add _posts/2024-10-15-perf-tools-01-Intel-VTune.md

hxf0223 · Oct 28, 2024 · 37e51bc · 37e51bc
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diff --git a/_posts/2024-10-15-Intel-VTune-usage-01.md → ...s/2024-10-15-perf-tools-01-Intel-VTune.md b/_posts/2024-10-15-Intel-VTune-usage-01.md → ...s/2024-10-15-perf-tools-01-Intel-VTune.md
@@ -1,5 +1,5 @@
 ---
-title: Intel VTune 配置与使用 (1)
+title: perf性能分析(1) -- Intel VTune 配置与使用(1)
 date: 2024-10-15 +0800 # 2022-01-01 13:14:15 +0800 只写日期也行；不写秒也行；这样也行 2022-03-09T00:55:42+08:00
 categories: [perf]
 tags: [perf, vtune, tbb, c++]      # TAG names should always be lowercase

diff --git a/_posts/2024-10-16-Intel-VTune-usage-02.md → ...-16-perf-tools-02-Intel-VTune-usage-02.md b/_posts/2024-10-16-Intel-VTune-usage-02.md → ...-16-perf-tools-02-Intel-VTune-usage-02.md
@@ -1,5 +1,5 @@
 ---
-title: Intel VTune 配置与使用 (2)
+title: perf性能分析(2) -- Intel VTune 配置与使用(2)
 date: 2024-10-16 +0800 # 2022-01-01 13:14:15 +0800 只写日期也行；不写秒也行；这样也行 2022-03-09T00:55:42+08:00
 categories: [perf]
 tags: [perf, vtune, tbb, c++]      # TAG names should always be lowercase

diff --git a/...24-10-20-Intel-VTune-and-perf-usage-03.md → ...tools-03-Intel-VTune-and-perf-usage-03.md b/...24-10-20-Intel-VTune-and-perf-usage-03.md → ...tools-03-Intel-VTune-and-perf-usage-03.md
@@ -1,5 +1,5 @@
 ---
-title: Intel VTune 配置与使用 (3) -- 配合 linux perf 使用
+title: perf性能分析(3) -- Intel VTune 配合 linux perf 使用
 date: 2024-10-20 +0800 # 2022-01-01 13:14:15 +0800 只写日期也行；不写秒也行；这样也行 2022-03-09T00:55:42+08:00
 categories: [perf]
 tags: [perf, vtune, tbb]      # TAG names should always be lowercase

diff --git a/_posts/2024-10-28-perf-tools-04-perf-usage.md b/_posts/2024-10-28-perf-tools-04-perf-usage.md
@@ -0,0 +1,44 @@
+---
+title: perf性能分析(4) -- linux perf 工具基本使用(1)
+date: 2024-10-28 +0800 # 2022-01-01 13:14:15 +0800 只写日期也行；不写秒也行；这样也行 2022-03-09T00:55:42+08:00
+categories: [perf]
+tags: [perf, vtune, tbb]      # TAG names should always be lowercase
+
+# 以下默认false
+math: true
+mermaid: true
+# pin: true
+---
+
+## 1. `perf stat` 基本使用 ##
+
+`perf stat` 基本功能 -- 统计：
+
+* `cycles` 数, `IPC (instructions per cycle)`
+* 分支切换次数(`branchs`), 分支预测失败次数(`branch-misses`)，以及失败比例
+* 上下文切换次数(`context switches`)，以及每秒切换次数
+* CPU迁移次数(`migrations`)，以及每秒迁移次数
+* 缺页次数(`page faults`)，以及每秒缺页次数
+
+```bash
+$ sudo perf stat -p 8460
+
+ Performance counter stats for process id '8460':
+
+      1,763,985.38 msec task-clock                       #    7.974 CPUs utilized
+             5,976      context-switches                 #    3.388 /sec
+                19      cpu-migrations                   #    0.011 /sec
+                 7      page-faults                      #    0.004 /sec
+ 5,402,549,520,366      cycles                           #    3.063 GHz
+ 1,249,986,676,725      instructions                     #    0.23  insn per cycle
+   247,349,019,761      branches                         #  140.222 M/sec
+       217,175,635      branch-misses                    #    0.09% of all branches
+
+     221.220644606 seconds time elapsed
+```
+
+## 参考资料 ##
+
+* [redhat -- Red Hat Enterprise Linux 8 监控和管理系统状态和性能](/assets/pdf/perf/perf_doc_20241028/Red_Hat_Enterprise_Linux-8-Monitoring_and_managing_system_status_and_performance-zh-CN.pdf)
+* [redhat -- 监控和管理系统状态和性能(网页版)](https://docs.redhat.com/zh_hans/documentation/red_hat_enterprise_linux/8/html/monitoring_and_managing_system_status_and_performance/index)
+* [调试技术之perf实战笔记](https://saiyn.github.io/homepage/2017/11/26/perf/)
diff --git a/...ed_Hat_Enterprise_Linux-8-Monitoring_and_managing_system_status_and_performance-zh-CN.pdf b/...ed_Hat_Enterprise_Linux-8-Monitoring_and_managing_system_status_and_performance-zh-CN.pdf