centos 安装execsnoop cachestat等性能分

下载git代码

git clone --depth 1 https://github.com/brendangregg/perf-tools

使用cachestat

[root@i-ifgwrq7g ~]# ./perf-tools/bin/cachestat 
Counting cache functions... Output every 1 seconds.
    HITS   MISSES  DIRTIES    RATIO   BUFFERS_MB   CACHE_MB
     232      225        2    50.8%            0        174
     428        5        0    98.8%            0        175
     433        0        0   100.0%            0        175
    2496      872        2    74.1%            0        175
     323        5        0    98.5%            0        176
     327        2        5    99.4%            0        176
     303      148        2    67.2%            0        174
     323        5        0    98.5%            0        175
     328        0        0   100.0%            0        175
     339      194        3    63.6%            0        174
     428        5        0    98.8%            0        175
     426        0       13   100.0%            0        175
     304      148        2    67.3%            0        174
    2833      512        0    84.7%            0        177
     328        0        0   100.0%            0        177
     305      148        2    67.3%            0        174
^C     416        5        0    98.8%            0        175

使用execsnoop

[root@i-ifgwrq7g ~]# ./perf-tools/bin/execsnoop 
Tracing exec()s. Ctrl-C to end.
Instrumenting sys_execve
   PID   PPID ARGS
   578    576 cat -v trace_pipe
   577    573 gawk -v o=1 -v opt_name=0 -v name= -v opt_duration=0 [...]

帮助文档目录 /perf-tools/man/man8

[root@i-ifgwrq7g man8]# ll
total 96
-rw-r--r-- 1 root root 2457 Feb  1 16:44 bitesize.8
-rw-r--r-- 1 root root 3839 Feb  1 16:44 cachestat.8
-rw-r--r-- 1 root root 3497 Feb  1 16:44 execsnoop.8
-rw-r--r-- 1 root root 2094 Feb  1 16:44 funccount.8
-rw-r--r-- 1 root root 6010 Feb  1 16:44 funcgraph.8
-rw-r--r-- 1 root root 4190 Feb  1 16:44 funcslower.8
-rw-r--r-- 1 root root 3922 Feb  1 16:44 functrace.8
-rw-r--r-- 1 root root 3656 Feb  1 16:44 iolatency.8
-rw-r--r-- 1 root root 5856 Feb  1 16:44 iosnoop.8
-rw-r--r-- 1 root root 2944 Feb  1 16:44 killsnoop.8
-rw-r--r-- 1 root root 5394 Feb  1 16:44 kprobe.8
-rw-r--r-- 1 root root 3194 Feb  1 16:44 opensnoop.8
-rw-r--r-- 1 root root 3920 Feb  1 16:44 perf-stat-hist.8
-rw-r--r-- 1 root root 1292 Feb  1 16:44 reset-ftrace.8
-rw-r--r-- 1 root root 2599 Feb  1 16:44 syscount.8
-rw-r--r-- 1 root root 2773 Feb  1 16:44 tcpretrans.8
-rw-r--r-- 1 root root 4136 Feb  1 16:44 tpoint.8
-rw-r--r-- 1 root root 6048 Feb  1 16:44 uprobe.8
[root@i-ifgwrq7g man8]# pwd
/root/perf-tools/man/man8