Hi,
This patchset inspires from Peterz patch in
http://marc.info/?l=linux-kernel&m=137155182121860
to make perf retain the timer tick less often, ie: only when there are freq
events
or when one throttles.
The main purpose is to make the lockup detector work with full dynticks, as I
suspect
that distros want to enable both...
You can fetch from:
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
perf/nohz
Thanks,
Frederic
---
Frederic Weisbecker (8):
perf: Fix branch stack refcount leak on callchain init failure
perf: Sanitize get_callchain_buffer()
perf: Gather event accounting code
perf: Split per cpu event accounting code
perf: Migrate per cpu event accounting
perf: Account freq events per cpu
perf: Finer grained full dynticks kick
watchdog: Remove hack to make full dynticks working
kernel/events/callchain.c | 2 +
kernel/events/core.c | 203 ++++++++++++++++++++++++++++-----------------
kernel/watchdog.c | 8 --
3 files changed, 128 insertions(+), 85 deletions(-)
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