Linux/Android 效能最佳化工具 perf

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/***************************************************************************** *                     Linux/Android 效能最佳化工具 perf * 說明： *     之前一直在找Android上的效能最佳化工具，但是一直不知道應該找哪方面的關鍵字， * 今天在看Android原始碼目錄的時候看到linux-tools-perf，查了點相關資料，最後 * 發現這好像就是我一直在找的查看系統效能的工具，目前沒有驗證任何東西，先記錄 * 下這些東西。 * *                                          2016-06-06 深圳 南山平山村 曾劍鋒 ****************************************************************************/一、參考文章：    Linux 效能最佳化工具 perf top        http://www.68idc.cn/help/server/linux/20151119591702.html     Perf -- Linux下的系統效能調優工具，第 2 部分        http://www.ibm.com/developerworks/cn/linux/l-cn-perf2/index.html二、Android perf源碼目錄情況：    [email protected]:~/myandroid/external$ ls -al linux-tools-perf     total 564    drwxrwxr-x  12 myzr myzr  4096 Jun  6 11:05 .    drwxrwxr-x 171 myzr myzr  4096 Mar 31 10:32 ..    -rw-rw-r--   1 myzr myzr  6083 Apr 11  2014 Android.mk    -rw-rw-r--   1 myzr myzr 42956 Apr 11  2014 android.patch    drwxrwxr-x   8 myzr myzr  4096 Apr 30  2013 arch    drwxrwxr-x   2 myzr myzr  4096 Apr 11  2014 bench    -rw-rw-r--   1 myzr myzr  7607 Apr 11  2014 builtin-annotate.c    -rw-rw-r--   1 myzr myzr  4952 Apr 11  2014 builtin-bench.c    -rw-rw-r--   1 myzr myzr  3225 Apr 11  2014 builtin-buildid-cache.c    -rw-rw-r--   1 myzr myzr  1508 Apr 11  2014 builtin-buildid-list.c    -rw-rw-r--   1 myzr myzr  6473 Apr 11  2014 builtin-diff.c    -rw-rw-r--   1 myzr myzr  1249 Apr 11  2014 builtin-evlist.c    -rw-rw-r--   1 myzr myzr  2045 Apr 11  2014 builtin.h    -rw-rw-r--   1 myzr myzr 11439 Apr 11  2014 builtin-help.c    -rw-rw-r--   1 myzr myzr  5702 Apr 11  2014 builtin-inject.c    -rw-rw-r--   1 myzr myzr 17676 Apr 11  2014 builtin-kmem.c    -rw-rw-r--   1 myzr myzr  3746 Apr 11  2014 builtin-kvm.c    -rw-rw-r--   1 myzr myzr  1387 Apr 11  2014 builtin-list.c    -rw-rw-r--   1 myzr myzr 23756 Apr 11  2014 builtin-lock.c    -rw-rw-r--   1 myzr myzr 11159 Apr 11  2014 builtin-probe.c    -rw-rw-r--   1 myzr myzr 23259 Apr 11  2014 builtin-record.c    -rw-rw-r--   1 myzr myzr 14754 Apr 11  2014 builtin-report.c    -rw-rw-r--   1 myzr myzr 45433 Apr 11  2014 builtin-sched.c    -rw-rw-r--   1 myzr myzr 28629 Apr 11  2014 builtin-script.c    -rw-rw-r--   1 myzr myzr 33129 Apr 11  2014 builtin-stat.c    -rw-rw-r--   1 myzr myzr 16940 Apr 11  2014 builtin-test.c    -rw-rw-r--   1 myzr myzr 24003 Apr 11  2014 builtin-timechart.c    -rw-rw-r--   1 myzr myzr 29062 Apr 11  2014 builtin-top.c    -rw-rw-r--   1 myzr myzr  2599 Apr 11  2014 CleanSpec.mk    -rw-rw-r--   1 myzr myzr   814 Apr 11  2014 command-list.txt    -rw-rw-r--   1 myzr myzr  1536 Apr 11  2014 common-cmds.h    drwxrwxr-x   2 myzr myzr  4096 Apr 11  2014 config    -rw-rw-r--   1 myzr myzr   603 Apr 11  2014 CREDITS    -rw-rw-r--   1 myzr myzr 17723 Apr 11  2014 design.txt    drwxrwxr-x   2 myzr myzr  4096 Apr 11  2014 Documentation    drwxrwxr-x   2 myzr myzr  4096 Apr 11  2014 .git    drwxrwxr-x   2 myzr myzr  4096 Apr 11  2014 host-darwin-fixup    drwxrwxr-x   2 myzr myzr  4096 Apr 11  2014 host-linux-fixup    -rw-rw-r--   1 myzr myzr 29895 Apr 11  2014 Makefile    -rw-rw-r--   1 myzr myzr   288 Apr 11  2014 MANIFEST    -rw-rw-r--   1 myzr myzr    29 Apr 11  2014 mm.c    -rw-rw-r--   1 myzr myzr  1229 Apr 11  2014 perf-archive.sh    -rw-rw-r--   1 myzr myzr 12418 Apr 11  2014 perf.c    -rw-rw-r--   1 myzr myzr   536 Apr 11  2014 PERF-CFLAGS    -rw-rw-r--   1 myzr myzr  4880 Apr 11  2014 perf.h    -rw-rw-r--   1 myzr myzr    21 Apr 11  2014 PERF-VERSION-FILE    drwxrwxr-x   2 myzr myzr  4096 Apr 11  2014 python    drwxrwxr-x   4 myzr myzr  4096 Apr 30  2013 scripts    drwxrwxr-x   6 myzr myzr  4096 Apr 11  2014 util    [email protected]:~/myandroid/external$ 三、Android perf    [email protected]:/ # 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       probe           Define new dynamic tracepoints       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.     See ‘perf help COMMAND‘ for more information on a specific command.    [email protected]:/ # perf --version                                                perf version perf.3.0.8_android    [email protected]:/ # 

 

Linux/Android 效能最佳化工具 perf