedDict(zip(headers, inits_avg_results))
+            for key in inits_avg_results:
+                if "lat" in key:
+                    inits_avg_results[key] /= len(inits_names)
+
+            # Aggregate separate read/write values into common labels
+            # Take rw_mixread into consideration for mixed read/write workloads.
+            aggregate_results = OrderedDict()
+            for h in aggr_headers:
+                read_stat, write_stat = [float(value) for key, value in inits_avg_results.items() if h in key]
+                if "lat" in h:
+                    _ = rw_mixread * read_stat + (1 - rw_mixread) * write_stat
+                else:
+                    _ = read_stat + write_stat
+                aggregate_results[h] = "{0:.3f}".format(_)
+
+            rows.add(",".join([job_name, *aggregate_results.values()]))
+
+        # Save results to file
+        for row in rows:
+            with open(os.path.join(results_dir, csv_file), "a") as fh:
+                fh.write(row + "\n")
+        self.log_print("You can find the test results in the file %s" % os.path.join(results_dir, csv_file))
+
+    def measure_sar(self, results_dir, sar_file_name):
+        self.log_print("Waiting %d delay before measuring SAR stats" % self.sar_delay)
+        time.sleep(self.sar_delay)
+        out = subprocess.check_output("sar -P ALL %s %s" % (self.sar_interval, self.sar_count), shell=True).decode(encoding="utf-8")
+        with open(os.path.join(results_dir, sar_file_name), "w") as fh:
+            for line in out.split("\n"):
+                if "Average" in line and "CPU" in line:
+                    self.log_print("Summary CPU utilization from SAR:")
+                    self.log_print(line)
+                if "Average" in line and "all" in line:
+                    self.log_print(line)
+            fh.write(out)
+
+    def measure_pcm_memory(self, results_dir, pcm_file_name):
+        time.sleep(self.pcm_delay)
+        pcm_memory = subprocess.Popen("%s/pcm-memory.x %s -csv=%s/%s" % (self.pcm_dir, self.pcm_interval,
+                                      results_dir, pcm_file_name), shell=True)
+        time.sleep(self.pcm_count)
+        pcm_memory.kill()
+
+    def measure_pcm(self, results_dir, pcm_file_name):
+        time.sleep(self.pcm_delay)
+        subprocess.run("%s/pcm.x %s -i=%s -csv=%s/%s" % (self.pcm_dir, self.pcm_interval, self.pcm_count,
+                       results_dir, pcm_file_name), shell=True, check=True)
+        df = pd.read_csv(os.path.join(results_dir, pcm_file_name), header=[0, 1])
+        df = df.rename(columns=lambda x: re.sub(r'Unnamed:[\w\s]*$', '', x))
+        skt = df.loc[:, df.columns.get_level_values(1).isin({'UPI0', 'UPI1', 'UPI2'})]
+        skt_pcm_file_name = "_".join(["skt", pcm_file_name])
+        skt.to_csv(os.path.join(results_dir, skt_pcm_file_name), index=False)
+
+    def measure_bandwidth(self, results_dir, bandwidth_file_name):
+        bwm = subprocess.run("bwm-ng -o csv -F %s/%s -a 1 -t 1000 -c %s" % (results_dir, bandwidth_file_name,
+                             self.bandwidth_count), shell=True, check=True)
+
+
+class Initiator(Server):
+    def __init__(self, name, username, password, mode, nic_ips, ip, transport="rdma", cpu_frequency=None,
+                 nvmecli_bin="nvme", workspace="/tmp/spdk", cpus_allowed=None,
+                 cpus_allowed_policy="shared", fio_bin="/usr/src/fio/fio"):
+
+        super(Initiator, self).__init__(name, username, password, mode, nic_ips, transport)
+
+        self.ip = ip
+        self.spdk_dir = workspace
+        if os.getenv('SPDK_WORKSPACE'):
+            self.spdk_dir = os.getenv('SPDK_WORKSPACE')
+        self.fio_bin = fio_bin
+        self.cpus_allowed = cpus_allowed
+        self.cpus_allowed_policy = cpus_allowed_policy
+        self.cpu_frequency = cpu_frequency
+        self.nvmecli_bin = nvmecli_bin
+        self.ssh_connection = paramiko.SSHClient()
+        self.ssh_connection.set_missing_host_key_policy(paramiko.AutoAddPolicy())
+        self.ssh_connection.connect(self.ip, username=self.username, password=self.password)
+        self.remote_call("sudo rm -rf %s/nvmf_perf" % self.spdk_dir)
+        self.remote_call("mkdir -p %s" % self.spdk_dir)
+        self.set_cpu_frequency()
+
+    def __del__(self):
+        self.ssh_connection.close()
+
+    def put_file(self, local, remote_dest):
+        ftp = self.ssh_connection.open_sftp()
+        ftp.put(local, remote_dest)
+        ftp.close()
+
+    def get_file(self, remote, local_dest):
+        ftp = self.ssh_connection.open_sftp()
+        ftp.get(remote, local_dest)
+        ftp.close()
+
+    def remote_call(self, cmd):
+        stdin, stdout, stderr = self.ssh_connection.exec_command(cmd)
+        out = stdout.read().decode(encoding="utf-8")
+        err = stderr.read().decode(encoding="utf-8")
+        return out, err
+
+    def copy_result_files(self, dest_dir):
+        self.log_print("Copying results")
+
+        if not os.path.exists(dest_dir):
+            os.mkdir(dest_dir)
+
+        # Get list of result files from initiator and copy them back to target
+        stdout, stderr = self.remote_call("ls %s/nvmf_perf" % self.spdk_dir)
+        file_list = stdout.strip().split("\n")
+
+        for file in file_list:
+            self.get_file(os.path.join(self.spdk_dir, "nvmf_perf", file),
+                          os.path.join(dest_dir, file))
+        self.log_print("Done copying results")
+
+    def discover_subsystems(self, address_list, subsys_no):
+        num_nvmes = range(0, subsys_no)
+        nvme_discover_output = ""
+        for ip, subsys_no in itertools.product(address_list, num_nvmes):
+            self.log_print("Trying to discover: %s:%s" % (ip, 4420 + subsys_no))
+            nvme_discover_cmd = ["sudo",
+                                 "%s" % self.nvmecli_bin,
+                                 "discover", "-t %s" % self.transport,
+                                 "-s %s" % (4420 + subsys_no),
+                                 "-a %s" % ip]
+            nvme_discover_cmd = " ".join(nvme_discover_cmd)
+
+            stdout, stderr = self.remote_call(nvme_discover_cmd)
+            if stdout:
+                nvme_discover_output = nvme_discover_output + stdout
+
+        subsystems = re.findall(r'trsvcid:\s(\d+)\s+'  # get svcid number
+                                r'subnqn:\s+([a-zA-Z0-9\.\-\:]+)\s+'  # get NQN id
+                                r'traddr:\s+(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})',  # get IP address
+                                nvme_discover_output)  # from nvme discovery output
+        subsystems = filter(lambda x: x[-1] in address_list, subsystems)
+        subsystems = list(set(subsystems))
+        subsystems.sort(key=lambda x: x[1])
+        self.log_print("Found matching subsystems on target side:")
+        for s in subsystems:
+            self.log_print(s)
+
+        return subsystems
+
+    def gen_fio_config(self, rw, rwmixread, block_size, io_depth, subsys_no, num_jobs=None, ramp_time=0, run_time=10):
+        fio_conf_template = """
+[global]
+ioengine={ioengine}
+{spdk_conf}
+thread=1
+group_reporting=1
+direct=1
+percentile_list=50:90:99:99.5:99.9:99.99:99.999
+
+norandommap=1
+rw={rw}
+rwmixread={rwmixread}
+bs={block_size}
+time_based=1
+ramp_time={ramp_time}
+runtime={run_time}
+"""
+        if "spdk" in self.mode:
+            subsystems = self.discover_subsystems(self.nic_ips, subsys_no)
+            bdev_conf = self.gen_spdk_bdev_conf(subsystems)
+            self.remote_call("echo '%s' > %s/bdev.conf" % (bdev_conf, self.spdk_dir))
+            ioengine = "%s/build/fio/spdk_bdev" % self.spdk_dir
+            spdk_conf = "spdk_conf=%s/bdev.conf" % self.spdk_dir
+        else:
+            ioengine = "libaio"
+            spdk_conf = ""
+            out, err = self.remote_call("sudo nvme list | grep -E 'SPDK|Linux' | awk '{print $1}'")
+            subsystems = [x for x in out.split("\n") if "nvme" in x]
+
+        if self.cpus_allowed is not None:
+            self.log_print("Limiting FIO workload execution on specific cores %s" % self.cpus_allowed)
+            cpus_num = 0
+            cpus = self.cpus_allowed.split(",")
+            for cpu in cpus:
+                if "-" in cpu:
+                    a, b = cpu.split("-")
+                    a = int(a)
+                    b = int(b)
+                    cpus_num += len(range(a, b))
+                else:
+                    cpus_num += 1
+            threads = range(0, cpus_num)
+        elif hasattr(self, 'num_cores'):
+            self.log_print("Limiting FIO workload execution to %s cores" % self.num_cores)
+            threads = range(0, int(self.num_cores))
+        else:
+            threads = range(0, len(subsystems))
+
+        if "spdk" in self.mode:
+            filename_section = self.gen_fio_filename_conf(subsystems, threads, io_depth, num_jobs)
+        else:
+            filename_section = self.gen_fio_filename_conf(threads, io_depth, num_jobs)
+
+        fio_config = fio_conf_template.format(ioengine=ioengine, spdk_conf=spdk_conf,
+                                              rw=rw, rwmixread=rwmixread, block_size=block_size,
+                                              ramp_time=ramp_time, run_time=run_time)
+        if num_jobs:
+            fio_config = fio_config + "numjobs=%s \n" % num_jobs
+        if self.cpus_allowed is not None:
+            fio_config = fio_config + "cpus_allowed=%s \n" % self.cpus_allowed
+            fio_config = fio_config + "cpus_allowed_policy=%s \n" % self.cpus_allowed_policy
+        fio_config = fio_config + filename_section
+
+        fio_config_filename = "%s_%s_%s_m_%s" % (block_size, io_depth, rw, rwmixread)
+        if hasattr(self, "num_cores"):
+            fio_config_filename += "_%sCPU" % self.num_cores
+        fio_config_filename += ".fio"
+
+        self.remote_call("mkdir -p %s/nvmf_perf" % self.spdk_dir)
+        self.remote_call("echo '%s' > %s/nvmf_perf/%s" % (fio_config, self.spdk_dir, fio_config_filename))
+        self.log_print("Created FIO Config:")
+        self.log_print(fio_config)
+
+        return os.path.join(self.spdk_dir, "nvmf_perf", fio_config_filename)
+
+    def set_cpu_frequency(self):
+        if self.cpu_frequency is not None:
+            try:
+                self.remote_call('sudo cpupower frequency-set -g userspace')
+                self.remote_call('sudo cpupower frequency-set -f %s' % self.cpu_frequency)
+                cmd = "sudo cpupower frequency-info"
+                output, error = self.remote_call(cmd)
+                self.log_print(output)
+                self.log_print(error)
+            except Exception:
+                self.log_print("ERROR: cpu_frequency will not work when intel_pstate is enabled!")
+                sys.exit()
+        else:
+            self.log_print("WARNING: you have disabled intel_pstate and using default cpu governance.")
+
+    def run_fio(self, fio_config_file, run_num=None):
+        job_name, _ = os.path.splitext(fio_config_file)
+        self.log_print("Starting FIO run for job: %s" % job_name)
+        self.log_print("Using FIO: %s" % self.fio_bin)
+
+        if run_num:
+            for i in range(1, run_num + 1):
+                output_filename = job_name + "_run_" + str(i) + "_" + self.name + ".json"
+                cmd = "sudo %s %s --output-format=json --output=%s" % (self.fio_bin, fio_config_file, output_filename)
+                output, error = self.remote_call(cmd)
+                self.log_print(output)
+                self.log_print(error)
+        else:
+            output_filename = job_name + "_" + self.name + ".json"
+            cmd = "sudo %s %s --output-format=json --output=%s" % (self.fio_bin, fio_config_file, output_filename)
+            output, error = self.remote_call(cmd)
+            self.log_print(output)
+            self.log_print(error)
+        self.log_print("FIO run finished. Results in: %s" % output_filename)
+
+
+class KernelTarget(Target):
+    def __init__(self, name, username, password, mode, nic_ips, transport="rdma",
+                 use_null_block=False, sar_settings=None, pcm_settings=None,
+                 bandwidth_settings=None, nvmet_bin="nvmetcli", **kwargs):
+
+        super(KernelTarget, self).__init__(name, username, password, mode, nic_ips, transport,
+                                           use_null_block, sar_settings, pcm_settings, bandwidth_settings)
+        self.nvmet_bin = nvmet_bin
+
+    def __del__(self):
+        nvmet_command(self.nvmet_bin, "clear")
+
+    def kernel_tgt_gen_nullblock_conf(self, address):
+        nvmet_cfg = {
+            "ports": [],
+            "hosts": [],
+            "subsystems": [],
+        }
+
+        nvmet_cfg["subsystems"].append({
+            "allowed_hosts": [],
+            "attr": {
+                "allow_any_host": "1",
+                "serial": "SPDK0001",
+                "version": "1.3"
+            },
+            "namespaces": [
+                {
+                    "device": {
+                        "path": "/dev/nullb0",
+                        "uuid": "%s" % uuid.uuid4()
+                    },
+                    "enable": 1,
+                    "nsid": 1
+                }
+            ],
+            "nqn": "nqn.2018-09.io.spdk:cnode1"
+        })
+
+        nvmet_cfg["ports"].append({
+            "addr": {
+                "adrfam": "ipv4",
+                "traddr": address,
+                "trsvcid": "4420",
+                "trtype": "%s" % self.transport,
+            },
+            "portid": 1,
+            "referrals": [],
+            "subsystems": ["nqn.2018-09.io.spdk:cnode1"]
+        })
+        with open("kernel.conf", 'w') as fh:
+            fh.write(json.dumps(nvmet_cfg, indent=2))
+
+    def kernel_tgt_gen_subsystem_conf(self, nvme_list, address_list):
+
+        nvmet_cfg = {
+            "ports": [],
+            "hosts": [],
+            "subsystems": [],
+        }
+
+        # Split disks between NIC IP's
+        disks_per_ip = int(len(nvme_list) / len(address_list))
+        disk_chunks = [nvme_list[i * disks_per_ip:disks_per_ip + disks_per_ip * i] for i in range(0, len(address_list))]
+
+        subsys_no = 1
+        port_no = 0
+        for ip, chunk in zip(address_list, disk_chunks):
+            for disk in chunk:
+                nvmet_cfg["subsystems"].append({
+                    "allowed_hosts": [],
+                    "attr": {
+                        "allow_any_host": "1",
+                        "serial": "SPDK00%s" % subsys_no,
+                        "version": "1.3"
+                    },
+                    "namespaces": [
+                        {
+                            "device": {
+                                "path": disk,
+                                "uuid": "%s" % uuid.uuid4()
+                            },
+                            "enable": 1,
+                            "nsid": subsys_no
+                        }
+                    ],
+                    "nqn": "nqn.2018-09.io.spdk:cnode%s" % subsys_no
+                })
+
+                nvmet_cfg["ports"].append({
+                    "addr": {
+                        "adrfam": "ipv4",
+                        "traddr": ip,
+                        "trsvcid": "%s" % (4420 + port_no),
+                        "trtype": "%s" % self.transport
+                    },
+                    "portid": subsys_no,
+                    "referrals": [],
+                    "subsystems": ["nqn.2018-09.io.spdk:cnode%s" % subsys_no]
+                })
+                subsys_no += 1
+                port_no += 1
+
+        with open("kernel.conf", "w") as fh:
+            fh.write(json.dumps(nvmet_cfg, indent=2))
+        pass
+
+    def tgt_start(self):
+        self.log_print("Configuring kernel NVMeOF Target")
+
+        if self.null_block:
+            print("Configuring with null block device.")
+            if len(self.nic_ips) > 1:
+                print("Testing with null block limited to single RDMA NIC.")
+                print("Please specify only 1 IP address.")
+                exit(1)
+            self.subsys_no = 1
+            self.kernel_tgt_gen_nullblock_conf(self.nic_ips[0])
+        else:
+            print("Configuring with NVMe drives.")
+            nvme_list = get_nvme_devices()
+            self.kernel_tgt_gen_subsystem_conf(nvme_list, self.nic_ips)
+            self.subsys_no = len(nvme_list)
+
+        nvmet_command(self.nvmet_bin, "clear")
+        nvmet_command(self.nvmet_bin, "restore kernel.conf")
+        self.log_print("Done configuring kernel NVMeOF Target")
+
+
+class SPDKTarget(Target):
+
+    def __init__(self, name, username, password, mode, nic_ips, transport="rdma",
+                 use_null_block=False, sar_settings=None, pcm_settings=None,
+                 bandwidth_settings=None, num_shared_buffers=4096, num_cores=1, **kwargs):
+
+        super(SPDKTarget, self).__init__(name, username, password, mode, nic_ips, transport,
+                                         use_null_block, sar_settings, pcm_settings, bandwidth_settings)
+        self.num_cores = num_cores
+        self.num_shared_buffers = num_shared_buffers
+
+    def spdk_tgt_configure(self):
+        self.log_print("Configuring SPDK NVMeOF target via RPC")
+        numa_list = get_used_numa_nodes()
+
+        # Create RDMA transport layer
+        rpc.nvmf.nvmf_create_transport(self.client, trtype=self.transport, num_shared_buffers=self.num_shared_buffers)
+        self.log_print("SPDK NVMeOF transport layer:")
+        rpc.client.print_dict(rpc.nvmf.nvmf_get_transports(self.client))
+
+        if self.null_block:
+            nvme_section = self.spdk_tgt_add_nullblock()
+            subsystems_section = self.spdk_tgt_add_subsystem_conf(self.nic_ips, req_num_disks=1)
+        else:
+            nvme_section = self.spdk_tgt_add_nvme_conf()
+            subsystems_section = self.spdk_tgt_add_subsystem_conf(self.nic_ips)
+        self.log_print("Done configuring SPDK NVMeOF Target")
+
+    def spdk_tgt_add_nullblock(self):
+        self.log_print("Adding null block bdev to config via RPC")
+        rpc.bdev.bdev_null_create(self.client, 102400, 4096, "Nvme0n1")
+        self.log_print("SPDK Bdevs configuration:")
+        rpc.client.print_dict(rpc.bdev.bdev_get_bdevs(self.client))
+
+    def spdk_tgt_add_nvme_conf(self, req_num_disks=None):
+        self.log_print("Adding NVMe bdevs to config via RPC")
+
+        bdfs = get_nvme_devices_bdf()
+        bdfs = [b.replace(":", ".") for b in bdfs]
+
+        if req_num_disks:
+            if req_num_disks > len(bdfs):
+                self.log_print("ERROR: Requested number of disks is more than available %s" % len(bdfs))
+                sys.exit(1)
+            else:
+                bdfs = bdfs[0:req_num_disks]
+
+        for i, bdf in enumerate(bdfs):
+            rpc.bdev.bdev_nvme_attach_controller(self.client, name="Nvme%s" % i, trtype="PCIe", traddr=bdf)
+
+        self.log_print("SPDK Bdevs configuration:")
+        rpc.client.print_dict(rpc.bdev.bdev_get_bdevs(self.client))
+
+    def spdk_tgt_add_subsystem_conf(self, ips=None, req_num_disks=None):
+        self.log_print("Adding subsystems to config")
+        if not req_num_disks:
+            req_num_disks = get_nvme_devices_count()
+
+        # Distribute bdevs between provided NICs
+        num_disks = range(0, req_num_disks)
+        if len(num_disks) == 1:
+            disks_per_ip = 1
+        else:
+            disks_per_ip = int(len(num_disks) / len(ips))
+        disk_chunks = [num_disks[i * disks_per_ip:disks_per_ip + disks_per_ip * i] for i in range(0, len(ips))]
+
+        # Create subsystems, add bdevs to namespaces, add listeners
+        for ip, chunk in zip(ips, disk_chunks):
+            for c in chunk:
+                nqn = "nqn.2018-09.io.spdk:cnode%s" % c
+                serial = "SPDK00%s" % c
+                bdev_name = "Nvme%sn1" % c
+                rpc.nvmf.nvmf_create_subsystem(self.client, nqn, serial,
+                                               allow_any_host=True, max_namespaces=8)
+                rpc.nvmf.nvmf_subsystem_add_ns(self.client, nqn, bdev_name)
+
+                rpc.nvmf.nvmf_subsystem_add_listener(self.client, nqn,
+                                                     trtype=self.transport,
+                                                     traddr=ip,
+                                                     trsvcid="4420",
+                                                     adrfam="ipv4")
+
+        self.log_print("SPDK NVMeOF subsystem configuration:")
+        rpc.client.print_dict(rpc.nvmf.nvmf_get_subsystems(self.client))
+
+    def tgt_start(self):
+        if self.null_block:
+            self.subsys_no = 1
+        else:
+            self.subsys_no = get_nvme_devices_count()
+        self.log_print("Starting SPDK NVMeOF Target process")
+        nvmf_app_path = os.path.join(self.spdk_dir, "build/bin/nvmf_tgt")
+        command = " ".join([nvmf_app_path, "-m", self.num_cores])
+        proc = subprocess.Popen(command, shell=True)
+        self.pid = os.path.join(self.spdk_dir, "nvmf.pid")
+
+        with open(self.pid, "w") as fh:
+            fh.write(str(proc.pid))
+        self.nvmf_proc = proc
+        self.log_print("SPDK NVMeOF Target PID=%s" % self.pid)
+        self.log_print("Waiting for spdk to initilize...")
+        while True:
+            if os.path.exists("/var/tmp/spdk.sock"):
+                break
+            time.sleep(1)
+        self.client = rpc.client.JSONRPCClient("/var/tmp/spdk.sock")
+
+        self.spdk_tgt_configure()
+
+    def __del__(self):
+        if hasattr(self, "nvmf_proc"):
+            try:
+                self.nvmf_proc.terminate()
+                self.nvmf_proc.wait()
+            except Exception as e:
+                self.log_print(e)
+                self.nvmf_proc.kill()
+                self.nvmf_proc.communicate()
+
+
+class KernelInitiator(Initiator):
+    def __init__(self, name, username, password, mode, nic_ips, ip, transport,
+                 cpus_allowed=None, cpus_allowed_policy="shared",
+                 cpu_frequency=None, fio_bin="/usr/src/fio/fio", **kwargs):
+
+        super(KernelInitiator, self).__init__(name, username, password, mode, nic_ips, ip, transport,
+                                              cpus_allowed=cpus_allowed, cpus_allowed_policy=cpus_allowed_policy,
+                                              cpu_frequency=cpu_frequency, fio_bin=fio_bin)
+
+        self.extra_params = ""
+        if kwargs["extra_params"]:
+            self.extra_params = kwargs["extra_params"]
+
+    def __del__(self):
+        self.ssh_connection.close()
+
+    def kernel_init_connect(self, address_list, subsys_no):
+        subsystems = self.discover_subsystems(address_list, subsys_no)
+        self.log_print("Below connection attempts may result in error messages, this is expected!")
+        for subsystem in subsystems:
+            self.log_print("Trying to connect %s %s %s" % subsystem)
+            self.remote_call("sudo %s connect -t %s -s %s -n %s -a %s %s" % (self.nvmecli_bin,
+                                                                             self.transport,
+                                                                             *subsystem,
+                                                                             self.extra_params))
+            time.sleep(2)
+
+    def kernel_init_disconnect(self, address_list, subsys_no):
+        subsystems = self.discover_subsystems(address_list, subsys_no)
+        for subsystem in subsystems:
+            self.remote_call("sudo %s disconnect -n %s" % (self.nvmecli_bin, subsystem[1]))
+            time.sleep(1)
+
+    def gen_fio_filename_conf(self, threads, io_depth, num_jobs=1):
+        out, err = self.remote_call("sudo nvme list | grep -E 'SPDK|Linux' | awk '{print $1}'")
+        nvme_list = [x for x in out.split("\n") if "nvme" in x]
+
+        filename_section = ""
+        nvme_per_split = int(len(nvme_list) / len(threads))
+        remainder = len(nvme_list) % len(threads)
+        iterator = iter(nvme_list)
+        result = []
+        for i in range(len(threads)):
+            result.append([])
+            for j in range(nvme_per_split):
+                result[i].append(next(iterator))
+                if remainder:
+                    result[i].append(next(iterator))
+                    remainder -= 1
+        for i, r in enumerate(result):
+            header = "[filename%s]" % i
+            disks = "\n".join(["filename=%s" % x for x in r])
+            job_section_qd = round((io_depth * len(r)) / num_jobs)
+            if job_section_qd == 0:
+                job_section_qd = 1
+            iodepth = "iodepth=%s" % job_section_qd
+            filename_section = "\n".join([filename_section, header, disks, iodepth])
+
+        return filename_section
+
+
+class SPDKInitiator(Initiator):
+    def __init__(self, name, username, password, mode, nic_ips, ip, transport="rdma",
+                 num_cores=1, cpus_allowed=None, cpus_allowed_policy="shared",
+                 cpu_frequency=None, fio_bin="/usr/src/fio/fio", **kwargs):
+        super(SPDKInitiator, self).__init__(name, username, password, mode, nic_ips, ip, transport,
+                                            cpus_allowed=cpus_allowed, cpus_allowed_policy=cpus_allowed_policy,
+                                            cpu_frequency=cpu_frequency, fio_bin=fio_bin)
+
+        self.num_cores = num_cores
+
+    def install_spdk(self, local_spdk_zip):
+        self.put_file(local_spdk_zip, "/tmp/spdk_drop.zip")
+        self.log_print("Copied sources zip from target")
+        self.remote_call("unzip -qo /tmp/spdk_drop.zip -d %s" % self.spdk_dir)
+
+        self.log_print("Sources unpacked")
+        self.log_print("Using fio binary %s" % self.fio_bin)
+        self.remote_call("cd %s; git submodule update --init; make clean; ./configure --with-rdma --with-fio=%s;"
+                         "make -j$(($(nproc)*2))" % (self.spdk_dir, os.path.dirname(self.fio_bin)))
+
+        self.log_print("SPDK built")
+        self.remote_call("sudo %s/scripts/setup.sh" % self.spdk_dir)
+
+    def gen_spdk_bdev_conf(self, remote_subsystem_list):
+        header = "[Nvme]"
+        row_template = """  TransportId "trtype:{transport} adrfam:IPv4 traddr:{ip} trsvcid:{svc} subnqn:{nqn}" Nvme{i}"""
+
+        bdev_rows = [row_template.format(transport=self.transport,
+                                         svc=x[0],
+                                         nqn=x[1],
+                                         ip=x[2],
+                                         i=i) for i, x in enumerate(remote_subsystem_list)]
+        bdev_rows = "\n".join(bdev_rows)
+        bdev_section = "\n".join([header, bdev_rows])
+        return bdev_section
+
+    def gen_fio_filename_conf(self, subsystems, threads, io_depth, num_jobs=1):
+        filename_section = ""
+        if len(threads) >= len(subsystems):
+            threads = range(0, len(subsystems))
+        filenames = ["Nvme%sn1" % x for x in range(0, len(subsystems))]
+        nvme_per_split = int(len(subsystems) / len(threads))
+        remainder = len(subsystems) % len(threads)
+        iterator = iter(filenames)
+        result = []
+        for i in range(len(threads)):
+            result.append([])
+            for j in range(nvme_per_split):
+                result[i].append(next(iterator))
+            if remainder:
+                result[i].append(next(iterator))
+                remainder -= 1
+        for i, r in enumerate(result):
+            header = "[filename%s]" % i
+            disks = "\n".join(["filename=%s" % x for x in r])
+            job_section_qd = round((io_depth * len(r)) / num_jobs)
+            if job_section_qd == 0:
+                job_section_qd = 1
+            iodepth = "iodepth=%s" % job_section_qd
+            filename_section = "\n".join([filename_section, header, disks, iodepth])
+
+        return filename_section
+
+
+if __name__ == "__main__":
+    spdk_zip_path = "/tmp/spdk.zip"
+    target_results_dir = "/tmp/results"
+
+    if (len(sys.argv) > 1):
+        config_file_path = sys.argv[1]
+    else:
+        script_full_dir = os.path.dirname(os.path.realpath(__file__))
+        config_file_path = os.path.join(script_full_dir, "config.json")
+
+    print("Using config file: %s" % config_file_path)
+    with open(config_file_path, "r") as config:
+        data = json.load(config)
+
+    initiators = []
+    fio_cases = []
+
+    for k, v in data.items():
+        if "target" in k:
+            if data[k]["mode"] == "spdk":
+                target_obj = SPDKTarget(name=k, **data["general"], **v)
+            elif data[k]["mode"] == "kernel":
+                target_obj = KernelTarget(name=k, **data["general"], **v)
+        elif "initiator" in k:
+            if data[k]["mode"] == "spdk":
+                init_obj = SPDKInitiator(name=k, **data["general"], **v)
+            elif data[k]["mode"] == "kernel":
+                init_obj = KernelInitiator(name=k, **data["general"], **v)
+            initiators.append(init_obj)
+        elif "fio" in k:
+            fio_workloads = itertools.product(data[k]["bs"],
+                                              data[k]["qd"],
+                                              data[k]["rw"])
+
+            fio_run_time = data[k]["run_time"]
+            fio_ramp_time = data[k]["ramp_time"]
+            fio_rw_mix_read = data[k]["rwmixread"]
+            fio_run_num = data[k]["run_num"] if "run_num" in data[k].keys() else None
+            fio_num_jobs = data[k]["num_jobs"] if "num_jobs" in data[k].keys() else None
+        else:
+            continue
+
+    # Copy and install SPDK on remote initiators
+    if "skip_spdk_install" not in data["general"]:
+        target_obj.zip_spdk_sources(target_obj.spdk_dir, spdk_zip_path)
+        threads = []
+        for i in initiators:
+            if i.mode == "spdk":
+                t = threading.Thread(target=i.install_spdk, args=(spdk_zip_path,))
+                threads.append(t)
+                t.start()
+        for t in threads:
+            t.join()
+
+    target_obj.tgt_start()
+
+    # Poor mans threading
+    # Run FIO tests
+    for block_size, io_depth, rw in fio_workloads:
+        threads = []
+        configs = []
+        for i in initiators:
+            if i.mode == "kernel":
+                i.kernel_init_connect(i.nic_ips, target_obj.subsys_no)
+
+            cfg = i.gen_fio_config(rw, fio_rw_mix_read, block_size, io_depth, target_obj.subsys_no,
+                                   fio_num_jobs, fio_ramp_time, fio_run_time)
+            configs.append(cfg)
+
+        for i, cfg in zip(initiators, configs):
+            t = threading.Thread(target=i.run_fio, args=(cfg, fio_run_num))
+            threads.append(t)
+        if target_obj.enable_sar:
+            sar_file_name = "_".join([str(block_size), str(rw), str(io_depth), "sar"])
+            sar_file_name = ".".join([sar_file_name, "txt"])
+            t = threading.Thread(target=target_obj.measure_sar, args=(target_results_dir, sar_file_name))
+            threads.append(t)
+
+        if target_obj.enable_pcm:
+            pcm_file_name = "_".join(["pcm_cpu", str(block_size), str(rw), str(io_depth)])
+            pcm_file_name = ".".join([pcm_file_name, "csv"])
+            t = threading.Thread(target=target_obj.measure_pcm, args=(target_results_dir, pcm_file_name,))
+            threads.append(t)
+
+        if target_obj.enable_pcm_memory:
+            pcm_file_name = "_".join(["pcm_memory", str(block_size), str(rw), str(io_depth)])
+            pcm_file_name = ".".join([pcm_file_name, "csv"])
+            t = threading.Thread(target=target_obj.measure_pcm_memory, args=(target_results_dir, pcm_file_name,))
+            threads.append(t)
+
+        if target_obj.enable_bandwidth:
+            bandwidth_file_name = "_".join(["bandwidth", str(block_size), str(rw), str(io_depth)])
+            bandwidth_file_name = ".".join([bandwidth_file_name, "csv"])
+            t = threading.Thread(target=target_obj.measure_bandwidth, args=(target_results_dir, bandwidth_file_name,))
+            threads.append(t)
+
+        for t in threads:
+            t.start()
+        for t in threads:
+            t.join()
+
+        for i in initiators:
+            if i.mode == "kernel":
+                i.kernel_init_disconnect(i.nic_ips, target_obj.subsys_no)
+            i.copy_result_files(target_results_dir)
+
+    target_obj.parse_results(target_results_dir)
diff --git a/src/spdk/scripts/perf/vhost/fio_test.conf b/src/spdk/scripts/perf/vhost/fio_test.conf
new file mode 100644
index 000000000..c480f1966
--- /dev/null
+++ b/src/spdk/scripts/perf/vhost/fio_test.conf
@@ -0,0 +1,20 @@
+[global]
+ioengine=libaio
+thread=1
+group_reporting=1
+direct=1
+verify=0
+norandommap=1
+
+[perf_test]
+stonewall
+description="Run NVMe driver performance test for a given workload"
+bs={blksize}
+rw={rw}
+rwmixread={rwmixread}
+iodepth={iodepth}
+time_based=1
+ramp_time={ramptime}
+runtime={runtime}
+numjobs={numjobs}
+filename=
diff --git a/src/spdk/scripts/perf/vhost/run_vhost_test.py b/src/spdk/scripts/perf/vhost/run_vhost_test.py
new file mode 100644
index 000000000..e6d86161f
--- /dev/null
+++ b/src/spdk/scripts/perf/vhost/run_vhost_test.py
@@ -0,0 +1,219 @@
+import os
+import sys
+import argparse
+import multiprocessing
+import subprocess
+from subprocess import check_call, call, check_output, Popen, PIPE
+
+
+def range_incl(a, b):
+    return list(range(a, b + 1))
+
+
+def list_spdk_used_cpus(cpus):
+    cpu_list = []
+    for chunk in cpus.split(","):
+        if "-" in chunk:
+            _ = chunk.split("-")
+            _ = list(map(int, _))
+            cpu_list.extend(list(range_incl(*_)))
+        else:
+            cpu_list.append(int(chunk))
+    return cpu_list
+
+
+def gen_cpu_mask_config(output_dir, spdk_cpu_list, vm_count, vm_cpu_num):
+    spdk = gen_spdk_cpu_mask_config(spdk_cpu_list)
+    qemu = gen_qemu_cpu_mask_config(spdk_cpu_list, vm_count, vm_cpu_num)
+    file_path = os.path.join(output_dir, "mask_config")
+    with open(file_path, "w") as fh:
+        fh.write("".join([spdk, qemu]))
+    return file_path
+
+
+def gen_spdk_cpu_mask_config(spdk_cpu_list):
+    cpus = "vhost_0_reactor_mask=[%s]" % (spdk_cpu_list)
+
+    # Go through assigned CPUs and use the lowest CPU index as
+    # default primary core
+    cpu_indexes = list_spdk_used_cpus(spdk_cpu_list)
+    cpu_indexes.sort()
+    print(cpu_indexes)
+
+    pr_core = "vhost_0_master_core=%s" % (cpu_indexes[0])
+    return "\n".join([cpus, pr_core, "\n"])
+
+
+def get_host_cpus():
+    cpu_num = multiprocessing.cpu_count()
+    cpu_list = list(range(0, cpu_num))
+    output = check_output("lscpu | grep 'per core'", shell=True)
+
+    # Assuming 2-socket server
+    if "2" in str(output):
+        ht_enabled = True
+        cpu_chunk = int(cpu_num/4)
+        numa0_cpus = cpu_list[0:cpu_chunk]
+        numa0_cpus.extend(cpu_list[2*cpu_chunk:3*cpu_chunk])
+        numa1_cpus = cpu_list[cpu_chunk:2*cpu_chunk]
+        numa1_cpus.extend(cpu_list[3*cpu_chunk:4*cpu_chunk])
+    else:
+        ht_enabled = False
+        cpu_chunk = int(cpu_num/2)
+        numa0_cpus = cpu_list[:cpu_chunk]
+        numa1_cpus = cpu_list[cpu_chunk:]
+    return [numa0_cpus, numa1_cpus]
+
+
+def gen_qemu_cpu_mask_config(spdk_cpu_list, vm_count, vm_cpu_num):
+    print("Creating masks for QEMU")
+    ret = ""
+
+    # Exclude SPDK cores from available CPU list
+    numa0_cpus, numa1_cpus = get_host_cpus()
+    spdk_cpus = list_spdk_used_cpus(spdk_cpu_list)
+    spdk_cpus.sort()
+
+    numa0_cpus = sorted(list(set(numa0_cpus) - set(spdk_cpus)))
+    numa1_cpus = sorted(list(set(numa1_cpus) - set(spdk_cpus)))
+
+    # Generate qemu cpu mask and numa param for VMs out of
+    # remaining free CPU cores.
+    # All CPUs assigned to a VM will come from the same NUMA node.
+    # Assuming 2 socket server.
+    used_numa = 0
+    available = numa0_cpus
+    for i in range(0, vm_count):
+        cpus = [str(x) for x in available[0:vm_cpu_num]]
+
+        # If there is not enough cores on first numa node for a VM
+        # then switch to next numa node
+        if len(cpus) < vm_cpu_num and used_numa == 0:
+            available = numa1_cpus
+            used_numa = 1
+            cpus = [str(x) for x in available[0:vm_cpu_num]]
+
+        # If not enough cores on second numa node - break and exit
+        if len(cpus) < vm_cpu_num and used_numa == 1:
+            print("There is not enough CPU Cores available on \
+            Numa node1 to create VM %s" % i)
+            break
+
+        cpus = ",".join(cpus)
+        cpus = "VM_%s_qemu_mask=%s" % (i, cpus)
+        numa = "VM_%s_qemu_numa_node=%s\n" % (i, used_numa)
+
+        # Remove used CPU cores from available list
+        available = available[vm_cpu_num:]
+        ret = "\n".join([ret, cpus, numa])
+
+    return ret
+
+
+def create_fio_cfg(template_dir, output_dir, **kwargs):
+    fio_tempalte = os.path.join(template_dir, "fio_test.conf")
+    with open("scripts/perf/vhost/fio_test.conf", "r") as fh:
+        cfg = fh.read()
+    cfg = cfg.format(**kwargs)
+
+    file_path = os.path.join(output_dir, "fio_job.cfg")
+    with open(file_path, "w") as fh:
+        fh.write(cfg)
+    return file_path
+
+
+script_dir = os.path.dirname(os.path.abspath(sys.argv[0]))
+parser = argparse.ArgumentParser()
+
+parser.add_argument('blksize', default="4k", type=str,
+                    help="Block size param for FIO. Default: 4k")
+parser.add_argument('iodepth', default="128", type=str,
+                    help="Iodepth param for FIO. Default: 128")
+parser.add_argument('rw', default="randread", type=str,
+                    help="RW param for FIO. Default: randread")
+parser.add_argument('-m', '--rwmixread', default="70", type=str,
+                    help="Percentage of reads in read-write mode. Default: 70")
+parser.add_argument('-n', '--numjobs', default="1", type=str,
+                    help="Numjobs value for FIO job. Default: 1")
+parser.add_argument('-r', '--runtime', default="10", type=str,
+                    help="Run time param for FIO (in seconds). Default: 10")
+parser.add_argument('-R', '--ramptime', default="10", type=str,
+                    help="Ramp time param for FIO (in seconds). Default: 10")
+parser.add_argument('-c', '--ctrl-type', default="spdk_vhost_scsi", type=str,
+                    help="Type of vhost controller to use in test.\
+                    Possible options: spdk_vhost_scsi, spdk_vhost_blk\
+                    Default: spdk_vhost_scsi")
+parser.add_argument('-s', '--split', default=False, type=bool,
+                    help="Use split vbdevs instead of logical volumes. Default: false")
+parser.add_argument('-d', '--max-disks', default=0, type=int,
+                    help="How many physical disks to use in test. Default: all disks.\
+                    Depending on the number of --vm-count disks may be split into\
+                    smaller logical bdevs (splits or logical volumes) so that\
+                    each virtual machine gets it's own bdev to work on.")
+parser.add_argument('-v', '--vm-count', default=1, type=int,
+                    help="How many VMs to run in test. Default: 1")
+parser.add_argument('-i', '--vm-image', default="$HOME/vhost_vm_image.qcow2",
+                    type=str, help="VM image to use for running VMs.")
+
+subparsers = parser.add_subparsers()
+cpu_cfg_create = subparsers.add_parser('create_cpu_cfg',
+                                       help="Generate a CPU config file for test.\
+                                       This option will attempt to automatically\
+                                       generate config file with SPDK/QEMU cpu lists.\
+                                       CPU cores on NUMA Node 0 will be used first\
+                                       (including logical cores when HT is enabled)\
+                                       and NUMA Node 1 will be used last.")
+cpu_cfg_create.add_argument('spdk_cpu_list', default=None,
+                            help="List of CPU cores to be used by SPDK vhost app.\
+                            Accepted format examples:\
+                            single cpus: 0,2,4\
+                            ranges (inclusive!): 0-2\
+                            mixed: 0,2-5,9")
+cpu_cfg_create.add_argument('vm_cpu_num', default=None, type=int)
+
+cpu_cfg_load = subparsers.add_parser('load_cpu_cfg',
+                                     help="Load and use a CPU config file for test\
+                                     Example configuration files can be found in:\
+                                     test/vhost/common/autotest.config")
+cpu_cfg_load.add_argument('custom_mask_file', default=None,
+                          help="Path to file with custom values for vhost's\
+                          reactor mask and master core, and each VM's qemu mask\
+                          and qemu numa node")
+
+args = parser.parse_args()
+fio_cfg_path = create_fio_cfg(script_dir, script_dir, **vars(args))
+
+cpu_cfg_arg = ""
+disk_arg = ""
+split_arg = ""
+if "spdk_cpu_list" in args:
+    cfg_path = gen_cpu_mask_config(script_dir, args.spdk_cpu_list, args.vm_count, args.vm_cpu_num)
+    cpu_cfg_arg = "--custom-cpu-cfg=%s" % cfg_path
+if "custom_mask_file" in args:
+    cpu_cfg_arg = "--custom-cpu-cfg=%s" % args.custom_mask_file
+if args.split is True:
+    split_arg = "--use-split"
+if args.max_disks > 0:
+    disk_arg = "--max-disks=%s" % args.max_disks
+
+
+command = " ".join(["test/vhost/perf_bench/vhost_perf.sh",
+                    "--vm-image=%s" % args.vm_image,
+                    "--vm-count=%s" % args.vm_count,
+                    "--ctrl-type=%s" % args.ctrl_type,
+                    "%s" % split_arg,
+                    "%s" % disk_arg,
+                    "--fio-job=%s" % fio_cfg_path,
+                    "%s" % cpu_cfg_arg])
+# TODO: Disabled for now.
+# Reason: initially this script was supposed to be a wrapper for .sh script and would
+# - generate FIO config
+# - generate SPDK/QEMU CPU mask configuration file
+# - run test script
+# Auto-generating CPU masks configuration needs some more work to be done
+# and increasing number of params makes .py script hard to use.
+# Will cleanup here soon.
+
+# print("INFO: Running perf test with command:")
+# print(command)
+# pr = check_output(command, shell=True)