diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-03-23 22:29:50 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-04-06 09:30:30 +0200 |
| commit | 81cdbe0509542324ad7d3282ab67c2b6716df663 (patch) | |
| tree | 13e214fe248d6dc9fcfee585649d7b24bf3cf468 /Documentation | |
| parent | 193e8df1b465f206f8a286202680702e1c153367 (diff) | |
perf_counter tools: increase cpu-cycles again
Commit b7368fdd7d decreased the CPU cycles interval 100-fold, but
this is causig kerneltop failures on my Nehalem box:
aldebaran:/home/mingo/linux/linux/Documentation/perf_counter>
./kerneltop
KernelTop refresh period: 2 seconds
ERROR: failed to keep up with mmap data
10,000 cycles is way too short.
What we should do instead on mostly-idle systems is some sort of
read/poll timeout, so that we display something every 2 seconds
for sure.
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/perf_counter/kerneltop.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/perf_counter/kerneltop.c b/Documentation/perf_counter/kerneltop.c index 8f9a303f28d..2ab29b5e32e 100644 --- a/Documentation/perf_counter/kerneltop.c +++ b/Documentation/perf_counter/kerneltop.c @@ -212,7 +212,7 @@ struct source_line { const unsigned int default_count[] = { - 10000, + 1000000, 1000000, 10000, 10000, |