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-rw-r--r--src/common/obj_bencher.cc1430
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diff --git a/src/common/obj_bencher.cc b/src/common/obj_bencher.cc
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index 000000000..e94fd7c3e
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+++ b/src/common/obj_bencher.cc
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2009 Sage Weil <sage@newdream.net>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ * Series of functions to test your rados installation. Notice
+ * that this code is not terribly robust -- for instance, if you
+ * try and bench on a pool you don't have permission to access
+ * it will just loop forever.
+ */
+#include "include/compat.h"
+#include <pthread.h>
+#include "common/ceph_mutex.h"
+#include "common/Clock.h"
+#include "obj_bencher.h"
+
+const std::string BENCH_LASTRUN_METADATA = "benchmark_last_metadata";
+const std::string BENCH_PREFIX = "benchmark_data";
+const std::string BENCH_OBJ_NAME = BENCH_PREFIX + "_%s_%d_object%d";
+
+static char cached_hostname[30] = {0};
+int cached_pid = 0;
+
+static std::string generate_object_prefix_nopid() {
+ if (cached_hostname[0] == 0) {
+ gethostname(cached_hostname, sizeof(cached_hostname)-1);
+ cached_hostname[sizeof(cached_hostname)-1] = 0;
+ }
+
+ std::ostringstream oss;
+ oss << BENCH_PREFIX << "_" << cached_hostname;
+ return oss.str();
+}
+
+static std::string generate_object_prefix(int pid = 0) {
+ if (pid)
+ cached_pid = pid;
+ else if (!cached_pid)
+ cached_pid = getpid();
+
+ std::ostringstream oss;
+ oss << generate_object_prefix_nopid() << "_" << cached_pid;
+ return oss.str();
+}
+
+// this is 8x faster than previous impl based on chained, deduped functions call
+static std::string generate_object_name_fast(int objnum, int pid = 0)
+{
+ if (cached_hostname[0] == 0) {
+ gethostname(cached_hostname, sizeof(cached_hostname)-1);
+ cached_hostname[sizeof(cached_hostname)-1] = 0;
+ }
+
+ if (pid)
+ cached_pid = pid;
+ else if (!cached_pid)
+ cached_pid = getpid();
+
+ char name[512];
+ int n = snprintf(&name[0], sizeof(name), BENCH_OBJ_NAME.c_str(), cached_hostname, cached_pid, objnum);
+ ceph_assert(n > 0 && n < (int)sizeof(name));
+ return std::string(&name[0], (size_t)n);
+}
+
+static void sanitize_object_contents (bench_data *data, size_t length) {
+ // FIPS zeroization audit 20191115: this memset is not security related.
+ memset(data->object_contents, 'z', length);
+}
+
+ostream& ObjBencher::out(ostream& os, utime_t& t)
+{
+ if (show_time)
+ return t.localtime(os) << " ";
+ else
+ return os;
+}
+
+ostream& ObjBencher::out(ostream& os)
+{
+ utime_t cur_time = ceph_clock_now();
+ return out(os, cur_time);
+}
+
+void *ObjBencher::status_printer(void *_bencher) {
+ ObjBencher *bencher = static_cast<ObjBencher *>(_bencher);
+ bench_data& data = bencher->data;
+ Formatter *formatter = bencher->formatter;
+ ostream *outstream = bencher->outstream;
+ ceph::condition_variable cond;
+ int i = 0;
+ int previous_writes = 0;
+ int cycleSinceChange = 0;
+ double bandwidth;
+ int iops = 0;
+ mono_clock::duration ONE_SECOND = std::chrono::seconds(1);
+ std::unique_lock locker{bencher->lock};
+ if (formatter)
+ formatter->open_array_section("datas");
+ while(!data.done) {
+ mono_time cur_time = mono_clock::now();
+ utime_t t = ceph_clock_now();
+
+ if (i % 20 == 0 && !formatter) {
+ if (i > 0)
+ t.localtime(cout)
+ << " min lat: " << data.min_latency
+ << " max lat: " << data.max_latency
+ << " avg lat: " << data.avg_latency << std::endl;
+ //I'm naughty and don't reset the fill
+ bencher->out(cout, t) << setfill(' ')
+ << setw(5) << "sec"
+ << setw(8) << "Cur ops"
+ << setw(10) << "started"
+ << setw(10) << "finished"
+ << setw(10) << "avg MB/s"
+ << setw(10) << "cur MB/s"
+ << setw(12) << "last lat(s)"
+ << setw(12) << "avg lat(s)" << std::endl;
+ }
+ if (cycleSinceChange)
+ bandwidth = (double)(data.finished - previous_writes)
+ * (data.op_size)
+ / (1024*1024)
+ / cycleSinceChange;
+ else
+ bandwidth = -1;
+
+ if (!std::isnan(bandwidth) && bandwidth > -1) {
+ if (bandwidth > data.idata.max_bandwidth)
+ data.idata.max_bandwidth = bandwidth;
+ if (bandwidth < data.idata.min_bandwidth)
+ data.idata.min_bandwidth = bandwidth;
+
+ ++data.idata.bandwidth_cycles;
+ double delta = bandwidth - data.idata.avg_bandwidth;
+ data.idata.avg_bandwidth += delta / data.idata.bandwidth_cycles;
+ data.idata.bandwidth_diff_sum += delta * (bandwidth - data.idata.avg_bandwidth);
+ }
+
+ if (cycleSinceChange)
+ iops = (double)(data.finished - previous_writes)
+ / cycleSinceChange;
+ else
+ iops = -1;
+
+ if (!std::isnan(iops) && iops > -1) {
+ if (iops > data.idata.max_iops)
+ data.idata.max_iops = iops;
+ if (iops < data.idata.min_iops)
+ data.idata.min_iops = iops;
+
+ ++data.idata.iops_cycles;
+ double delta = iops - data.idata.avg_iops;
+ data.idata.avg_iops += delta / data.idata.iops_cycles;
+ data.idata.iops_diff_sum += delta * (iops - data.idata.avg_iops);
+ }
+
+ if (formatter)
+ formatter->open_object_section("data");
+
+ // elapsed will be in seconds, by default
+ std::chrono::duration<double> elapsed = cur_time - data.start_time;
+ double avg_bandwidth = (double) (data.op_size) * (data.finished)
+ / elapsed.count() / (1024*1024);
+ if (previous_writes != data.finished) {
+ previous_writes = data.finished;
+ cycleSinceChange = 0;
+ if (!formatter) {
+ bencher->out(cout, t)
+ << setfill(' ')
+ << setw(5) << i
+ << ' ' << setw(7) << data.in_flight
+ << ' ' << setw(9) << data.started
+ << ' ' << setw(9) << data.finished
+ << ' ' << setw(9) << avg_bandwidth
+ << ' ' << setw(9) << bandwidth
+ << ' ' << setw(11) << (double)data.cur_latency.count()
+ << ' ' << setw(11) << data.avg_latency << std::endl;
+ } else {
+ formatter->dump_format("sec", "%d", i);
+ formatter->dump_format("cur_ops", "%d", data.in_flight);
+ formatter->dump_format("started", "%d", data.started);
+ formatter->dump_format("finished", "%d", data.finished);
+ formatter->dump_format("avg_bw", "%f", avg_bandwidth);
+ formatter->dump_format("cur_bw", "%f", bandwidth);
+ formatter->dump_format("last_lat", "%f", (double)data.cur_latency.count());
+ formatter->dump_format("avg_lat", "%f", data.avg_latency);
+ }
+ }
+ else {
+ if (!formatter) {
+ bencher->out(cout, t)
+ << setfill(' ')
+ << setw(5) << i
+ << ' ' << setw(7) << data.in_flight
+ << ' ' << setw(9) << data.started
+ << ' ' << setw(9) << data.finished
+ << ' ' << setw(9) << avg_bandwidth
+ << ' ' << setw(9) << '0'
+ << ' ' << setw(11) << '-'
+ << ' '<< setw(11) << data.avg_latency << std::endl;
+ } else {
+ formatter->dump_format("sec", "%d", i);
+ formatter->dump_format("cur_ops", "%d", data.in_flight);
+ formatter->dump_format("started", "%d", data.started);
+ formatter->dump_format("finished", "%d", data.finished);
+ formatter->dump_format("avg_bw", "%f", avg_bandwidth);
+ formatter->dump_format("cur_bw", "%f", 0);
+ formatter->dump_format("last_lat", "%f", 0);
+ formatter->dump_format("avg_lat", "%f", data.avg_latency);
+ }
+ }
+ if (formatter) {
+ formatter->close_section(); // data
+ formatter->flush(*outstream);
+ }
+ ++i;
+ ++cycleSinceChange;
+ cond.wait_for(locker, ONE_SECOND);
+ }
+ if (formatter)
+ formatter->close_section(); //datas
+ if (iops < 0) {
+ std::chrono::duration<double> runtime = mono_clock::now() - data.start_time;
+ data.idata.min_iops = data.idata.max_iops = data.finished / runtime.count();
+ }
+ return NULL;
+}
+
+int ObjBencher::aio_bench(
+ int operation, int secondsToRun,
+ int concurrentios,
+ uint64_t op_size, uint64_t object_size,
+ unsigned max_objects,
+ bool cleanup, bool hints,
+ const std::string& run_name, bool reuse_bench, bool no_verify) {
+
+ if (concurrentios <= 0)
+ return -EINVAL;
+
+ int num_ops = 0;
+ int num_objects = 0;
+ int r = 0;
+ int prev_pid = 0;
+ std::chrono::duration<double> timePassed;
+
+ // default metadata object is used if user does not specify one
+ const std::string run_name_meta = (run_name.empty() ? BENCH_LASTRUN_METADATA : run_name);
+
+ //get data from previous write run, if available
+ if (operation != OP_WRITE || reuse_bench) {
+ uint64_t prev_op_size, prev_object_size;
+ r = fetch_bench_metadata(run_name_meta, &prev_op_size, &prev_object_size,
+ &num_ops, &num_objects, &prev_pid);
+ if (r < 0) {
+ if (r == -ENOENT) {
+ if (reuse_bench)
+ cerr << "Must write data before using reuse_bench for a write benchmark!" << std::endl;
+ else
+ cerr << "Must write data before running a read benchmark!" << std::endl;
+ }
+ return r;
+ }
+ object_size = prev_object_size;
+ op_size = prev_op_size;
+ }
+
+ char* contentsChars = new char[op_size];
+ lock.lock();
+ data.done = false;
+ data.hints = hints;
+ data.object_size = object_size;
+ data.op_size = op_size;
+ data.in_flight = 0;
+ data.started = 0;
+ data.finished = 0;
+ data.min_latency = 9999.0; // this better be higher than initial latency!
+ data.max_latency = 0;
+ data.avg_latency = 0;
+ data.latency_diff_sum = 0;
+ data.object_contents = contentsChars;
+ lock.unlock();
+
+ //fill in contentsChars deterministically so we can check returns
+ sanitize_object_contents(&data, data.op_size);
+
+ if (formatter)
+ formatter->open_object_section("bench");
+
+ if (OP_WRITE == operation) {
+ r = write_bench(secondsToRun, concurrentios, run_name_meta, max_objects, prev_pid);
+ if (r != 0) goto out;
+ }
+ else if (OP_SEQ_READ == operation) {
+ r = seq_read_bench(secondsToRun, num_ops, num_objects, concurrentios, prev_pid, no_verify);
+ if (r != 0) goto out;
+ }
+ else if (OP_RAND_READ == operation) {
+ r = rand_read_bench(secondsToRun, num_ops, num_objects, concurrentios, prev_pid, no_verify);
+ if (r != 0) goto out;
+ }
+
+ if (OP_WRITE == operation && cleanup) {
+ r = fetch_bench_metadata(run_name_meta, &op_size, &object_size,
+ &num_ops, &num_objects, &prev_pid);
+ if (r < 0) {
+ if (r == -ENOENT)
+ cerr << "Should never happen: bench metadata missing for current run!" << std::endl;
+ goto out;
+ }
+
+ data.start_time = mono_clock::now();
+ out(cout) << "Cleaning up (deleting benchmark objects)" << std::endl;
+
+ r = clean_up(num_objects, prev_pid, concurrentios);
+ if (r != 0) goto out;
+
+ timePassed = mono_clock::now() - data.start_time;
+ out(cout) << "Clean up completed and total clean up time :" << timePassed.count() << std::endl;
+
+ // lastrun file
+ r = sync_remove(run_name_meta);
+ if (r != 0) goto out;
+ }
+
+ out:
+ if (formatter) {
+ formatter->close_section(); // bench
+ formatter->flush(*outstream);
+ *outstream << std::endl;
+ }
+ delete[] contentsChars;
+ return r;
+}
+
+struct lock_cond {
+ explicit lock_cond(ceph::mutex *_lock) : lock(_lock) {}
+ ceph::mutex *lock;
+ ceph::condition_variable cond;
+};
+
+void _aio_cb(void *cb, void *arg) {
+ struct lock_cond *lc = (struct lock_cond *)arg;
+ lc->lock->lock();
+ lc->cond.notify_all();
+ lc->lock->unlock();
+}
+
+int ObjBencher::fetch_bench_metadata(const std::string& metadata_file,
+ uint64_t *op_size, uint64_t* object_size,
+ int* num_ops, int* num_objects, int* prevPid) {
+ int r = 0;
+ bufferlist object_data;
+
+ r = sync_read(metadata_file, object_data,
+ sizeof(int) * 2 + sizeof(size_t) * 2);
+ if (r <= 0) {
+ // treat an empty file as a file that does not exist
+ if (r == 0) {
+ r = -ENOENT;
+ }
+ return r;
+ }
+ auto p = object_data.cbegin();
+ decode(*object_size, p);
+ decode(*num_ops, p);
+ decode(*prevPid, p);
+ if (!p.end()) {
+ decode(*op_size, p);
+ } else {
+ *op_size = *object_size;
+ }
+ unsigned ops_per_object = 1;
+ // make sure *op_size value is reasonable
+ if (*op_size > 0 && *object_size > *op_size) {
+ ops_per_object = *object_size / *op_size;
+ }
+ *num_objects = (*num_ops + ops_per_object - 1) / ops_per_object;
+
+ return 0;
+}
+
+int ObjBencher::write_bench(int secondsToRun,
+ int concurrentios, const string& run_name_meta,
+ unsigned max_objects, int prev_pid) {
+ if (concurrentios <= 0)
+ return -EINVAL;
+
+ if (!formatter) {
+ out(cout) << "Maintaining " << concurrentios << " concurrent writes of "
+ << data.op_size << " bytes to objects of size "
+ << data.object_size << " for up to "
+ << secondsToRun << " seconds or "
+ << max_objects << " objects"
+ << std::endl;
+ } else {
+ formatter->dump_format("concurrent_ios", "%d", concurrentios);
+ formatter->dump_format("object_size", "%d", data.object_size);
+ formatter->dump_format("op_size", "%d", data.op_size);
+ formatter->dump_format("seconds_to_run", "%d", secondsToRun);
+ formatter->dump_format("max_objects", "%d", max_objects);
+ }
+ bufferlist* newContents = 0;
+
+ std::string prefix = prev_pid ? generate_object_prefix(prev_pid) : generate_object_prefix();
+ if (!formatter)
+ out(cout) << "Object prefix: " << prefix << std::endl;
+ else
+ formatter->dump_string("object_prefix", prefix);
+
+ std::vector<string> name(concurrentios);
+ std::string newName;
+ unique_ptr<bufferlist> contents[concurrentios];
+ int r = 0;
+ bufferlist b_write;
+ lock_cond lc(&lock);
+ double total_latency = 0;
+ std::vector<mono_time> start_times(concurrentios);
+ mono_time stopTime;
+ std::chrono::duration<double> timePassed;
+
+ unsigned writes_per_object = 1;
+ if (data.op_size)
+ writes_per_object = data.object_size / data.op_size;
+
+ r = completions_init(concurrentios);
+
+ //set up writes so I can start them together
+ for (int i = 0; i<concurrentios; ++i) {
+ name[i] = generate_object_name_fast(i / writes_per_object);
+ contents[i] = std::make_unique<bufferlist>();
+ snprintf(data.object_contents, data.op_size, "I'm the %16dth op!", i);
+ contents[i]->append(data.object_contents, data.op_size);
+ }
+
+ pthread_t print_thread;
+
+ pthread_create(&print_thread, NULL, ObjBencher::status_printer, (void *)this);
+ ceph_pthread_setname(print_thread, "write_stat");
+ std::unique_lock locker{lock};
+ data.finished = 0;
+ data.start_time = mono_clock::now();
+ locker.unlock();
+ for (int i = 0; i<concurrentios; ++i) {
+ start_times[i] = mono_clock::now();
+ r = create_completion(i, _aio_cb, (void *)&lc);
+ if (r < 0)
+ goto ERR;
+ r = aio_write(name[i], i, *contents[i], data.op_size,
+ data.op_size * (i % writes_per_object));
+ if (r < 0) {
+ goto ERR;
+ }
+ locker.lock();
+ ++data.started;
+ ++data.in_flight;
+ locker.unlock();
+ }
+
+ //keep on adding new writes as old ones complete until we've passed minimum time
+ int slot;
+
+ //don't need locking for reads because other thread doesn't write
+
+ stopTime = data.start_time + std::chrono::seconds(secondsToRun);
+ slot = 0;
+ locker.lock();
+ while (data.finished < data.started) {
+ bool found = false;
+ while (1) {
+ int old_slot = slot;
+ do {
+ if (completion_is_done(slot)) {
+ found = true;
+ break;
+ }
+ slot++;
+ if (slot == concurrentios) {
+ slot = 0;
+ }
+ } while (slot != old_slot);
+ if (found)
+ break;
+ lc.cond.wait(locker);
+ }
+ locker.unlock();
+
+ completion_wait(slot);
+ locker.lock();
+ r = completion_ret(slot);
+ if (r != 0) {
+ locker.unlock();
+ goto ERR;
+ }
+ data.cur_latency = mono_clock::now() - start_times[slot];
+ total_latency += data.cur_latency.count();
+ if( data.cur_latency.count() > data.max_latency)
+ data.max_latency = data.cur_latency.count();
+ if (data.cur_latency.count() < data.min_latency)
+ data.min_latency = data.cur_latency.count();
+ ++data.finished;
+ double delta = data.cur_latency.count() - data.avg_latency;
+ data.avg_latency = total_latency / data.finished;
+ data.latency_diff_sum += delta * (data.cur_latency.count() - data.avg_latency);
+ --data.in_flight;
+ locker.unlock();
+ release_completion(slot);
+
+ if (!secondsToRun || mono_clock::now() >= stopTime) {
+ locker.lock();
+ continue;
+ }
+
+ if (data.op_size && max_objects &&
+ data.started >=
+ (int)((data.object_size * max_objects + data.op_size - 1) /
+ data.op_size)) {
+ locker.lock();
+ continue;
+ }
+
+ //write new stuff to backend
+
+ //create new contents and name on the heap, and fill them
+ newName = generate_object_name_fast(data.started / writes_per_object);
+ newContents = contents[slot].get();
+ snprintf(newContents->c_str(), data.op_size, "I'm the %16dth op!", data.started);
+ // we wrote to buffer, going around internal crc cache, so invalidate it now.
+ newContents->invalidate_crc();
+
+ start_times[slot] = mono_clock::now();
+ r = create_completion(slot, _aio_cb, &lc);
+ if (r < 0)
+ goto ERR;
+ r = aio_write(newName, slot, *newContents, data.op_size,
+ data.op_size * (data.started % writes_per_object));
+ if (r < 0) {
+ goto ERR;
+ }
+ name[slot] = newName;
+ locker.lock();
+ ++data.started;
+ ++data.in_flight;
+ }
+ locker.unlock();
+
+ timePassed = mono_clock::now() - data.start_time;
+ locker.lock();
+ data.done = true;
+ locker.unlock();
+
+ pthread_join(print_thread, NULL);
+
+ double bandwidth;
+ bandwidth = ((double)data.finished)*((double)data.op_size) /
+ timePassed.count();
+ bandwidth = bandwidth/(1024*1024); // we want it in MB/sec
+
+ double bandwidth_stddev;
+ double iops_stddev;
+ double latency_stddev;
+ if (data.idata.bandwidth_cycles > 1) {
+ bandwidth_stddev = std::sqrt(data.idata.bandwidth_diff_sum / (data.idata.bandwidth_cycles - 1));
+ } else {
+ bandwidth_stddev = 0;
+ }
+ if (data.idata.iops_cycles > 1) {
+ iops_stddev = std::sqrt(data.idata.iops_diff_sum / (data.idata.iops_cycles - 1));
+ } else {
+ iops_stddev = 0;
+ }
+ if (data.finished > 1) {
+ latency_stddev = std::sqrt(data.latency_diff_sum / (data.finished - 1));
+ } else {
+ latency_stddev = 0;
+ }
+
+ if (!formatter) {
+ out(cout) << "Total time run: " << timePassed.count() << std::endl
+ << "Total writes made: " << data.finished << std::endl
+ << "Write size: " << data.op_size << std::endl
+ << "Object size: " << data.object_size << std::endl
+ << "Bandwidth (MB/sec): " << setprecision(6) << bandwidth << std::endl
+ << "Stddev Bandwidth: " << bandwidth_stddev << std::endl
+ << "Max bandwidth (MB/sec): " << data.idata.max_bandwidth << std::endl
+ << "Min bandwidth (MB/sec): " << data.idata.min_bandwidth << std::endl
+ << "Average IOPS: " << (int)(data.finished/timePassed.count()) << std::endl
+ << "Stddev IOPS: " << iops_stddev << std::endl
+ << "Max IOPS: " << data.idata.max_iops << std::endl
+ << "Min IOPS: " << data.idata.min_iops << std::endl
+ << "Average Latency(s): " << data.avg_latency << std::endl
+ << "Stddev Latency(s): " << latency_stddev << std::endl
+ << "Max latency(s): " << data.max_latency << std::endl
+ << "Min latency(s): " << data.min_latency << std::endl;
+ } else {
+ formatter->dump_format("total_time_run", "%f", timePassed.count());
+ formatter->dump_format("total_writes_made", "%d", data.finished);
+ formatter->dump_format("write_size", "%d", data.op_size);
+ formatter->dump_format("object_size", "%d", data.object_size);
+ formatter->dump_format("bandwidth", "%f", bandwidth);
+ formatter->dump_format("stddev_bandwidth", "%f", bandwidth_stddev);
+ formatter->dump_format("max_bandwidth", "%f", data.idata.max_bandwidth);
+ formatter->dump_format("min_bandwidth", "%f", data.idata.min_bandwidth);
+ formatter->dump_format("average_iops", "%d", (int)(data.finished/timePassed.count()));
+ formatter->dump_format("stddev_iops", "%d", iops_stddev);
+ formatter->dump_format("max_iops", "%d", data.idata.max_iops);
+ formatter->dump_format("min_iops", "%d", data.idata.min_iops);
+ formatter->dump_format("average_latency", "%f", data.avg_latency);
+ formatter->dump_format("stddev_latency", "%f", latency_stddev);
+ formatter->dump_format("max_latency", "%f", data.max_latency);
+ formatter->dump_format("min_latency", "%f", data.min_latency);
+ }
+ //write object size/number data for read benchmarks
+ encode(data.object_size, b_write);
+ encode(data.finished, b_write);
+ encode(prev_pid ? prev_pid : getpid(), b_write);
+ encode(data.op_size, b_write);
+
+ // persist meta-data for further cleanup or read
+ sync_write(run_name_meta, b_write, sizeof(int)*3);
+
+ completions_done();
+
+ return 0;
+
+ ERR:
+ locker.lock();
+ data.done = 1;
+ locker.unlock();
+ pthread_join(print_thread, NULL);
+ return r;
+}
+
+int ObjBencher::seq_read_bench(
+ int seconds_to_run, int num_ops, int num_objects,
+ int concurrentios, int pid, bool no_verify) {
+
+ lock_cond lc(&lock);
+
+ if (concurrentios <= 0)
+ return -EINVAL;
+
+ std::vector<string> name(concurrentios);
+ std::string newName;
+ unique_ptr<bufferlist> contents[concurrentios];
+ int index[concurrentios];
+ int errors = 0;
+ double total_latency = 0;
+ int r = 0;
+ std::vector<mono_time> start_times(concurrentios);
+ mono_clock::duration time_to_run = std::chrono::seconds(seconds_to_run);
+ std::chrono::duration<double> timePassed;
+ sanitize_object_contents(&data, data.op_size); //clean it up once; subsequent
+ //changes will be safe because string length should remain the same
+
+ unsigned reads_per_object = 1;
+ if (data.op_size)
+ reads_per_object = data.object_size / data.op_size;
+
+ r = completions_init(concurrentios);
+ if (r < 0)
+ return r;
+
+ //set up initial reads
+ for (int i = 0; i < concurrentios; ++i) {
+ name[i] = generate_object_name_fast(i / reads_per_object, pid);
+ contents[i] = std::make_unique<bufferlist>();
+ }
+
+ std::unique_lock locker{lock};
+ data.finished = 0;
+ data.start_time = mono_clock::now();
+ locker.unlock();
+
+ pthread_t print_thread;
+ pthread_create(&print_thread, NULL, status_printer, (void *)this);
+ ceph_pthread_setname(print_thread, "seq_read_stat");
+
+ mono_time finish_time = data.start_time + time_to_run;
+ //start initial reads
+ for (int i = 0; i < concurrentios; ++i) {
+ index[i] = i;
+ start_times[i] = mono_clock::now();
+ create_completion(i, _aio_cb, (void *)&lc);
+ r = aio_read(name[i], i, contents[i].get(), data.op_size,
+ data.op_size * (i % reads_per_object));
+ if (r < 0) {
+ cerr << "r = " << r << std::endl;
+ goto ERR;
+ }
+ locker.lock();
+ ++data.started;
+ ++data.in_flight;
+ locker.unlock();
+ }
+
+ //keep on adding new reads as old ones complete
+ int slot;
+ bufferlist *cur_contents;
+
+ slot = 0;
+ while (data.finished < data.started) {
+ locker.lock();
+ int old_slot = slot;
+ bool found = false;
+ while (1) {
+ do {
+ if (completion_is_done(slot)) {
+ found = true;
+ break;
+ }
+ slot++;
+ if (slot == concurrentios) {
+ slot = 0;
+ }
+ } while (slot != old_slot);
+ if (found) {
+ break;
+ }
+ lc.cond.wait(locker);
+ }
+
+ // calculate latency here, so memcmp doesn't inflate it
+ data.cur_latency = mono_clock::now() - start_times[slot];
+
+ cur_contents = contents[slot].get();
+ int current_index = index[slot];
+
+ // invalidate internal crc cache
+ cur_contents->invalidate_crc();
+
+ if (!no_verify) {
+ snprintf(data.object_contents, data.op_size, "I'm the %16dth op!", current_index);
+ if ( (cur_contents->length() != data.op_size) ||
+ (memcmp(data.object_contents, cur_contents->c_str(), data.op_size) != 0) ) {
+ cerr << name[slot] << " is not correct!" << std::endl;
+ ++errors;
+ }
+ }
+
+ bool start_new_read = (seconds_to_run && mono_clock::now() < finish_time) &&
+ num_ops > data.started;
+ if (start_new_read) {
+ newName = generate_object_name_fast(data.started / reads_per_object, pid);
+ index[slot] = data.started;
+ }
+
+ locker.unlock();
+ completion_wait(slot);
+ locker.lock();
+ r = completion_ret(slot);
+ if (r < 0) {
+ cerr << "read got " << r << std::endl;
+ locker.unlock();
+ goto ERR;
+ }
+ total_latency += data.cur_latency.count();
+ if (data.cur_latency.count() > data.max_latency)
+ data.max_latency = data.cur_latency.count();
+ if (data.cur_latency.count() < data.min_latency)
+ data.min_latency = data.cur_latency.count();
+ ++data.finished;
+ data.avg_latency = total_latency / data.finished;
+ --data.in_flight;
+ locker.unlock();
+ release_completion(slot);
+
+ if (!start_new_read)
+ continue;
+
+ //start new read and check data if requested
+ start_times[slot] = mono_clock::now();
+ create_completion(slot, _aio_cb, (void *)&lc);
+ r = aio_read(newName, slot, contents[slot].get(), data.op_size,
+ data.op_size * (data.started % reads_per_object));
+ if (r < 0) {
+ goto ERR;
+ }
+ locker.lock();
+ ++data.started;
+ ++data.in_flight;
+ locker.unlock();
+ name[slot] = newName;
+ }
+
+ timePassed = mono_clock::now() - data.start_time;
+ locker.lock();
+ data.done = true;
+ locker.unlock();
+
+ pthread_join(print_thread, NULL);
+
+ double bandwidth;
+ bandwidth = ((double)data.finished)*((double)data.op_size)/timePassed.count();
+ bandwidth = bandwidth/(1024*1024); // we want it in MB/sec
+
+ double iops_stddev;
+ if (data.idata.iops_cycles > 1) {
+ iops_stddev = std::sqrt(data.idata.iops_diff_sum / (data.idata.iops_cycles - 1));
+ } else {
+ iops_stddev = 0;
+ }
+
+ if (!formatter) {
+ out(cout) << "Total time run: " << timePassed.count() << std::endl
+ << "Total reads made: " << data.finished << std::endl
+ << "Read size: " << data.op_size << std::endl
+ << "Object size: " << data.object_size << std::endl
+ << "Bandwidth (MB/sec): " << setprecision(6) << bandwidth << std::endl
+ << "Average IOPS: " << (int)(data.finished/timePassed.count()) << std::endl
+ << "Stddev IOPS: " << iops_stddev << std::endl
+ << "Max IOPS: " << data.idata.max_iops << std::endl
+ << "Min IOPS: " << data.idata.min_iops << std::endl
+ << "Average Latency(s): " << data.avg_latency << std::endl
+ << "Max latency(s): " << data.max_latency << std::endl
+ << "Min latency(s): " << data.min_latency << std::endl;
+ } else {
+ formatter->dump_format("total_time_run", "%f", timePassed.count());
+ formatter->dump_format("total_reads_made", "%d", data.finished);
+ formatter->dump_format("read_size", "%d", data.op_size);
+ formatter->dump_format("object_size", "%d", data.object_size);
+ formatter->dump_format("bandwidth", "%f", bandwidth);
+ formatter->dump_format("average_iops", "%d", (int)(data.finished/timePassed.count()));
+ formatter->dump_format("stddev_iops", "%f", iops_stddev);
+ formatter->dump_format("max_iops", "%d", data.idata.max_iops);
+ formatter->dump_format("min_iops", "%d", data.idata.min_iops);
+ formatter->dump_format("average_latency", "%f", data.avg_latency);
+ formatter->dump_format("max_latency", "%f", data.max_latency);
+ formatter->dump_format("min_latency", "%f", data.min_latency);
+ }
+
+ completions_done();
+
+ return (errors > 0 ? -EIO : 0);
+
+ ERR:
+ locker.lock();
+ data.done = 1;
+ locker.unlock();
+ pthread_join(print_thread, NULL);
+ return r;
+}
+
+int ObjBencher::rand_read_bench(
+ int seconds_to_run, int num_ops, int num_objects,
+ int concurrentios, int pid, bool no_verify) {
+
+ lock_cond lc(&lock);
+
+ if (concurrentios <= 0)
+ return -EINVAL;
+
+ std::vector<string> name(concurrentios);
+ std::string newName;
+ unique_ptr<bufferlist> contents[concurrentios];
+ int index[concurrentios];
+ int errors = 0;
+ int r = 0;
+ double total_latency = 0;
+ std::vector<mono_time> start_times(concurrentios);
+ mono_clock::duration time_to_run = std::chrono::seconds(seconds_to_run);
+ std::chrono::duration<double> timePassed;
+ sanitize_object_contents(&data, data.op_size); //clean it up once; subsequent
+ //changes will be safe because string length should remain the same
+
+ unsigned reads_per_object = 1;
+ if (data.op_size)
+ reads_per_object = data.object_size / data.op_size;
+
+ srand (time(NULL));
+
+ r = completions_init(concurrentios);
+ if (r < 0)
+ return r;
+
+ //set up initial reads
+ for (int i = 0; i < concurrentios; ++i) {
+ name[i] = generate_object_name_fast(i / reads_per_object, pid);
+ contents[i] = std::make_unique<bufferlist>();
+ }
+
+ unique_lock locker{lock};
+ data.finished = 0;
+ data.start_time = mono_clock::now();
+ locker.unlock();
+
+ pthread_t print_thread;
+ pthread_create(&print_thread, NULL, status_printer, (void *)this);
+ ceph_pthread_setname(print_thread, "rand_read_stat");
+
+ mono_time finish_time = data.start_time + time_to_run;
+ //start initial reads
+ for (int i = 0; i < concurrentios; ++i) {
+ index[i] = i;
+ start_times[i] = mono_clock::now();
+ create_completion(i, _aio_cb, (void *)&lc);
+ r = aio_read(name[i], i, contents[i].get(), data.op_size,
+ data.op_size * (i % reads_per_object));
+ if (r < 0) {
+ cerr << "r = " << r << std::endl;
+ goto ERR;
+ }
+ locker.lock();
+ ++data.started;
+ ++data.in_flight;
+ locker.unlock();
+ }
+
+ //keep on adding new reads as old ones complete
+ int slot;
+ bufferlist *cur_contents;
+ int rand_id;
+
+ slot = 0;
+ while (data.finished < data.started) {
+ locker.lock();
+ int old_slot = slot;
+ bool found = false;
+ while (1) {
+ do {
+ if (completion_is_done(slot)) {
+ found = true;
+ break;
+ }
+ slot++;
+ if (slot == concurrentios) {
+ slot = 0;
+ }
+ } while (slot != old_slot);
+ if (found) {
+ break;
+ }
+ lc.cond.wait(locker);
+ }
+
+ // calculate latency here, so memcmp doesn't inflate it
+ data.cur_latency = mono_clock::now() - start_times[slot];
+
+ locker.unlock();
+
+ int current_index = index[slot];
+ cur_contents = contents[slot].get();
+ completion_wait(slot);
+ locker.lock();
+ r = completion_ret(slot);
+ if (r < 0) {
+ cerr << "read got " << r << std::endl;
+ locker.unlock();
+ goto ERR;
+ }
+
+ total_latency += data.cur_latency.count();
+ if (data.cur_latency.count() > data.max_latency)
+ data.max_latency = data.cur_latency.count();
+ if (data.cur_latency.count() < data.min_latency)
+ data.min_latency = data.cur_latency.count();
+ ++data.finished;
+ data.avg_latency = total_latency / data.finished;
+ --data.in_flight;
+
+ if (!no_verify) {
+ snprintf(data.object_contents, data.op_size, "I'm the %16dth op!", current_index);
+ if ((cur_contents->length() != data.op_size) ||
+ (memcmp(data.object_contents, cur_contents->c_str(), data.op_size) != 0)) {
+ cerr << name[slot] << " is not correct!" << std::endl;
+ ++errors;
+ }
+ }
+
+ locker.unlock();
+ release_completion(slot);
+
+ if (!seconds_to_run || mono_clock::now() >= finish_time)
+ continue;
+
+ //start new read and check data if requested
+
+ rand_id = rand() % num_ops;
+ newName = generate_object_name_fast(rand_id / reads_per_object, pid);
+ index[slot] = rand_id;
+
+ // invalidate internal crc cache
+ cur_contents->invalidate_crc();
+
+ start_times[slot] = mono_clock::now();
+ create_completion(slot, _aio_cb, (void *)&lc);
+ r = aio_read(newName, slot, contents[slot].get(), data.op_size,
+ data.op_size * (rand_id % reads_per_object));
+ if (r < 0) {
+ goto ERR;
+ }
+ locker.lock();
+ ++data.started;
+ ++data.in_flight;
+ locker.unlock();
+ name[slot] = newName;
+ }
+
+ timePassed = mono_clock::now() - data.start_time;
+ locker.lock();
+ data.done = true;
+ locker.unlock();
+
+ pthread_join(print_thread, NULL);
+
+ double bandwidth;
+ bandwidth = ((double)data.finished)*((double)data.op_size)/timePassed.count();
+ bandwidth = bandwidth/(1024*1024); // we want it in MB/sec
+
+ double iops_stddev;
+ if (data.idata.iops_cycles > 1) {
+ iops_stddev = std::sqrt(data.idata.iops_diff_sum / (data.idata.iops_cycles - 1));
+ } else {
+ iops_stddev = 0;
+ }
+
+ if (!formatter) {
+ out(cout) << "Total time run: " << timePassed.count() << std::endl
+ << "Total reads made: " << data.finished << std::endl
+ << "Read size: " << data.op_size << std::endl
+ << "Object size: " << data.object_size << std::endl
+ << "Bandwidth (MB/sec): " << setprecision(6) << bandwidth << std::endl
+ << "Average IOPS: " << (int)(data.finished/timePassed.count()) << std::endl
+ << "Stddev IOPS: " << iops_stddev << std::endl
+ << "Max IOPS: " << data.idata.max_iops << std::endl
+ << "Min IOPS: " << data.idata.min_iops << std::endl
+ << "Average Latency(s): " << data.avg_latency << std::endl
+ << "Max latency(s): " << data.max_latency << std::endl
+ << "Min latency(s): " << data.min_latency << std::endl;
+ } else {
+ formatter->dump_format("total_time_run", "%f", timePassed.count());
+ formatter->dump_format("total_reads_made", "%d", data.finished);
+ formatter->dump_format("read_size", "%d", data.op_size);
+ formatter->dump_format("object_size", "%d", data.object_size);
+ formatter->dump_format("bandwidth", "%f", bandwidth);
+ formatter->dump_format("average_iops", "%d", (int)(data.finished/timePassed.count()));
+ formatter->dump_format("stddev_iops", "%f", iops_stddev);
+ formatter->dump_format("max_iops", "%d", data.idata.max_iops);
+ formatter->dump_format("min_iops", "%d", data.idata.min_iops);
+ formatter->dump_format("average_latency", "%f", data.avg_latency);
+ formatter->dump_format("max_latency", "%f", data.max_latency);
+ formatter->dump_format("min_latency", "%f", data.min_latency);
+ }
+ completions_done();
+
+ return (errors > 0 ? -EIO : 0);
+
+ ERR:
+ locker.lock();
+ data.done = 1;
+ locker.unlock();
+ pthread_join(print_thread, NULL);
+ return r;
+}
+
+int ObjBencher::clean_up(const std::string& orig_prefix, int concurrentios, const std::string& run_name) {
+ int r = 0;
+ uint64_t op_size, object_size;
+ int num_ops, num_objects;
+ int prevPid;
+
+ // default meta object if user does not specify one
+ const std::string run_name_meta = (run_name.empty() ? BENCH_LASTRUN_METADATA : run_name);
+ const std::string prefix = (orig_prefix.empty() ? generate_object_prefix_nopid() : orig_prefix);
+
+ if (prefix.substr(0, BENCH_PREFIX.length()) != BENCH_PREFIX) {
+ cerr << "Specified --prefix invalid, it must begin with \"" << BENCH_PREFIX << "\"" << std::endl;
+ return -EINVAL;
+ }
+
+ std::list<Object> unfiltered_objects;
+ std::set<std::string> meta_namespaces, all_namespaces;
+
+ // If caller set all_nspaces this will be searching
+ // across multiple namespaces.
+ while (true) {
+ bool objects_remain = get_objects(&unfiltered_objects, 20);
+ if (!objects_remain)
+ break;
+
+ std::list<Object>::const_iterator i = unfiltered_objects.begin();
+ for ( ; i != unfiltered_objects.end(); ++i) {
+ if (i->first == run_name_meta) {
+ meta_namespaces.insert(i->second);
+ }
+ if (i->first.substr(0, prefix.length()) == prefix) {
+ all_namespaces.insert(i->second);
+ }
+ }
+ }
+
+ std::set<std::string>::const_iterator i = all_namespaces.begin();
+ for ( ; i != all_namespaces.end(); ++i) {
+ set_namespace(*i);
+
+ // if no metadata file found we should try to do a linear search on the prefix
+ if (meta_namespaces.find(*i) == meta_namespaces.end()) {
+ int r = clean_up_slow(prefix, concurrentios);
+ if (r < 0) {
+ cerr << "clean_up_slow error r= " << r << std::endl;
+ return r;
+ }
+ continue;
+ }
+
+ r = fetch_bench_metadata(run_name_meta, &op_size, &object_size, &num_ops, &num_objects, &prevPid);
+ if (r < 0) {
+ return r;
+ }
+
+ r = clean_up(num_objects, prevPid, concurrentios);
+ if (r != 0) return r;
+
+ r = sync_remove(run_name_meta);
+ if (r != 0) return r;
+ }
+
+ return 0;
+}
+
+int ObjBencher::clean_up(int num_objects, int prevPid, int concurrentios) {
+ lock_cond lc(&lock);
+
+ if (concurrentios <= 0)
+ return -EINVAL;
+
+ std::vector<string> name(concurrentios);
+ std::string newName;
+ int r = 0;
+ int slot = 0;
+
+ unique_lock locker{lock};
+ data.done = false;
+ data.in_flight = 0;
+ data.started = 0;
+ data.finished = 0;
+ locker.unlock();
+
+ // don't start more completions than files
+ if (num_objects == 0) {
+ return 0;
+ } else if (num_objects < concurrentios) {
+ concurrentios = num_objects;
+ }
+
+ r = completions_init(concurrentios);
+ if (r < 0)
+ return r;
+
+ //set up initial removes
+ for (int i = 0; i < concurrentios; ++i) {
+ name[i] = generate_object_name_fast(i, prevPid);
+ }
+
+ //start initial removes
+ for (int i = 0; i < concurrentios; ++i) {
+ create_completion(i, _aio_cb, (void *)&lc);
+ r = aio_remove(name[i], i);
+ if (r < 0) { //naughty, doesn't clean up heap
+ cerr << "r = " << r << std::endl;
+ goto ERR;
+ }
+ locker.lock();
+ ++data.started;
+ ++data.in_flight;
+ locker.unlock();
+ }
+
+ //keep on adding new removes as old ones complete
+ while (data.finished < data.started) {
+ locker.lock();
+ int old_slot = slot;
+ bool found = false;
+ while (1) {
+ do {
+ if (completion_is_done(slot)) {
+ found = true;
+ break;
+ }
+ slot++;
+ if (slot == concurrentios) {
+ slot = 0;
+ }
+ } while (slot != old_slot);
+ if (found) {
+ break;
+ }
+ lc.cond.wait(locker);
+ }
+ locker.unlock();
+ completion_wait(slot);
+ locker.lock();
+ r = completion_ret(slot);
+ if (r != 0 && r != -ENOENT) { // file does not exist
+ cerr << "remove got " << r << std::endl;
+ locker.unlock();
+ goto ERR;
+ }
+ ++data.finished;
+ --data.in_flight;
+ locker.unlock();
+ release_completion(slot);
+
+ if (data.started >= num_objects)
+ continue;
+
+ //start new remove and check data if requested
+ newName = generate_object_name_fast(data.started, prevPid);
+ create_completion(slot, _aio_cb, (void *)&lc);
+ r = aio_remove(newName, slot);
+ if (r < 0) {
+ goto ERR;
+ }
+ locker.lock();
+ ++data.started;
+ ++data.in_flight;
+ locker.unlock();
+ name[slot] = newName;
+ }
+
+ locker.lock();
+ data.done = true;
+ locker.unlock();
+
+ completions_done();
+
+ out(cout) << "Removed " << data.finished << " object" << (data.finished != 1 ? "s" : "") << std::endl;
+
+ return 0;
+
+ ERR:
+ locker.lock();
+ data.done = 1;
+ locker.unlock();
+ return r;
+}
+
+/**
+ * Return objects from the datastore which match a prefix.
+ *
+ * Clears the list and populates it with any objects which match the
+ * prefix. The list is guaranteed to have at least one item when the
+ * function returns true.
+ *
+ * @param prefix the prefix to match against
+ * @param objects [out] return list of objects
+ * @returns true if there are any objects in the store which match
+ * the prefix, false if there are no more
+ */
+bool ObjBencher::more_objects_matching_prefix(const std::string& prefix, std::list<Object>* objects) {
+ std::list<Object> unfiltered_objects;
+
+ objects->clear();
+
+ while (objects->empty()) {
+ bool objects_remain = get_objects(&unfiltered_objects, 20);
+ if (!objects_remain)
+ return false;
+
+ std::list<Object>::const_iterator i = unfiltered_objects.begin();
+ for ( ; i != unfiltered_objects.end(); ++i) {
+ if (i->first.substr(0, prefix.length()) == prefix) {
+ objects->push_back(*i);
+ }
+ }
+ }
+
+ return true;
+}
+
+int ObjBencher::clean_up_slow(const std::string& prefix, int concurrentios) {
+ lock_cond lc(&lock);
+
+ if (concurrentios <= 0)
+ return -EINVAL;
+
+ std::vector<Object> name(concurrentios);
+ Object newName;
+ int r = 0;
+ int slot = 0;
+ std::list<Object> objects;
+ bool objects_remain = true;
+
+ std::unique_lock locker{lock};
+ data.done = false;
+ data.in_flight = 0;
+ data.started = 0;
+ data.finished = 0;
+ locker.unlock();
+
+ out(cout) << "Warning: using slow linear search" << std::endl;
+
+ r = completions_init(concurrentios);
+ if (r < 0)
+ return r;
+
+ //set up initial removes
+ for (int i = 0; i < concurrentios; ++i) {
+ if (objects.empty()) {
+ // if there are fewer objects than concurrent ios, don't generate extras
+ bool objects_found = more_objects_matching_prefix(prefix, &objects);
+ if (!objects_found) {
+ concurrentios = i;
+ objects_remain = false;
+ break;
+ }
+ }
+
+ name[i] = objects.front();
+ objects.pop_front();
+ }
+
+ //start initial removes
+ for (int i = 0; i < concurrentios; ++i) {
+ create_completion(i, _aio_cb, (void *)&lc);
+ set_namespace(name[i].second);
+ r = aio_remove(name[i].first, i);
+ if (r < 0) { //naughty, doesn't clean up heap
+ cerr << "r = " << r << std::endl;
+ goto ERR;
+ }
+ locker.lock();
+ ++data.started;
+ ++data.in_flight;
+ locker.unlock();
+ }
+
+ //keep on adding new removes as old ones complete
+ while (objects_remain) {
+ locker.lock();
+ int old_slot = slot;
+ bool found = false;
+ while (1) {
+ do {
+ if (completion_is_done(slot)) {
+ found = true;
+ break;
+ }
+ slot++;
+ if (slot == concurrentios) {
+ slot = 0;
+ }
+ } while (slot != old_slot);
+ if (found) {
+ break;
+ }
+ lc.cond.wait(locker);
+ }
+ locker.unlock();
+
+ // get more objects if necessary
+ if (objects.empty()) {
+ objects_remain = more_objects_matching_prefix(prefix, &objects);
+ // quit if there are no more
+ if (!objects_remain) {
+ break;
+ }
+ }
+
+ // get the next object
+ newName = objects.front();
+ objects.pop_front();
+
+ completion_wait(slot);
+ locker.lock();
+ r = completion_ret(slot);
+ if (r != 0 && r != -ENOENT) { // file does not exist
+ cerr << "remove got " << r << std::endl;
+ locker.unlock();
+ goto ERR;
+ }
+ ++data.finished;
+ --data.in_flight;
+ locker.unlock();
+ release_completion(slot);
+
+ //start new remove and check data if requested
+ create_completion(slot, _aio_cb, (void *)&lc);
+ set_namespace(newName.second);
+ r = aio_remove(newName.first, slot);
+ if (r < 0) {
+ goto ERR;
+ }
+ locker.lock();
+ ++data.started;
+ ++data.in_flight;
+ locker.unlock();
+ name[slot] = newName;
+ }
+
+ //wait for final removes to complete
+ while (data.finished < data.started) {
+ slot = data.finished % concurrentios;
+ completion_wait(slot);
+ locker.lock();
+ r = completion_ret(slot);
+ if (r != 0 && r != -ENOENT) { // file does not exist
+ cerr << "remove got " << r << std::endl;
+ locker.unlock();
+ goto ERR;
+ }
+ ++data.finished;
+ --data.in_flight;
+ release_completion(slot);
+ locker.unlock();
+ }
+
+ locker.lock();
+ data.done = true;
+ locker.unlock();
+
+ completions_done();
+
+ out(cout) << "Removed " << data.finished << " object" << (data.finished != 1 ? "s" : "") << std::endl;
+
+ return 0;
+
+ ERR:
+ locker.lock();
+ data.done = 1;
+ locker.unlock();
+ return -EIO;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-16 15:17:51 +0000