| Li Zefan | b23d576 | 2009-11-24 13:27:11 +0800 | [diff] [blame] | 1 | perf-kmem(1) |
| 2 | ============== |
| 3 | |
| 4 | NAME |
| 5 | ---- |
| 6 | perf-kmem - Tool to trace/measure kernel memory(slab) properties |
| 7 | |
| 8 | SYNOPSIS |
| 9 | -------- |
| 10 | [verse] |
| Li Zefan | 90b86a9 | 2009-12-10 15:21:57 +0800 | [diff] [blame] | 11 | 'perf kmem' {record|stat} [<options>] |
| Li Zefan | b23d576 | 2009-11-24 13:27:11 +0800 | [diff] [blame] | 12 | |
| 13 | DESCRIPTION |
| 14 | ----------- |
| Li Zefan | 90b86a9 | 2009-12-10 15:21:57 +0800 | [diff] [blame] | 15 | There are two variants of perf kmem: |
| Li Zefan | b23d576 | 2009-11-24 13:27:11 +0800 | [diff] [blame] | 16 | |
| 17 | 'perf kmem record <command>' to record the kmem events |
| 18 | of an arbitrary workload. |
| 19 | |
| Li Zefan | 90b86a9 | 2009-12-10 15:21:57 +0800 | [diff] [blame] | 20 | 'perf kmem stat' to report kernel memory statistics. |
| Li Zefan | b23d576 | 2009-11-24 13:27:11 +0800 | [diff] [blame] | 21 | |
| 22 | OPTIONS |
| 23 | ------- |
| 24 | -i <file>:: |
| 25 | --input=<file>:: |
| 26 | Select the input file (default: perf.data) |
| 27 | |
| Li Zefan | 90b86a9 | 2009-12-10 15:21:57 +0800 | [diff] [blame] | 28 | --caller:: |
| 29 | Show per-callsite statistics |
| 30 | |
| 31 | --alloc:: |
| 32 | Show per-allocation statistics |
| Li Zefan | b23d576 | 2009-11-24 13:27:11 +0800 | [diff] [blame] | 33 | |
| 34 | -s <key[,key2...]>:: |
| 35 | --sort=<key[,key2...]>:: |
| 36 | Sort the output (default: frag,hit,bytes) |
| 37 | |
| 38 | -l <num>:: |
| 39 | --line=<num>:: |
| 40 | Print n lines only |
| 41 | |
| 42 | --raw-ip:: |
| 43 | Print raw ip instead of symbol |
| 44 | |
| 45 | SEE ALSO |
| 46 | -------- |
| 47 | linkperf:perf-record[1] |