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	…
CREDITS	…
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	…
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.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