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| author | Mandeep Singh Baines <msb@chromium.org> | 2011-05-23 07:10:23 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-05-23 11:58:59 +0200 |
| commit | 4eec42f392043063d0f019640b4ccc2a45570002 (patch) | |
| tree | 32db1c354f9c12d1275093efed8101a2bd5db232 /tools/perf | |
| parent | watchdog: Disable watchdog when thresh is zero (diff) | |
| download | linux-4eec42f392043063d0f019640b4ccc2a45570002.tar.xz linux-4eec42f392043063d0f019640b4ccc2a45570002.zip | |
watchdog: Change the default timeout and configure nmi watchdog period based on watchdog_thresh
Before the conversion of the NMI watchdog to perf event, the
watchdog timeout was 5 seconds. Now it is 60 seconds. For my
particular application, netbooks, 5 seconds was a better
timeout. With a short timeout, we catch faults earlier and are
able to send back a panic. With a 60 second timeout, the user is
unlikely to wait and will instead hit the power button, causing
us to lose the panic info.
This change configures the NMI period to watchdog_thresh and
sets the softlockup_thresh to watchdog_thresh * 2. In addition,
watchdog_thresh was reduced to 10 seconds as suggested by Ingo
Molnar.
Signed-off-by: Mandeep Singh Baines <msb@chromium.org>
Cc: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/1306127423-3347-4-git-send-email-msb@chromium.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
LKML-Reference: <20110517071642.GF22305@elte.hu>
Diffstat (limited to 'tools/perf')
0 files changed, 0 insertions, 0 deletions