Commit-ID: 81cdbe0509542324ad7d3282ab67c2b6716df663
Gitweb: http://git.kernel.org/tip/81cdbe0509542324ad7d3282ab67c2b6716df663
Author: Ingo Molnar <mingo@xxxxxxx>
AuthorDate: Mon, 23 Mar 2009 22:29:50 +0100
Committer: Ingo Molnar <mingo@xxxxxxx>
CommitDate: Mon, 6 Apr 2009 09:30:30 +0200
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@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
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 8f9a303..2ab29b5 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,
--
To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
|