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linux-sg2042/tools/perf
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Li Zefan 079d3f6531 perf kmem: Measure kmalloc/kfree CPU ping-pong call-sites 
Show statistics for allocations and frees on different cpus:

------------------------------------------------------------------------------------------------------
Callsite                           | Total_alloc/Per | Total_req/Per   | Hit   | Ping-pong | Frag
------------------------------------------------------------------------------------------------------
 perf_event_alloc.clone.0+0         |      7504/682   |      7128/648   |     11 |        0 |  5.011%
 alloc_buffer_head+16               |       288/57    |       280/56    |      5 |        0 |  2.778%
 radix_tree_preload+51              |       296/296   |       288/288   |      1 |        0 |  2.703%
 tracepoint_add_probe+32e           |       157/31    |       154/30    |      5 |        0 |  1.911%
 do_maps_open+0                     |       796/12    |       792/12    |     66 |        0 |  0.503%
 sock_alloc_send_pskb+16e           |     23780/495   |     23744/494   |     48 |       38 |  0.151%
 anon_vma_prepare+9a                |      3744/44    |      3740/44    |     85 |        0 |  0.107%
 d_alloc+21                         |     64948/164   |     64944/164   |    396 |        0 |  0.006%
 proc_alloc_inode+23                |    262292/676   |    262288/676   |    388 |        0 |  0.002%
 create_object+28                   |    459600/200   |    459600/200   |   2298 |       71 |  0.000%
 journal_start+67                   |     14440/40    |     14440/40    |    361 |        0 |  0.000%
 get_empty_filp+df                  |     53504/256   |     53504/256   |    209 |        0 |  0.000%
 getname+2a                         |    823296/4096  |    823296/4096  |    201 |        0 |  0.000%
 seq_read+2b0                       |    544768/4096  |    544768/4096  |    133 |        0 |  0.000%
 seq_open+6d                        |     17024/128   |     17024/128   |    133 |        0 |  0.000%
 mmap_region+2e6                    |     11704/88    |     11704/88    |    133 |        0 |  0.000%
 single_open+0                      |      1072/16    |      1072/16    |     67 |        0 |  0.000%
 __alloc_skb+2e                     |     12544/256   |     12544/256   |     49 |       38 |  0.000%
 __sigqueue_alloc+4a                |      1296/144   |      1296/144   |      9 |        8 |  0.000%
 tracepoint_add_probe+6f            |        80/16    |        80/16    |      5 |        0 |  0.000%
------------------------------------------------------------------------------------------------------
...

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: linux-mm@kvack.org <linux-mm@kvack.org>
LKML-Reference: <4B0B6E9F.6020309@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
 		2009-11-24 08:49:50 +01:00
..
Documentation perf tools: Add support for breakpoint events in perf tools 2009-11-23 18:18:31 +01:00
bench perf bench: Improve sched-message.c with more comfortable output 2009-11-10 19:56:46 +01:00
util perf tools: Fix compilation on powerpc 2009-11-24 08:35:10 +01:00
.gitignore perf tools: .gitignore += perf*.html 2009-09-24 14:01:22 +02:00
CREDITS perf_counter tools: Add CREDITS file for Git contributors 2009-06-24 19:54:29 +02:00
Makefile perf: Use default compiler mode by default 2009-11-23 07:55:57 +01:00
builtin-annotate.c perf symbols: Look for vmlinux in more places 2009-11-23 19:51:48 +01:00
builtin-bench.c perf bench: Improve builtin-bench.c for more friendly output 2009-11-10 19:56:44 +01:00
builtin-buildid-list.c perf buildid-list: Always show the DSO name 2009-11-17 07:19:54 +01:00
builtin-help.c perf: Clean up trivial style issues in builtin-help.c 2009-11-03 18:37:29 +01:00
builtin-kmem.c perf kmem: Measure kmalloc/kfree CPU ping-pong call-sites 2009-11-24 08:49:50 +01:00
builtin-list.c perf list: Fix large list output by using the pager 2009-08-13 09:05:48 +02:00
builtin-probe.c perf/probes: Rename perf probe events group name 2009-11-04 13:02:47 +01:00
builtin-record.c perf record, x86: Print more intelligent error message when sampling fails 2009-11-23 09:40:13 +01:00
builtin-report.c perf symbols: Look for vmlinux in more places 2009-11-23 19:51:48 +01:00
builtin-sched.c perf symbols: Look for vmlinux in more places 2009-11-23 19:51:48 +01:00
builtin-stat.c perf stat: Do not print ratio when task-clock event is not counted 2009-11-15 15:25:50 +01:00
builtin-timechart.c perf tools: perf_header__read() shouldn't die() 2009-11-19 18:47:17 +01:00
builtin-top.c perf tools: Move graph_line and graph_dotted_line from top 2009-11-23 21:55:20 +01:00
builtin-trace.c perf symbols: Look for vmlinux in more places 2009-11-23 19:51:48 +01:00
builtin.h perf: Add 'perf kmem' tool 2009-11-20 09:51:41 +01:00
command-list.txt Merge branch 'perf/core' into perf/probes 2009-11-17 10:17:47 +01:00
design.txt perf_event: Add alignment-faults and emulation-faults software events 2009-10-28 16:13:03 +11:00
perf.c perf: Add 'perf kmem' tool 2009-11-20 09:51:41 +01:00
perf.h perf tools: Add ia64 support for tools/perf/ 2009-11-19 06:03:33 +01:00