diff options
Diffstat (limited to 'collectors/perf.plugin')
| -rw-r--r-- | collectors/perf.plugin/Makefile.am | 8 | ||||
| l--------- | collectors/perf.plugin/README.md | 1 | ||||
| -rw-r--r-- | collectors/perf.plugin/integrations/cpu_performance.md | 192 | ||||
| -rw-r--r-- | collectors/perf.plugin/metadata.yaml | 252 | ||||
| -rw-r--r-- | collectors/perf.plugin/perf_plugin.c | 1342 |
5 files changed, 0 insertions, 1795 deletions
diff --git a/collectors/perf.plugin/Makefile.am b/collectors/perf.plugin/Makefile.am deleted file mode 100644 index 161784b8f..000000000 --- a/collectors/perf.plugin/Makefile.am +++ /dev/null @@ -1,8 +0,0 @@ -# SPDX-License-Identifier: GPL-3.0-or-later - -AUTOMAKE_OPTIONS = subdir-objects -MAINTAINERCLEANFILES = $(srcdir)/Makefile.in - -dist_noinst_DATA = \ - README.md \ - $(NULL) diff --git a/collectors/perf.plugin/README.md b/collectors/perf.plugin/README.md deleted file mode 120000 index fb8a0cd69..000000000 --- a/collectors/perf.plugin/README.md +++ /dev/null @@ -1 +0,0 @@ -integrations/cpu_performance.md
\ No newline at end of file diff --git a/collectors/perf.plugin/integrations/cpu_performance.md b/collectors/perf.plugin/integrations/cpu_performance.md deleted file mode 100644 index d3c316d2e..000000000 --- a/collectors/perf.plugin/integrations/cpu_performance.md +++ /dev/null @@ -1,192 +0,0 @@ -<!--startmeta -custom_edit_url: "https://github.com/netdata/netdata/edit/master/collectors/perf.plugin/README.md" -meta_yaml: "https://github.com/netdata/netdata/edit/master/collectors/perf.plugin/metadata.yaml" -sidebar_label: "CPU performance" -learn_status: "Published" -learn_rel_path: "Data Collection/Linux Systems" -most_popular: False -message: "DO NOT EDIT THIS FILE DIRECTLY, IT IS GENERATED BY THE COLLECTOR'S metadata.yaml FILE" -endmeta--> - -# CPU performance - - -<img src="https://netdata.cloud/img/bolt.svg" width="150"/> - - -Plugin: perf.plugin -Module: perf.plugin - -<img src="https://img.shields.io/badge/maintained%20by-Netdata-%2300ab44" /> - -## Overview - -This collector monitors CPU performance metrics about cycles, instructions, migrations, cache operations and more. - -It uses syscall (2) to open a file descriptior to monitor the perf events. - -This collector is only supported on the following platforms: - -- Linux - -This collector supports collecting metrics from multiple instances of this integration, including remote instances. - -It needs setuid to use necessary syscall to collect perf events. Netada sets the permission during installation time. - -### Default Behavior - -#### Auto-Detection - -This integration doesn't support auto-detection. - -#### Limits - -The default configuration for this integration does not impose any limits on data collection. - -#### Performance Impact - -The default configuration for this integration is not expected to impose a significant performance impact on the system. - - -## Metrics - -Metrics grouped by *scope*. - -The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels. - - - -### Per CPU performance instance - -These metrics refer to the entire monitored application. - -This scope has no labels. - -Metrics: - -| Metric | Dimensions | Unit | -|:------|:----------|:----| -| perf.cpu_cycles | cpu, ref_cpu | cycles/s | -| perf.instructions | instructions | instructions/s | -| perf.instructions_per_cycle | ipc | instructions/cycle | -| perf.branch_instructions | instructions, misses | instructions/s | -| perf.cache | references, misses | operations/s | -| perf.bus_cycles | bus | cycles/s | -| perf.stalled_cycles | frontend, backend | cycles/s | -| perf.migrations | migrations | migrations | -| perf.alignment_faults | faults | faults | -| perf.emulation_faults | faults | faults | -| perf.l1d_cache | read_access, read_misses, write_access, write_misses | events/s | -| perf.l1d_cache_prefetch | prefetches | prefetches/s | -| perf.l1i_cache | read_access, read_misses | events/s | -| perf.ll_cache | read_access, read_misses, write_access, write_misses | events/s | -| perf.dtlb_cache | read_access, read_misses, write_access, write_misses | events/s | -| perf.itlb_cache | read_access, read_misses | events/s | -| perf.pbu_cache | read_access | events/s | - - - -## Alerts - -There are no alerts configured by default for this integration. - - -## Setup - -### Prerequisites - -#### Install perf plugin - -If you are [using our official native DEB/RPM packages](https://github.com/netdata/netdata/blob/master/packaging/installer/UPDATE.md#determine-which-installation-method-you-used), make sure the `netdata-plugin-perf` package is installed. - - -#### Enable the pref plugin - -The plugin is disabled by default because the number of PMUs is usually quite limited and it is not desired to allow Netdata to struggle silently for PMUs, interfering with other performance monitoring software. - -To enable it, use `edit-config` from the Netdata [config directory](https://github.com/netdata/netdata/blob/master/docs/configure/nodes.md), which is typically at `/etc/netdata`, to edit the `netdata.conf` file. - -```bash -cd /etc/netdata # Replace this path with your Netdata config directory, if different -sudo ./edit-config netdata.conf -``` - -Change the value of the `perf` setting to `yes` in the `[plugins]` section. Save the file and restart the Netdata Agent with `sudo systemctl restart netdata`, or the [appropriate method](https://github.com/netdata/netdata/blob/master/docs/configure/start-stop-restart.md) for your system. - - - -### Configuration - -#### File - -The configuration file name for this integration is `netdata.conf`. -Configuration for this specific integration is located in the `[plugin:perf]` section within that file. - -The file format is a modified INI syntax. The general structure is: - -```ini -[section1] - option1 = some value - option2 = some other value - -[section2] - option3 = some third value -``` -You can edit the configuration file using the `edit-config` script from the -Netdata [config directory](https://github.com/netdata/netdata/blob/master/docs/configure/nodes.md#the-netdata-config-directory). - -```bash -cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata -sudo ./edit-config netdata.conf -``` -#### Options - -You can get the available options running: - -```bash -/usr/libexec/netdata/plugins.d/perf.plugin --help -```` - - -<details><summary>Config options</summary> - -| Name | Description | Default | Required | -|:----|:-----------|:-------|:--------:| -| update every | Data collection frequency. | 1 | no | -| command options | Command options that specify charts shown by plugin. `cycles`, `instructions`, `branch`, `cache`, `bus`, `stalled`, `migrations`, `alignment`, `emulation`, `L1D`, `L1D-prefetch`, `L1I`, `LL`, `DTLB`, `ITLB`, `PBU`. | 1 | yes | - -</details> - -#### Examples - -##### All metrics - -Monitor all metrics available. - -```yaml -[plugin:perf] - command options = all - -``` -##### CPU cycles - -Monitor CPU cycles. - -<details><summary>Config</summary> - -```yaml -[plugin:perf] - command options = cycles - -``` -</details> - - - -## Troubleshooting - -### Debug Mode - - - - diff --git a/collectors/perf.plugin/metadata.yaml b/collectors/perf.plugin/metadata.yaml deleted file mode 100644 index eada3351d..000000000 --- a/collectors/perf.plugin/metadata.yaml +++ /dev/null @@ -1,252 +0,0 @@ -plugin_name: perf.plugin -modules: - - meta: - plugin_name: perf.plugin - module_name: perf.plugin - monitored_instance: - name: CPU performance - link: "https://kernel.org/" - categories: - - data-collection.linux-systems - icon_filename: "bolt.svg" - related_resources: - integrations: - list: [] - info_provided_to_referring_integrations: - description: "" - keywords: - - linux - - cpu performance - - cpu cache - - perf.plugin - most_popular: false - overview: - data_collection: - metrics_description: "This collector monitors CPU performance metrics about cycles, instructions, migrations, cache operations and more." - method_description: "It uses syscall (2) to open a file descriptior to monitor the perf events." - supported_platforms: - include: - - Linux - exclude: [] - multi_instance: true - additional_permissions: - description: "It needs setuid to use necessary syscall to collect perf events. Netada sets the permission during installation time." - default_behavior: - auto_detection: - description: "" - limits: - description: "" - performance_impact: - description: "" - setup: - prerequisites: - list: - - title: Install perf plugin - description: | - If you are [using our official native DEB/RPM packages](https://github.com/netdata/netdata/blob/master/packaging/installer/UPDATE.md#determine-which-installation-method-you-used), make sure the `netdata-plugin-perf` package is installed. - - title: Enable the pref plugin - description: | - The plugin is disabled by default because the number of PMUs is usually quite limited and it is not desired to allow Netdata to struggle silently for PMUs, interfering with other performance monitoring software. - - To enable it, use `edit-config` from the Netdata [config directory](https://github.com/netdata/netdata/blob/master/docs/configure/nodes.md), which is typically at `/etc/netdata`, to edit the `netdata.conf` file. - - ```bash - cd /etc/netdata # Replace this path with your Netdata config directory, if different - sudo ./edit-config netdata.conf - ``` - - Change the value of the `perf` setting to `yes` in the `[plugins]` section. Save the file and restart the Netdata Agent with `sudo systemctl restart netdata`, or the [appropriate method](https://github.com/netdata/netdata/blob/master/docs/configure/start-stop-restart.md) for your system. - configuration: - file: - name: "netdata.conf" - section_name: "[plugin:perf]" - description: "The main netdata configuration file." - options: - description: | - You can get the available options running: - - ```bash - /usr/libexec/netdata/plugins.d/perf.plugin --help - ```` - folding: - title: "Config options" - enabled: true - list: - - name: update every - description: Data collection frequency. - default_value: 1 - required: false - - name: command options - description: Command options that specify charts shown by plugin. `cycles`, `instructions`, `branch`, `cache`, `bus`, `stalled`, `migrations`, `alignment`, `emulation`, `L1D`, `L1D-prefetch`, `L1I`, `LL`, `DTLB`, `ITLB`, `PBU`. - default_value: 1 - required: true - examples: - folding: - enabled: true - title: "Config" - list: - - name: All metrics - folding: - enabled: false - description: Monitor all metrics available. - config: | - [plugin:perf] - command options = all - - name: CPU cycles - description: Monitor CPU cycles. - config: | - [plugin:perf] - command options = cycles - troubleshooting: - problems: - list: - - name: Debug Mode - description: | - You can run `perf.plugin` with the debug option enabled, to troubleshoot issues with it. The output should give you clues as to why the collector isn't working. - - - Navigate to the `plugins.d` directory, usually at `/usr/libexec/netdata/plugins.d/`. If that's not the case on your system, open `netdata.conf` and look for the `plugins` setting under `[directories]`. - - ```bash - cd /usr/libexec/netdata/plugins.d/ - ``` - - - Switch to the `netdata` user. - - ```bash - sudo -u netdata -s - ``` - - - Run the `perf.plugin` in debug mode: - - ```bash - ./perf.plugin 1 all debug - ``` - alerts: [] - metrics: - folding: - title: Metrics - enabled: false - description: "" - availability: [] - scopes: - - name: global - description: "These metrics refer to the entire monitored application." - labels: [] - metrics: - - name: perf.cpu_cycles - description: CPU cycles - unit: "cycles/s" - chart_type: line - dimensions: - - name: cpu - - name: ref_cpu - - name: perf.instructions - description: Instructions - unit: "instructions/s" - chart_type: line - dimensions: - - name: instructions - - name: perf.instructions_per_cycle - description: Instructions per Cycle(IPC) - unit: "instructions/cycle" - chart_type: line - dimensions: - - name: ipc - - name: perf.branch_instructions - description: Branch instructions - unit: "instructions/s" - chart_type: line - dimensions: - - name: instructions - - name: misses - - name: perf.cache - description: Cache operations - unit: "operations/s" - chart_type: line - dimensions: - - name: references - - name: misses - - name: perf.bus_cycles - description: Bus cycles - unit: "cycles/s" - chart_type: line - dimensions: - - name: bus - - name: perf.stalled_cycles - description: Stalled frontend and backend cycles - unit: "cycles/s" - chart_type: line - dimensions: - - name: frontend - - name: backend - - name: perf.migrations - description: CPU migrations - unit: "migrations" - chart_type: line - dimensions: - - name: migrations - - name: perf.alignment_faults - description: Alignment faults - unit: "faults" - chart_type: line - dimensions: - - name: faults - - name: perf.emulation_faults - description: Emulation faults - unit: "faults" - chart_type: line - dimensions: - - name: faults - - name: perf.l1d_cache - description: L1D cache operations - unit: "events/s" - chart_type: line - dimensions: - - name: read_access - - name: read_misses - - name: write_access - - name: write_misses - - name: perf.l1d_cache_prefetch - description: L1D prefetch cache operations - unit: "prefetches/s" - chart_type: line - dimensions: - - name: prefetches - - name: perf.l1i_cache - description: L1I cache operations - unit: "events/s" - chart_type: line - dimensions: - - name: read_access - - name: read_misses - - name: perf.ll_cache - description: LL cache operations - unit: "events/s" - chart_type: line - dimensions: - - name: read_access - - name: read_misses - - name: write_access - - name: write_misses - - name: perf.dtlb_cache - description: DTLB cache operations - unit: "events/s" - chart_type: line - dimensions: - - name: read_access - - name: read_misses - - name: write_access - - name: write_misses - - name: perf.itlb_cache - description: ITLB cache operations - unit: "events/s" - chart_type: line - dimensions: - - name: read_access - - name: read_misses - - name: perf.pbu_cache - description: PBU cache operations - unit: "events/s" - chart_type: line - dimensions: - - name: read_access diff --git a/collectors/perf.plugin/perf_plugin.c b/collectors/perf.plugin/perf_plugin.c deleted file mode 100644 index fe3b04daa..000000000 --- a/collectors/perf.plugin/perf_plugin.c +++ /dev/null @@ -1,1342 +0,0 @@ -// SPDX-License-Identifier: GPL-3.0-or-later - -#include "libnetdata/libnetdata.h" -#include "libnetdata/required_dummies.h" - -#include <linux/perf_event.h> - -#define PLUGIN_PERF_NAME "perf.plugin" - -// Hardware counters -#define NETDATA_CHART_PRIO_PERF_CPU_CYCLES 8800 -#define NETDATA_CHART_PRIO_PERF_INSTRUCTIONS 8801 -#define NETDATA_CHART_PRIO_PERF_IPC 8802 -#define NETDATA_CHART_PRIO_PERF_BRANCH_INSTRUCTIONS 8803 -#define NETDATA_CHART_PRIO_PERF_CACHE 8804 -#define NETDATA_CHART_PRIO_PERF_BUS_CYCLES 8805 -#define NETDATA_CHART_PRIO_PERF_FRONT_BACK_CYCLES 8806 - -// Software counters -#define NETDATA_CHART_PRIO_PERF_MIGRATIONS 8810 -#define NETDATA_CHART_PRIO_PERF_ALIGNMENT 8811 -#define NETDATA_CHART_PRIO_PERF_EMULATION 8812 - -// Hardware cache counters -#define NETDATA_CHART_PRIO_PERF_L1D 8820 -#define NETDATA_CHART_PRIO_PERF_L1D_PREFETCH 8821 -#define NETDATA_CHART_PRIO_PERF_L1I 8822 -#define NETDATA_CHART_PRIO_PERF_LL 8823 -#define NETDATA_CHART_PRIO_PERF_DTLB 8824 -#define NETDATA_CHART_PRIO_PERF_ITLB 8825 -#define NETDATA_CHART_PRIO_PERF_PBU 8826 - -#define RRD_TYPE_PERF "perf" -#define RRD_FAMILY_HW "hardware" -#define RRD_FAMILY_SW "software" -#define RRD_FAMILY_CACHE "cache" - -#define NO_FD -1 -#define ALL_PIDS -1 -#define RUNNING_THRESHOLD 100 - -static int debug = 0; - -static int update_every = 1; -static int freq = 0; - -typedef enum perf_event_id { - // Hardware counters - EV_ID_CPU_CYCLES, - EV_ID_INSTRUCTIONS, - EV_ID_CACHE_REFERENCES, - EV_ID_CACHE_MISSES, - EV_ID_BRANCH_INSTRUCTIONS, - EV_ID_BRANCH_MISSES, - EV_ID_BUS_CYCLES, - EV_ID_STALLED_CYCLES_FRONTEND, - EV_ID_STALLED_CYCLES_BACKEND, - EV_ID_REF_CPU_CYCLES, - - // Software counters - // EV_ID_CPU_CLOCK, - // EV_ID_TASK_CLOCK, - // EV_ID_PAGE_FAULTS, - // EV_ID_CONTEXT_SWITCHES, - EV_ID_CPU_MIGRATIONS, - // EV_ID_PAGE_FAULTS_MIN, - // EV_ID_PAGE_FAULTS_MAJ, - EV_ID_ALIGNMENT_FAULTS, - EV_ID_EMULATION_FAULTS, - - // Hardware cache counters - EV_ID_L1D_READ_ACCESS, - EV_ID_L1D_READ_MISS, - EV_ID_L1D_WRITE_ACCESS, - EV_ID_L1D_WRITE_MISS, - EV_ID_L1D_PREFETCH_ACCESS, - - EV_ID_L1I_READ_ACCESS, - EV_ID_L1I_READ_MISS, - - EV_ID_LL_READ_ACCESS, - EV_ID_LL_READ_MISS, - EV_ID_LL_WRITE_ACCESS, - EV_ID_LL_WRITE_MISS, - - EV_ID_DTLB_READ_ACCESS, - EV_ID_DTLB_READ_MISS, - EV_ID_DTLB_WRITE_ACCESS, - EV_ID_DTLB_WRITE_MISS, - - EV_ID_ITLB_READ_ACCESS, - EV_ID_ITLB_READ_MISS, - - EV_ID_PBU_READ_ACCESS, - - EV_ID_END -} perf_event_id_t; - -enum perf_event_group { - EV_GROUP_CYCLES, - EV_GROUP_INSTRUCTIONS_AND_CACHE, - EV_GROUP_SOFTWARE, - EV_GROUP_CACHE_L1D, - EV_GROUP_CACHE_L1I_LL_DTLB, - EV_GROUP_CACHE_ITLB_BPU, - - EV_GROUP_NUM -}; - -static int number_of_cpus; - -static int *group_leader_fds[EV_GROUP_NUM]; - -static struct perf_event { - perf_event_id_t id; - - int type; - int config; - - int **group_leader_fd; - int *fd; - - int disabled; - int updated; - - uint64_t value; - - uint64_t *prev_value; - uint64_t *prev_time_enabled; - uint64_t *prev_time_running; -} perf_events[] = { - // Hardware counters - {EV_ID_CPU_CYCLES, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES, &group_leader_fds[EV_GROUP_CYCLES], NULL, 1, 0, 0, NULL, NULL, NULL}, - {EV_ID_INSTRUCTIONS, PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS, &group_leader_fds[EV_GROUP_INSTRUCTIONS_AND_CACHE], NULL, 1, 0, 0, NULL, NULL, NULL}, - {EV_ID_CACHE_REFERENCES, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_REFERENCES, &group_leader_fds[EV_GROUP_INSTRUCTIONS_AND_CACHE], NULL, 1, 0, 0, NULL, NULL, NULL}, - {EV_ID_CACHE_MISSES, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_MISSES, &group_leader_fds[EV_GROUP_INSTRUCTIONS_AND_CACHE], NULL, 1, 0, 0, NULL, NULL, NULL}, - {EV_ID_BRANCH_INSTRUCTIONS, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_INSTRUCTIONS, &group_leader_fds[EV_GROUP_INSTRUCTIONS_AND_CACHE], NULL, 1, 0, 0, NULL, NULL, NULL}, - {EV_ID_BRANCH_MISSES, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_MISSES, &group_leader_fds[EV_GROUP_INSTRUCTIONS_AND_CACHE], NULL, 1, 0, 0, NULL, NULL, NULL}, - {EV_ID_BUS_CYCLES, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BUS_CYCLES, &group_leader_fds[EV_GROUP_CYCLES], NULL, 1, 0, 0, NULL, NULL, NULL}, - {EV_ID_STALLED_CYCLES_FRONTEND, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND, &group_leader_fds[EV_GROUP_CYCLES], NULL, 1, 0, 0, NULL, NULL, NULL}, - {EV_ID_STALLED_CYCLES_BACKEND, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND, &group_leader_fds[EV_GROUP_CYCLES], NULL, 1, 0, 0, NULL, NULL, NULL}, - {EV_ID_REF_CPU_CYCLES, PERF_TYPE_HARDWARE, PERF_COUNT_HW_REF_CPU_CYCLES, &group_leader_fds[EV_GROUP_CYCLES], NULL, 1, 0, 0, NULL, NULL, NULL}, - - // Software counters - // {EV_ID_CPU_CLOCK, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_CLOCK, &group_leader_fds[EV_GROUP_SOFTWARE], NULL, 1, 0, 0, NULL, NULL, NULL}, - // {EV_ID_TASK_CLOCK, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_TASK_CLOCK, &group_leader_fds[EV_GROUP_SOFTWARE], NULL, 1, 0, 0, NULL, NULL, NULL}, - // {EV_ID_PAGE_FAULTS, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS, &group_leader_fds[EV_GROUP_SOFTWARE], NULL, 1, 0, 0, NULL, NULL, NULL}, - // {EV_ID_CONTEXT_SWITCHES, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES, &group_leader_fds[EV_GROUP_SOFTWARE], NULL, 1, 0, 0, NULL, NULL, NULL}, - {EV_ID_CPU_MIGRATIONS, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS, &group_leader_fds[EV_GROUP_SOFTWARE], NULL, 1, 0, 0, NULL, NULL, NULL}, - // {EV_ID_PAGE_FAULTS_MIN, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MIN, &group_leader_fds[EV_GROUP_SOFTWARE], NULL, 1, 0, 0, NULL, NULL, NULL}, - // {EV_ID_PAGE_FAULTS_MAJ, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MAJ, &group_leader_fds[EV_GROUP_SOFTWARE], NULL, 1, 0, 0, NULL, NULL, NULL}, - {EV_ID_ALIGNMENT_FAULTS, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_ALIGNMENT_FAULTS, &group_leader_fds[EV_GROUP_SOFTWARE], NULL, 1, 0, 0, NULL, NULL, NULL}, - {EV_ID_EMULATION_FAULTS, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS, &group_leader_fds[EV_GROUP_SOFTWARE], NULL, 1, 0, 0, NULL, NULL, NULL}, - - // Hardware cache counters - { - EV_ID_L1D_READ_ACCESS, PERF_TYPE_HW_CACHE, - (PERF_COUNT_HW_CACHE_L1D) | (PERF_COUNT_HW_CACHE_OP_READ << 8) | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), - &group_leader_fds[EV_GROUP_CACHE_L1D], NULL, 1, 0, 0, NULL, NULL, NULL - }, { - EV_ID_L1D_READ_MISS, PERF_TYPE_HW_CACHE, - (PERF_COUNT_HW_CACHE_L1D) | (PERF_COUNT_HW_CACHE_OP_READ << 8) | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16), - &group_leader_fds[EV_GROUP_CACHE_L1D], NULL, 1, 0, 0, NULL, NULL, NULL - }, { - EV_ID_L1D_WRITE_ACCESS, PERF_TYPE_HW_CACHE, - (PERF_COUNT_HW_CACHE_L1D) | (PERF_COUNT_HW_CACHE_OP_WRITE << 8) | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), - &group_leader_fds[EV_GROUP_CACHE_L1D], NULL, 1, 0, 0, NULL, NULL, NULL - }, { - EV_ID_L1D_WRITE_MISS, PERF_TYPE_HW_CACHE, - (PERF_COUNT_HW_CACHE_L1D) | (PERF_COUNT_HW_CACHE_OP_WRITE << 8) | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16), - &group_leader_fds[EV_GROUP_CACHE_L1D], NULL, 1, 0, 0, NULL, NULL, NULL - }, { - EV_ID_L1D_PREFETCH_ACCESS, PERF_TYPE_HW_CACHE, - (PERF_COUNT_HW_CACHE_L1D) | (PERF_COUNT_HW_CACHE_OP_PREFETCH << 8) | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), - &group_leader_fds[EV_GROUP_CACHE_L1D], NULL, 1, 0, 0, NULL, NULL, NULL - }, - - { - EV_ID_L1I_READ_ACCESS, PERF_TYPE_HW_CACHE, - (PERF_COUNT_HW_CACHE_L1I) | (PERF_COUNT_HW_CACHE_OP_READ << 8) | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), - &group_leader_fds[EV_GROUP_CACHE_L1I_LL_DTLB], NULL, 1, 0, 0, NULL, NULL, NULL - }, { - EV_ID_L1I_READ_MISS, PERF_TYPE_HW_CACHE, - (PERF_COUNT_HW_CACHE_L1I) | (PERF_COUNT_HW_CACHE_OP_READ << 8) | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16), - &group_leader_fds[EV_GROUP_CACHE_L1I_LL_DTLB], NULL, 1, 0, 0, NULL, NULL, NULL - }, - - { - EV_ID_LL_READ_ACCESS, PERF_TYPE_HW_CACHE, - (PERF_COUNT_HW_CACHE_LL) | (PERF_COUNT_HW_CACHE_OP_READ << 8) | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), - &group_leader_fds[EV_GROUP_CACHE_L1I_LL_DTLB], NULL, 1, 0, 0, NULL, NULL, NULL - }, { - EV_ID_LL_READ_MISS, PERF_TYPE_HW_CACHE, - (PERF_COUNT_HW_CACHE_LL) | (PERF_COUNT_HW_CACHE_OP_READ << 8) | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16), - &group_leader_fds[EV_GROUP_CACHE_L1I_LL_DTLB], NULL, 1, 0, 0, NULL, NULL, NULL - }, { - EV_ID_LL_WRITE_ACCESS, PERF_TYPE_HW_CACHE, - (PERF_COUNT_HW_CACHE_LL) | (PERF_COUNT_HW_CACHE_OP_WRITE << 8) | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), - &group_leader_fds[EV_GROUP_CACHE_L1I_LL_DTLB], NULL, 1, 0, 0, NULL, NULL, NULL - }, { - EV_ID_LL_WRITE_MISS, PERF_TYPE_HW_CACHE, - (PERF_COUNT_HW_CACHE_LL) | (PERF_COUNT_HW_CACHE_OP_WRITE << 8) | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16), - &group_leader_fds[EV_GROUP_CACHE_L1I_LL_DTLB], NULL, 1, 0, 0, NULL, NULL, NULL - }, - - { - EV_ID_DTLB_READ_ACCESS, PERF_TYPE_HW_CACHE, - (PERF_COUNT_HW_CACHE_DTLB) | (PERF_COUNT_HW_CACHE_OP_READ << 8) | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), - &group_leader_fds[EV_GROUP_CACHE_L1I_LL_DTLB], NULL, 1, 0, 0, NULL, NULL, NULL - }, { - EV_ID_DTLB_READ_MISS, PERF_TYPE_HW_CACHE, - (PERF_COUNT_HW_CACHE_DTLB) | (PERF_COUNT_HW_CACHE_OP_READ << 8) | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16), - &group_leader_fds[EV_GROUP_CACHE_L1I_LL_DTLB], NULL, 1, 0, 0, NULL, NULL, NULL - }, { - EV_ID_DTLB_WRITE_ACCESS, PERF_TYPE_HW_CACHE, - (PERF_COUNT_HW_CACHE_DTLB) | (PERF_COUNT_HW_CACHE_OP_WRITE << 8) | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), - &group_leader_fds[EV_GROUP_CACHE_L1I_LL_DTLB], NULL, 1, 0, 0, NULL, NULL, NULL - }, { - EV_ID_DTLB_WRITE_MISS, PERF_TYPE_HW_CACHE, - (PERF_COUNT_HW_CACHE_DTLB) | (PERF_COUNT_HW_CACHE_OP_WRITE << 8) | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16), - &group_leader_fds[EV_GROUP_CACHE_ITLB_BPU], NULL, 1, 0, 0, NULL, NULL, NULL - }, - - { - EV_ID_ITLB_READ_ACCESS, PERF_TYPE_HW_CACHE, - (PERF_COUNT_HW_CACHE_ITLB) | (PERF_COUNT_HW_CACHE_OP_READ << 8) | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), - &group_leader_fds[EV_GROUP_CACHE_ITLB_BPU], NULL, 1, 0, 0, NULL, NULL, NULL - }, { - EV_ID_ITLB_READ_MISS, PERF_TYPE_HW_CACHE, - (PERF_COUNT_HW_CACHE_ITLB) | (PERF_COUNT_HW_CACHE_OP_READ << 8) | (PERF_COUNT_HW_CACHE_RESULT_MISS << 16), - &group_leader_fds[EV_GROUP_CACHE_ITLB_BPU], NULL, 1, 0, 0, NULL, NULL, NULL - }, - - { - EV_ID_PBU_READ_ACCESS, PERF_TYPE_HW_CACHE, - (PERF_COUNT_HW_CACHE_BPU) | (PERF_COUNT_HW_CACHE_OP_READ << 8) | (PERF_COUNT_HW_CACHE_RESULT_ACCESS << 16), - &group_leader_fds[EV_GROUP_CACHE_ITLB_BPU], NULL, 1, 0, 0, NULL, NULL, NULL - }, - - {EV_ID_END, 0, 0, NULL, NULL, 0, 0, 0, NULL, NULL, NULL} -}; - -static int perf_init() { - int cpu, group; - struct perf_event_attr perf_event_attr; - struct perf_event *current_event = NULL; - unsigned long flags = 0; - - number_of_cpus = (int)get_system_cpus(); - - // initialize all perf event file descriptors - for(current_event = &perf_events[0]; current_event->id != EV_ID_END; current_event++) { - current_event->fd = mallocz(number_of_cpus * sizeof(int)); - memset(current_event->fd, NO_FD, number_of_cpus * sizeof(int)); - - current_event->prev_value = mallocz(number_of_cpus * sizeof(uint64_t)); - memset(current_event->prev_value, 0, number_of_cpus * sizeof(uint64_t)); - - current_event->prev_time_enabled = mallocz(number_of_cpus * sizeof(uint64_t)); - memset(current_event->prev_time_enabled, 0, number_of_cpus * sizeof(uint64_t)); - - current_event->prev_time_running = mallocz(number_of_cpus * sizeof(uint64_t)); - memset(current_event->prev_time_running, 0, number_of_cpus * sizeof(uint64_t)); - } - - for(group = 0; group < EV_GROUP_NUM; group++) { - group_leader_fds[group] = mallocz(number_of_cpus * sizeof(int)); - memset(group_leader_fds[group], NO_FD, number_of_cpus * sizeof(int)); - } - - memset(&perf_event_attr, 0, sizeof(perf_event_attr)); - - for(cpu = 0; cpu < number_of_cpus; cpu++) { - for(current_event = &perf_events[0]; current_event->id != EV_ID_END; current_event++) { - if(unlikely(current_event->disabled)) continue; - - perf_event_attr.type = current_event->type; - perf_event_attr.config = current_event->config; - perf_event_attr.read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | PERF_FORMAT_TOTAL_TIME_RUNNING; - - int fd, group_leader_fd = *(*current_event->group_leader_fd + cpu); - - fd = syscall( - __NR_perf_event_open, - &perf_event_attr, - ALL_PIDS, - cpu, - group_leader_fd, - flags - ); - - if(unlikely(group_leader_fd == NO_FD)) group_leader_fd = fd; - - if(unlikely(fd < 0)) { - switch errno { - case EACCES: - collector_error("Cannot access to the PMU: Permission denied"); - break; - case EBUSY: - collector_error("Another event already has exclusive access to the PMU"); - break; - default: - collector_error("Cannot open perf event"); - } - collector_error("Disabling event %u", current_event->id); - current_event->disabled = 1; - } - - *(current_event->fd + cpu) = fd; - *(*current_event->group_leader_fd + cpu) = group_leader_fd; - - if(unlikely(debug)) fprintf(stderr, "perf.plugin: event id = %u, cpu = %d, fd = %d, leader_fd = %d\n", current_event->id, cpu, fd, group_leader_fd); - } - } - - return 0; -} - -static void perf_free(void) { - int cpu, group; - struct perf_event *current_event = NULL; - - for(current_event = &perf_events[0]; current_event->id != EV_ID_END; current_event++) { - for(cpu = 0; cpu < number_of_cpus; cpu++) - if(*(current_event->fd + cpu) != NO_FD) close(*(current_event->fd + cpu)); - - free(current_event->fd); - free(current_event->prev_value); - free(current_event->prev_time_enabled); - free(current_event->prev_time_running); - } - - for(group = 0; group < EV_GROUP_NUM; group++) - free(group_leader_fds[group]); -} - -static void reenable_events() { - int group, cpu; - - for(group = 0; group < EV_GROUP_NUM; group++) { - for(cpu = 0; cpu < number_of_cpus; cpu++) { - int current_fd = *(group_leader_fds[group] + cpu); - - if(unlikely(current_fd == NO_FD)) continue; - - if(ioctl(current_fd, PERF_EVENT_IOC_DISABLE, PERF_IOC_FLAG_GROUP) == -1 - || ioctl(current_fd, PERF_EVENT_IOC_ENABLE, PERF_IOC_FLAG_GROUP) == -1) - { - collector_error("Cannot reenable event group"); - } - } - } -} - -static int perf_collect() { - int cpu; - struct perf_event *current_event = NULL; - static uint64_t prev_cpu_cycles_value = 0; - struct { - uint64_t value; - uint64_t time_enabled; - uint64_t time_running; - } read_result; - - for(current_event = &perf_events[0]; current_event->id != EV_ID_END; current_event++) { - current_event->updated = 0; - current_event->value = 0; - - if(unlikely(current_event->disabled)) continue; - - for(cpu = 0; cpu < number_of_cpus; cpu++) { - - ssize_t read_size = read(current_event->fd[cpu], &read_result, sizeof(read_result)); - - if(likely(read_size == sizeof(read_result))) { - if (likely(read_result.time_running - && read_result.time_running != *(current_event->prev_time_running + cpu) - && (read_result.time_enabled / read_result.time_running < RUNNING_THRESHOLD))) { - current_event->value += (read_result.value - *(current_event->prev_value + cpu)) \ - * (read_result.time_enabled - *(current_event->prev_time_enabled + cpu)) \ - / (read_result.time_running - *(current_event->prev_time_running + cpu)); - } - - *(current_event->prev_value + cpu) = read_result.value; - *(current_event->prev_time_enabled + cpu) = read_result.time_enabled; - *(current_event->prev_time_running + cpu) = read_result.time_running; - - current_event->updated = 1; - } - else { - collector_error("Cannot update value for event %u", current_event->id); - return 1; - } - } - - if(unlikely(debug)) fprintf(stderr, "perf.plugin: successfully read event id = %u, value = %"PRIu64"\n", current_event->id, current_event->value); - } - - if(unlikely(perf_events[EV_ID_CPU_CYCLES].value == prev_cpu_cycles_value)) - reenable_events(); - prev_cpu_cycles_value = perf_events[EV_ID_CPU_CYCLES].value; - - return 0; -} - -static void perf_send_metrics() { - static int // Hardware counters - cpu_cycles_chart_generated = 0, - instructions_chart_generated = 0, - ipc_chart_generated = 0, - branch_chart_generated = 0, - cache_chart_generated = 0, - bus_cycles_chart_generated = 0, - stalled_cycles_chart_generated = 0, - - // Software counters - migrations_chart_generated = 0, - alignment_chart_generated = 0, - emulation_chart_generated = 0, - - // Hardware cache counters - L1D_chart_generated = 0, - L1D_prefetch_chart_generated = 0, - L1I_chart_generated = 0, - LL_chart_generated = 0, - DTLB_chart_generated = 0, - ITLB_chart_generated = 0, - PBU_chart_generated = 0; - - // ------------------------------------------------------------------------ - - if(likely(perf_events[EV_ID_CPU_CYCLES].updated || perf_events[EV_ID_REF_CPU_CYCLES].updated)) { - if(unlikely(!cpu_cycles_chart_generated)) { - cpu_cycles_chart_generated = 1; - - printf("CHART %s.%s '' 'CPU cycles' 'cycles/s' %s '' line %d %d '' %s\n" - , RRD_TYPE_PERF - , "cpu_cycles" - , RRD_FAMILY_HW - , NETDATA_CHART_PRIO_PERF_CPU_CYCLES - , update_every - , PLUGIN_PERF_NAME - ); - printf("DIMENSION %s '' absolute 1 1\n", "cpu"); - printf("DIMENSION %s '' absolute 1 1\n", "ref_cpu"); - } - - printf( - "BEGIN %s.%s\n" - , RRD_TYPE_PERF - , "cpu_cycles" - ); - if(likely(perf_events[EV_ID_CPU_CYCLES].updated)) { - printf( - "SET %s = %lld\n" - , "cpu" - , (collected_number) perf_events[EV_ID_CPU_CYCLES].value - ); - } - if(likely(perf_events[EV_ID_REF_CPU_CYCLES].updated)) { - printf( - "SET %s = %lld\n" - , "ref_cpu" - , (collected_number) perf_events[EV_ID_REF_CPU_CYCLES].value - ); - } - printf("END\n"); - } - - // ------------------------------------------------------------------------ - - if(likely(perf_events[EV_ID_INSTRUCTIONS].updated)) { - if(unlikely(!instructions_chart_generated)) { - instructions_chart_generated = 1; - - printf("CHART %s.%s '' 'Instructions' 'instructions/s' %s '' line %d %d '' %s\n" - , RRD_TYPE_PERF - , "instructions" - , RRD_FAMILY_HW - , NETDATA_CHART_PRIO_PERF_INSTRUCTIONS - , update_every - , PLUGIN_PERF_NAME - ); - printf("DIMENSION %s '' absolute 1 1\n", "instructions"); - } - - printf( - "BEGIN %s.%s\n" - , RRD_TYPE_PERF - , "instructions" - ); - printf( - "SET %s = %lld\n" - , "instructions" - , (collected_number) perf_events[EV_ID_INSTRUCTIONS].value - ); - printf("END\n"); - } - - // ------------------------------------------------------------------------ - - if(likely(perf_events[EV_ID_INSTRUCTIONS].updated) && likely(perf_events[EV_ID_CPU_CYCLES].updated)) { - if(unlikely(!ipc_chart_generated)) { - ipc_chart_generated = 1; - - printf("CHART %s.%s '' '%s' 'instructions/cycle' %s '' line %d %d '' %s\n" - , RRD_TYPE_PERF - , "instructions_per_cycle" - , "Instructions per Cycle(IPC)" - , RRD_FAMILY_HW - , NETDATA_CHART_PRIO_PERF_IPC - , update_every - , PLUGIN_PERF_NAME - ); - printf("DIMENSION %s '' absolute 1 100\n", "ipc"); - } - - printf("BEGIN %s.%s\n" - , RRD_TYPE_PERF - , "instructions_per_cycle" - ); - - NETDATA_DOUBLE result = ((NETDATA_DOUBLE)perf_events[EV_ID_INSTRUCTIONS].value / - (NETDATA_DOUBLE)perf_events[EV_ID_CPU_CYCLES].value) * 100.0; - printf("SET %s = %lld\n" - , "ipc" - , (collected_number) result - ); - printf("END\n"); - } - - // ------------------------------------------------------------------------ - - if(likely(perf_events[EV_ID_BRANCH_INSTRUCTIONS].updated || perf_events[EV_ID_BRANCH_MISSES].updated)) { - if(unlikely(!branch_chart_generated)) { - branch_chart_generated = 1; - - printf("CHART %s.%s '' 'Branch instructions' 'instructions/s' %s '' line %d %d '' %s\n" - , RRD_TYPE_PERF - , "branch_instructions" - , RRD_FAMILY_HW - , NETDATA_CHART_PRIO_PERF_BRANCH_INSTRUCTIONS - , update_every - , PLUGIN_PERF_NAME - ); - printf("DIMENSION %s '' absolute 1 1\n", "instructions"); - printf("DIMENSION %s '' absolute 1 1\n", "misses"); - } - - printf( - "BEGIN %s.%s\n" - , RRD_TYPE_PERF - , "branch_instructions" - ); - if(likely(perf_events[EV_ID_BRANCH_INSTRUCTIONS].updated)) { - printf( - "SET %s = %lld\n" - , "instructions" - , (collected_number) perf_events[EV_ID_BRANCH_INSTRUCTIONS].value - ); - } - if(likely(perf_events[EV_ID_BRANCH_MISSES].updated)) { - printf( - "SET %s = %lld\n" - , "misses" - , (collected_number) perf_events[EV_ID_BRANCH_MISSES].value - ); - } - printf("END\n"); - } - - // ------------------------------------------------------------------------ - - if(likely(perf_events[EV_ID_CACHE_REFERENCES].updated || perf_events[EV_ID_CACHE_MISSES].updated)) { - if(unlikely(!cache_chart_generated)) { - cache_chart_generated = 1; - - printf("CHART %s.%s '' 'Cache operations' 'operations/s' %s '' line %d %d '' %s\n" - , RRD_TYPE_PERF - , "cache" - , RRD_FAMILY_HW - , NETDATA_CHART_PRIO_PERF_CACHE - , update_every - , PLUGIN_PERF_NAME - ); - printf("DIMENSION %s '' absolute 1 1\n", "references"); - printf("DIMENSION %s '' absolute 1 1\n", "misses"); - } - - printf( - "BEGIN %s.%s\n" - , RRD_TYPE_PERF - , "cache" - ); - if(likely(perf_events[EV_ID_CACHE_REFERENCES].updated)) { - printf( - "SET %s = %lld\n" - , "references" - , (collected_number) perf_events[EV_ID_CACHE_REFERENCES].value - ); - } - if(likely(perf_events[EV_ID_CACHE_MISSES].updated)) { - printf( - "SET %s = %lld\n" - , "misses" - , (collected_number) perf_events[EV_ID_CACHE_MISSES].value - ); - } - printf("END\n"); - } - - // ------------------------------------------------------------------------ - - if(likely(perf_events[EV_ID_BUS_CYCLES].updated)) { - if(unlikely(!bus_cycles_chart_generated)) { - bus_cycles_chart_generated = 1; - - printf("CHART %s.%s '' 'Bus cycles' 'cycles/s' %s '' line %d %d '' %s\n" - , RRD_TYPE_PERF - , "bus_cycles" - , RRD_FAMILY_HW - , NETDATA_CHART_PRIO_PERF_BUS_CYCLES - , update_every - , PLUGIN_PERF_NAME - ); - printf("DIMENSION %s '' absolute 1 1\n", "bus"); - } - - printf( - "BEGIN %s.%s\n" - , RRD_TYPE_PERF - , "bus_cycles" - ); - printf( - "SET %s = %lld\n" - , "bus" - , (collected_number) perf_events[EV_ID_BUS_CYCLES].value - ); - printf("END\n"); - } - - // ------------------------------------------------------------------------ - - if(likely(perf_events[EV_ID_STALLED_CYCLES_FRONTEND].updated || perf_events[EV_ID_STALLED_CYCLES_BACKEND].updated)) { - if(unlikely(!stalled_cycles_chart_generated)) { - stalled_cycles_chart_generated = 1; - - printf("CHART %s.%s '' 'Stalled frontend and backend cycles' 'cycles/s' %s '' line %d %d '' %s\n" - , RRD_TYPE_PERF - , "stalled_cycles" - , RRD_FAMILY_HW - , NETDATA_CHART_PRIO_PERF_FRONT_BACK_CYCLES - , update_every - , PLUGIN_PERF_NAME - ); - printf("DIMENSION %s '' absolute 1 1\n", "frontend"); - printf("DIMENSION %s '' absolute 1 1\n", "backend"); - } - - printf( - "BEGIN %s.%s\n" - , RRD_TYPE_PERF - , "stalled_cycles" - ); - if(likely(perf_events[EV_ID_STALLED_CYCLES_FRONTEND].updated)) { - printf( - "SET %s = %lld\n" - , "frontend" - , (collected_number) perf_events[EV_ID_STALLED_CYCLES_FRONTEND].value - ); - } - if(likely(perf_events[EV_ID_STALLED_CYCLES_BACKEND].updated)) { - printf( - "SET %s = %lld\n" - , "backend" - , (collected_number) perf_events[EV_ID_STALLED_CYCLES_BACKEND].value - ); - } - printf("END\n"); - } - - // ------------------------------------------------------------------------ - - if(likely(perf_events[EV_ID_CPU_MIGRATIONS].updated)) { - if(unlikely(!migrations_chart_generated)) { - migrations_chart_generated = 1; - - printf("CHART %s.%s '' 'CPU migrations' 'migrations' %s '' line %d %d '' %s\n" - , RRD_TYPE_PERF - , "migrations" - , RRD_FAMILY_SW - , NETDATA_CHART_PRIO_PERF_MIGRATIONS - , update_every - , PLUGIN_PERF_NAME - ); - printf("DIMENSION %s '' absolute 1 1\n", "migrations"); - } - - printf( - "BEGIN %s.%s\n" - , RRD_TYPE_PERF - , "migrations" - ); - printf( - "SET %s = %lld\n" - , "migrations" - , (collected_number) perf_events[EV_ID_CPU_MIGRATIONS].value - ); - printf("END\n"); - } - - // ------------------------------------------------------------------------ - - if(likely(perf_events[EV_ID_ALIGNMENT_FAULTS].updated)) { - if(unlikely(!alignment_chart_generated)) { - alignment_chart_generated = 1; - - printf("CHART %s.%s '' 'Alignment faults' 'faults' %s '' line %d %d '' %s\n" - , RRD_TYPE_PERF - , "alignment_faults" - , RRD_FAMILY_SW - , NETDATA_CHART_PRIO_PERF_ALIGNMENT - , update_every - , PLUGIN_PERF_NAME - ); - printf("DIMENSION %s '' absolute 1 1\n", "faults"); - } - - printf( - "BEGIN %s.%s\n" - , RRD_TYPE_PERF - , "alignment_faults" - ); - printf( - "SET %s = %lld\n" - , "faults" - , (collected_number) perf_events[EV_ID_ALIGNMENT_FAULTS].value - ); - printf("END\n"); - } - - // ------------------------------------------------------------------------ - - if(likely(perf_events[EV_ID_EMULATION_FAULTS].updated)) { - if(unlikely(!emulation_chart_generated)) { - emulation_chart_generated = 1; - - printf("CHART %s.%s '' 'Emulation faults' 'faults' %s '' line %d %d '' %s\n" - , RRD_TYPE_PERF - , "emulation_faults" - , RRD_FAMILY_SW - , NETDATA_CHART_PRIO_PERF_EMULATION - , update_every - , PLUGIN_PERF_NAME - ); - printf("DIMENSION %s '' absolute 1 1\n", "faults"); - } - - printf( - "BEGIN %s.%s\n" - , RRD_TYPE_PERF - , "emulation_faults" - ); - printf( - "SET %s = %lld\n" - , "faults" - , (collected_number) perf_events[EV_ID_EMULATION_FAULTS].value - ); - printf("END\n"); - } - - // ------------------------------------------------------------------------ - - if(likely(perf_events[EV_ID_L1D_READ_ACCESS].updated || perf_events[EV_ID_L1D_READ_MISS].updated - || perf_events[EV_ID_L1D_WRITE_ACCESS].updated || perf_events[EV_ID_L1D_WRITE_MISS].updated)) { - if(unlikely(!L1D_chart_generated)) { - L1D_chart_generated = 1; - - printf("CHART %s.%s '' 'L1D cache operations' 'events/s' %s '' line %d %d '' %s\n" - , RRD_TYPE_PERF - , "l1d_cache" - , RRD_FAMILY_CACHE - , NETDATA_CHART_PRIO_PERF_L1D - , update_every - , PLUGIN_PERF_NAME - ); - printf("DIMENSION %s '' absolute 1 1\n", "read_access"); - printf("DIMENSION %s '' absolute 1 1\n", "read_misses"); - printf("DIMENSION %s '' absolute -1 1\n", "write_access"); - printf("DIMENSION %s '' absolute -1 1\n", "write_misses"); - } - - printf( - "BEGIN %s.%s\n" - , RRD_TYPE_PERF - , "l1d_cache" - ); - if(likely(perf_events[EV_ID_L1D_READ_ACCESS].updated)) { - printf( - "SET %s = %lld\n" - , "read_access" - , (collected_number) perf_events[EV_ID_L1D_READ_ACCESS].value - ); - } - if(likely(perf_events[EV_ID_L1D_READ_MISS].updated)) { - printf( - "SET %s = %lld\n" - , "read_misses" - , (collected_number) perf_events[EV_ID_L1D_READ_MISS].value - ); - } - if(likely(perf_events[EV_ID_L1D_WRITE_ACCESS].updated)) { - printf( - "SET %s = %lld\n" - , "write_access" - , (collected_number) perf_events[EV_ID_L1D_WRITE_ACCESS].value - ); - } - if(likely(perf_events[EV_ID_L1D_WRITE_MISS].updated)) { - printf( - "SET %s = %lld\n" - , "write_misses" - , (collected_number) perf_events[EV_ID_L1D_WRITE_MISS].value - ); - } - printf("END\n"); - } - - // ------------------------------------------------------------------------ - - if(likely(perf_events[EV_ID_L1D_PREFETCH_ACCESS].updated)) { - if(unlikely(!L1D_prefetch_chart_generated)) { - L1D_prefetch_chart_generated = 1; - - printf("CHART %s.%s '' 'L1D prefetch cache operations' 'prefetches/s' %s '' line %d %d '' %s\n" - , RRD_TYPE_PERF - , "l1d_cache_prefetch" - , RRD_FAMILY_CACHE - , NETDATA_CHART_PRIO_PERF_L1D_PREFETCH - , update_every - , PLUGIN_PERF_NAME - ); - printf("DIMENSION %s '' absolute 1 1\n", "prefetches"); - } - - printf( - "BEGIN %s.%s\n" - , RRD_TYPE_PERF - , "l1d_cache_prefetch" - ); - printf( - "SET %s = %lld\n" - , "prefetches" - , (collected_number) perf_events[EV_ID_L1D_PREFETCH_ACCESS].value - ); - printf("END\n"); - } - - // ------------------------------------------------------------------------ - - if(likely(perf_events[EV_ID_L1I_READ_ACCESS].updated || perf_events[EV_ID_L1I_READ_MISS].updated)) { - if(unlikely(!L1I_chart_generated)) { - L1I_chart_generated = 1; - - printf("CHART %s.%s '' 'L1I cache operations' 'events/s' %s '' line %d %d '' %s\n" - , RRD_TYPE_PERF - , "l1i_cache" - , RRD_FAMILY_CACHE - , NETDATA_CHART_PRIO_PERF_L1I - , update_every - , PLUGIN_PERF_NAME - ); - printf("DIMENSION %s '' absolute 1 1\n", "read_access"); - printf("DIMENSION %s '' absolute 1 1\n", "read_misses"); - } - - printf( - "BEGIN %s.%s\n" - , RRD_TYPE_PERF - , "l1i_cache" - ); - if(likely(perf_events[EV_ID_L1I_READ_ACCESS].updated)) { - printf( - "SET %s = %lld\n" - , "read_access" - , (collected_number) perf_events[EV_ID_L1I_READ_ACCESS].value - ); - } - if(likely(perf_events[EV_ID_L1I_READ_MISS].updated)) { - printf( - "SET %s = %lld\n" - , "read_misses" - , (collected_number) perf_events[EV_ID_L1I_READ_MISS].value - ); - } - printf("END\n"); - } - - // ------------------------------------------------------------------------ - - if(likely(perf_events[EV_ID_LL_READ_ACCESS].updated || perf_events[EV_ID_LL_READ_MISS].updated - || perf_events[EV_ID_LL_WRITE_ACCESS].updated || perf_events[EV_ID_LL_WRITE_MISS].updated)) { - if(unlikely(!LL_chart_generated)) { - LL_chart_generated = 1; - - printf("CHART %s.%s '' 'LL cache operations' 'events/s' %s '' line %d %d '' %s\n" - , RRD_TYPE_PERF - , "ll_cache" - , RRD_FAMILY_CACHE - , NETDATA_CHART_PRIO_PERF_LL - , update_every - , PLUGIN_PERF_NAME - ); - printf("DIMENSION %s '' absolute 1 1\n", "read_access"); - printf("DIMENSION %s '' absolute 1 1\n", "read_misses"); - printf("DIMENSION %s '' absolute -1 1\n", "write_access"); - printf("DIMENSION %s '' absolute -1 1\n", "write_misses"); - } - - printf( - "BEGIN %s.%s\n" - , RRD_TYPE_PERF - , "ll_cache" - ); - if(likely(perf_events[EV_ID_LL_READ_ACCESS].updated)) { - printf( - "SET %s = %lld\n" - , "read_access" - , (collected_number) perf_events[EV_ID_LL_READ_ACCESS].value - ); - } - if(likely(perf_events[EV_ID_LL_READ_MISS].updated)) { - printf( - "SET %s = %lld\n" - , "read_misses" - , (collected_number) perf_events[EV_ID_LL_READ_MISS].value - ); - } - if(likely(perf_events[EV_ID_LL_WRITE_ACCESS].updated)) { - printf( - "SET %s = %lld\n" - , "write_access" - , (collected_number) perf_events[EV_ID_LL_WRITE_ACCESS].value - ); - } - if(likely(perf_events[EV_ID_LL_WRITE_MISS].updated)) { - printf( - "SET %s = %lld\n" - , "write_misses" - , (collected_number) perf_events[EV_ID_LL_WRITE_MISS].value - ); - } - printf("END\n"); - } - - // ------------------------------------------------------------------------ - - if(likely(perf_events[EV_ID_DTLB_READ_ACCESS].updated || perf_events[EV_ID_DTLB_READ_MISS].updated - || perf_events[EV_ID_DTLB_WRITE_ACCESS].updated || perf_events[EV_ID_DTLB_WRITE_MISS].updated)) { - if(unlikely(!DTLB_chart_generated)) { - DTLB_chart_generated = 1; - - printf("CHART %s.%s '' 'DTLB cache operations' 'events/s' %s '' line %d %d '' %s\n" - , RRD_TYPE_PERF - , "dtlb_cache" - , RRD_FAMILY_CACHE - , NETDATA_CHART_PRIO_PERF_DTLB - , update_every - , PLUGIN_PERF_NAME - ); - printf("DIMENSION %s '' absolute 1 1\n", "read_access"); - printf("DIMENSION %s '' absolute 1 1\n", "read_misses"); - printf("DIMENSION %s '' absolute -1 1\n", "write_access"); - printf("DIMENSION %s '' absolute -1 1\n", "write_misses"); - } - - printf( - "BEGIN %s.%s\n" - , RRD_TYPE_PERF - , "dtlb_cache" - ); - if(likely(perf_events[EV_ID_DTLB_READ_ACCESS].updated)) { - printf( - "SET %s = %lld\n" - , "read_access" - , (collected_number) perf_events[EV_ID_DTLB_READ_ACCESS].value - ); - } - if(likely(perf_events[EV_ID_DTLB_READ_MISS].updated)) { - printf( - "SET %s = %lld\n" - , "read_misses" - , (collected_number) perf_events[EV_ID_DTLB_READ_MISS].value - ); - } - if(likely(perf_events[EV_ID_DTLB_WRITE_ACCESS].updated)) { - printf( - "SET %s = %lld\n" - , "write_access" - , (collected_number) perf_events[EV_ID_DTLB_WRITE_ACCESS].value - ); - } - if(likely(perf_events[EV_ID_DTLB_WRITE_MISS].updated)) { - printf( - "SET %s = %lld\n" - , "write_misses" - , (collected_number) perf_events[EV_ID_DTLB_WRITE_MISS].value - ); - } - printf("END\n"); - } - - // ------------------------------------------------------------------------ - - if(likely(perf_events[EV_ID_ITLB_READ_ACCESS].updated || perf_events[EV_ID_ITLB_READ_MISS].updated)) { - if(unlikely(!ITLB_chart_generated)) { - ITLB_chart_generated = 1; - - printf("CHART %s.%s '' 'ITLB cache operations' 'events/s' %s '' line %d %d '' %s\n" - , RRD_TYPE_PERF - , "itlb_cache" - , RRD_FAMILY_CACHE - , NETDATA_CHART_PRIO_PERF_ITLB - , update_every - , PLUGIN_PERF_NAME - ); - printf("DIMENSION %s '' absolute 1 1\n", "read_access"); - printf("DIMENSION %s '' absolute 1 1\n", "read_misses"); - } - - printf( - "BEGIN %s.%s\n" - , RRD_TYPE_PERF - , "itlb_cache" - ); - if(likely(perf_events[EV_ID_ITLB_READ_ACCESS].updated)) { - printf( - "SET %s = %lld\n" - , "read_access" - , (collected_number) perf_events[EV_ID_ITLB_READ_ACCESS].value - ); - } - if(likely(perf_events[EV_ID_ITLB_READ_MISS].updated)) { - printf( - "SET %s = %lld\n" - , "read_misses" - , (collected_number) perf_events[EV_ID_ITLB_READ_MISS].value - ); - } - printf("END\n"); - } - - // ------------------------------------------------------------------------ - - if(likely(perf_events[EV_ID_PBU_READ_ACCESS].updated)) { - if(unlikely(!PBU_chart_generated)) { - PBU_chart_generated = 1; - - printf("CHART %s.%s '' 'PBU cache operations' 'events/s' %s '' line %d %d '' %s\n" - , RRD_TYPE_PERF - , "pbu_cache" - , RRD_FAMILY_CACHE - , NETDATA_CHART_PRIO_PERF_PBU - , update_every - , PLUGIN_PERF_NAME - ); - printf("DIMENSION %s '' absolute 1 1\n", "read_access"); - } - - printf( - "BEGIN %s.%s\n" - , RRD_TYPE_PERF - , "pbu_cache" - ); - printf( - "SET %s = %lld\n" - , "read_access" - , (collected_number) perf_events[EV_ID_PBU_READ_ACCESS].value - ); - printf("END\n"); - } -} - -void parse_command_line(int argc, char **argv) { - int i, plugin_enabled = 0; - - for(i = 1; i < argc ; i++) { - if(isdigit(*argv[i]) && !freq) { - int n = str2i(argv[i]); - if(n > 0 && n < 86400) { - freq = n; - continue; - } - } - else if(strcmp("version", argv[i]) == 0 || strcmp("-version", argv[i]) == 0 || strcmp("--version", argv[i]) == 0 || strcmp("-v", argv[i]) == 0 || strcmp("-V", argv[i]) == 0) { - printf("perf.plugin %s\n", VERSION); - exit(0); - } - else if(strcmp("all", argv[i]) == 0) { - struct perf_event *current_event = NULL; - - for(current_event = &perf_events[0]; current_event->id != EV_ID_END; current_event++) - current_event->disabled = 0; - - plugin_enabled = 1; - continue; - } - else if(strcmp("cycles", argv[i]) == 0) { - perf_events[EV_ID_CPU_CYCLES].disabled = 0; - perf_events[EV_ID_REF_CPU_CYCLES].disabled = 0; - plugin_enabled = 1; - continue; - } - else if(strcmp("instructions", argv[i]) == 0) { - perf_events[EV_ID_INSTRUCTIONS].disabled = 0; - plugin_enabled = 1; - continue; - } - else if(strcmp("branch", argv[i]) == 0) { - perf_events[EV_ID_BRANCH_INSTRUCTIONS].disabled = 0; - perf_events[EV_ID_BRANCH_MISSES].disabled = 0; - plugin_enabled = 1; - continue; - } - else if(strcmp("cache", argv[i]) == 0) { - perf_events[EV_ID_CACHE_REFERENCES].disabled = 0; - perf_events[EV_ID_CACHE_MISSES].disabled = 0; - plugin_enabled = 1; - continue; - } - else if(strcmp("bus", argv[i]) == 0) { - perf_events[EV_ID_BUS_CYCLES].disabled = 0; - plugin_enabled = 1; - continue; - } - else if(strcmp("stalled", argv[i]) == 0) { - perf_events[EV_ID_STALLED_CYCLES_FRONTEND].disabled = 0; - perf_events[EV_ID_STALLED_CYCLES_BACKEND].disabled = 0; - plugin_enabled = 1; - continue; - } - else if(strcmp("migrations", argv[i]) == 0) { - perf_events[EV_ID_CPU_MIGRATIONS].disabled = 0; - plugin_enabled = 1; - continue; - } - else if(strcmp("alignment", argv[i]) == 0) { - perf_events[EV_ID_ALIGNMENT_FAULTS].disabled = 0; - plugin_enabled = 1; - continue; - } - else if(strcmp("emulation", argv[i]) == 0) { - perf_events[EV_ID_EMULATION_FAULTS].disabled = 0; - plugin_enabled = 1; - continue; - } - else if(strcmp("L1D", argv[i]) == 0) { - perf_events[EV_ID_L1D_READ_ACCESS].disabled = 0; - perf_events[EV_ID_L1D_READ_MISS].disabled = 0; - perf_events[EV_ID_L1D_WRITE_ACCESS].disabled = 0; - perf_events[EV_ID_L1D_WRITE_MISS].disabled = 0; - plugin_enabled = 1; - continue; - } - else if(strcmp("L1D-prefetch", argv[i]) == 0) { - perf_events[EV_ID_L1D_PREFETCH_ACCESS].disabled = 0; - plugin_enabled = 1; - continue; - } - else if(strcmp("L1I", argv[i]) == 0) { - perf_events[EV_ID_L1I_READ_ACCESS].disabled = 0; - perf_events[EV_ID_L1I_READ_MISS].disabled = 0; - plugin_enabled = 1; - continue; - } - else if(strcmp("LL", argv[i]) == 0) { - perf_events[EV_ID_LL_READ_ACCESS].disabled = 0; - perf_events[EV_ID_LL_READ_MISS].disabled = 0; - perf_events[EV_ID_LL_WRITE_ACCESS].disabled = 0; - perf_events[EV_ID_LL_WRITE_MISS].disabled = 0; - plugin_enabled = 1; - continue; - } - else if(strcmp("DTLB", argv[i]) == 0) { - perf_events[EV_ID_DTLB_READ_ACCESS].disabled = 0; - perf_events[EV_ID_DTLB_READ_MISS].disabled = 0; - perf_events[EV_ID_DTLB_WRITE_ACCESS].disabled = 0; - perf_events[EV_ID_DTLB_WRITE_MISS].disabled = 0; - plugin_enabled = 1; - continue; - } - else if(strcmp("ITLB", argv[i]) == 0) { - perf_events[EV_ID_ITLB_READ_ACCESS].disabled = 0; - perf_events[EV_ID_ITLB_READ_MISS].disabled = 0; - plugin_enabled = 1; - continue; - } - else if(strcmp("PBU", argv[i]) == 0) { - perf_events[EV_ID_PBU_READ_ACCESS].disabled = 0; - plugin_enabled = 1; - continue; - } - else if(strcmp("debug", argv[i]) == 0) { - debug = 1; - continue; - } - else if(strcmp("-h", argv[i]) == 0 || strcmp("--help", argv[i]) == 0) { - fprintf(stderr, - "\n" - " netdata perf.plugin %s\n" - " Copyright (C) 2019 Netdata Inc.\n" - " Released under GNU General Public License v3 or later.\n" - " All rights reserved.\n" - "\n" - " This program is a data collector plugin for netdata.\n" - "\n" - " Available command line options:\n" - "\n" - " COLLECTION_FREQUENCY data collection frequency in seconds\n" - " minimum: %d\n" - "\n" - " all enable all charts\n" - "\n" - " cycles enable CPU cycles chart\n" - "\n" - " instructions enable Instructions chart\n" - "\n" - " branch enable Branch instructions chart\n" - "\n" - " cache enable Cache operations chart\n" - "\n" - " bus enable Bus cycles chart\n" - "\n" - " stalled enable Stalled frontend and backend cycles chart\n" - "\n" - " migrations enable CPU migrations chart\n" - "\n" - " alignment enable Alignment faults chart\n" - "\n" - " emulation enable Emulation faults chart\n" - "\n" - " L1D enable L1D cache operations chart\n" - "\n" - " L1D-prefetch enable L1D prefetch cache operations chart\n" - "\n" - " L1I enable L1I cache operations chart\n" - "\n" - " LL enable LL cache operations chart\n" - "\n" - " DTLB enable DTLB cache operations chart\n" - "\n" - " ITLB enable ITLB cache operations chart\n" - "\n" - " PBU enable PBU cache operations chart\n" - "\n" - " debug enable verbose output\n" - " default: disabled\n" - "\n" - " -v\n" - " -V\n" - " --version print version and exit\n" - "\n" - " -h\n" - " --help print this message and exit\n" - "\n" - " For more information:\n" - " https://github.com/netdata/netdata/tree/master/collectors/perf.plugin\n" - "\n" - , VERSION - , update_every - ); - exit(1); - } - - collector_error("ignoring parameter '%s'", argv[i]); - } - - if(!plugin_enabled){ - collector_info("no charts enabled - nothing to do."); - printf("DISABLE\n"); - exit(1); - } -} - -int main(int argc, char **argv) { - clocks_init(); - nd_log_initialize_for_external_plugins("perf.plugin"); - - parse_command_line(argc, argv); - - errno = 0; - - if(freq >= update_every) - update_every = freq; - else if(freq) - collector_error("update frequency %d seconds is too small for PERF. Using %d.", freq, update_every); - - if(unlikely(debug)) fprintf(stderr, "perf.plugin: calling perf_init()\n"); - int perf = !perf_init(); - - // ------------------------------------------------------------------------ - // the main loop - - if(unlikely(debug)) fprintf(stderr, "perf.plugin: starting data collection\n"); - - time_t started_t = now_monotonic_sec(); - - size_t iteration; - usec_t step = update_every * USEC_PER_SEC; - - heartbeat_t hb; - heartbeat_init(&hb); - for(iteration = 0; 1; iteration++) { - usec_t dt = heartbeat_next(&hb, step); - - if(unlikely(netdata_exit)) break; - - if(unlikely(debug && iteration)) - fprintf(stderr, "perf.plugin: iteration %zu, dt %"PRIu64" usec\n" - , iteration - , dt - ); - - if(likely(perf)) { - if(unlikely(debug)) fprintf(stderr, "perf.plugin: calling perf_collect()\n"); - perf = !perf_collect(); - - if(likely(perf)) { - if(unlikely(debug)) fprintf(stderr, "perf.plugin: calling perf_send_metrics()\n"); - perf_send_metrics(); - } - } - - fflush(stdout); - - // restart check (14400 seconds) - if(now_monotonic_sec() - started_t > 14400) break; - } - - collector_info("process exiting"); - perf_free(); -} |