Linux perf命令

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perf是一款集成于Linux内核(2.6+)性能分析工具。这里所用平台：RHEL6 64bit

安装：

perf是随着Linux内核(2.6+)代码一起发布的，安装很简单，默认安装没有激活TUI(text-based user interface)选项的，如果要激活TUI选项，前提是要安装newt-devel RPM包。

[root@rhel6164 ~]# rpm -qa | grep newt-develnewt-devel-0.52.11-2.el6.x86_64 #如果要激活perf的TUI选项，就要提前安装newt-devel包[root@rhel6164 ~]# cd linux-3.10.34/tools/perf/ #进入内核perf目录[root@rhel6164 perf]# make #直接编译perf[root@rhel6164 perf]# make install DESTDIR="installation_path" #不用默认安装路径，指定安装路径到“installation_path"[root@rhel6164 perf]# perf --versionperf version 3.10.34

使用：

直接在输入perf就可以看到perf的使用说明

[root@rhel6164 ~]# perf usage: perf [--version] [--help] COMMAND [ARGS] The most commonly used perf commands are:   annotate        Read perf.data (created by perf record) and display annotated code   archive         Create archive with object files with build-ids found in perf.data file   bench           General framework for benchmark suites   buildid-cache   Manage build-id cache.   buildid-list    List the buildids in a perf.data file   diff            Read two perf.data files and display the differential profile   evlist          List the event names in a perf.data file   inject          Filter to augment the events stream with additional information   kmem            Tool to trace/measure kernel memory(slab) properties   kvm             Tool to trace/measure kvm guest os   list            List all symbolic event types   lock            Analyze lock events   mem             Profile memory accesses   record          Run a command and record its profile into perf.data   report          Read perf.data (created by perf record) and display the profile   sched           Tool to trace/measure scheduler properties (latencies)   script          Read perf.data (created by perf record) and display trace output   stat            Run a command and gather performance counter statistics   test            Runs sanity tests.   timechart       Tool to visualize total system behavior during a workload   top             System profiling tool.   trace           strace inspired tool   probe           Define new dynamic tracepoints See 'perf help COMMAND' for more information on a specific command.

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