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| author | Frederic Weisbecker <fweisbec@gmail.com> | 2009-06-13 00:11:22 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-06-13 12:58:23 +0200 |
| commit | 971738f3669092dd247eaf89658f2685180492a0 (patch) | |
| tree | 3b338afa8ecac80564769e0d6881e87b4587a2d3 /kernel/perf_counter.c | |
| parent | 301406b9c69e4914cf45ae9d5f929e7bcf0d93cd (diff) | |
perf annotate: Print a sorted summary of annotated overhead lines
It's can be very annoying to scroll down perf annotated output
until we find relevant overhead.
Using the -l option, you can now have a small summary sorted per
overhead in the beginning of the output.
Example:
./perf annotate -l -k ../../vmlinux -s __lock_acquire
Sorted summary for file ../../vmlinux
----------------------------------------------
12.04 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:1653
4.61 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:1740
3.77 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:1775
3.56 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:1653
2.93 /home/fweisbec/linux/linux-2.6-tip/arch/x86/include/asm/irqflags.h:15
2.83 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:2545
2.30 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:2594
2.20 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:2388
2.20 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:730
2.09 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:730
2.09 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:138
1.88 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:2548
1.47 /home/fweisbec/linux/linux-2.6-tip/arch/x86/include/asm/irqflags.h:15
1.36 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:2594
1.36 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:730
1.26 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:1654
1.26 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:1653
1.15 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:2592
1.15 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:1740
1.15 /home/fweisbec/linux/linux-2.6-tip/kernel/lockdep.c:1740
[...]
Only overhead over 0.5% are summarized.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1244844682-12928-2-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/perf_counter.c')
0 files changed, 0 insertions, 0 deletions