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1 | perf-lock(1) |
2 | ============ |
3 | |
4 | NAME |
5 | ---- |
6 | perf-lock - Analyze lock events |
7 | |
8 | SYNOPSIS |
9 | -------- |
10 | [verse] |
11 | 'perf lock' {record|report|script|info} |
12 | |
13 | DESCRIPTION |
14 | ----------- |
15 | You can analyze various lock behaviours |
16 | and statistics with this 'perf lock' command. |
17 | |
18 | 'perf lock record <command>' records lock events |
19 | between start and end <command>. And this command |
20 | produces the file "perf.data" which contains tracing |
21 | results of lock events. |
22 | |
23 | 'perf lock report' reports statistical data. |
24 | |
25 | 'perf lock script' shows raw lock events. |
26 | |
27 | 'perf lock info' shows metadata like threads or addresses |
28 | of lock instances. |
29 | |
30 | COMMON OPTIONS |
31 | -------------- |
32 | |
33 | -i:: |
34 | --input=<file>:: |
35 | Input file name. (default: perf.data unless stdin is a fifo) |
36 | |
37 | -v:: |
38 | --verbose:: |
39 | Be more verbose (show symbol address, etc). |
40 | |
41 | -D:: |
42 | --dump-raw-trace:: |
43 | Dump raw trace in ASCII. |
44 | |
45 | REPORT OPTIONS |
46 | -------------- |
47 | |
48 | -k:: |
49 | --key=<value>:: |
50 | Sorting key. Possible values: acquired (default), contended, |
51 | wait_total, wait_max, wait_min. |
52 | |
53 | INFO OPTIONS |
54 | ------------ |
55 | |
56 | -t:: |
57 | --threads:: |
58 | dump thread list in perf.data |
59 | |
60 | -m:: |
61 | --map:: |
62 | dump map of lock instances (address:name table) |
63 | |
64 | SEE ALSO |
65 | -------- |
66 | linkperf:perf[1] |
67 |
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