Messages in this thread | | | Date | Wed, 10 Apr 2013 13:24:56 +0200 | From | Ingo Molnar <> | Subject | Re: systemtap broken by removal of register_timer_hook |
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* Frank Ch. Eigler <fche@redhat.com> wrote:
> Hi - > > On Wed, Apr 03, 2013 at 02:49:53PM +0200, Frederic Weisbecker wrote: > > > Sounds good, would you like to propose a version? We are also > > interested in a timer tick event tracepoint for dynticks debugging. > > How about this? > > Author: Frank Ch. Eigler <fche@redhat.com> > Date: Wed Apr 3 10:35:21 2013 -0400 > > profiling: add profile_tick tracepoint > > Commit ba6fdda4 removed the timer_hook mechanism for modules to listen > to profiling timer ticks (without having to set up more complicated > perf mechanisms). To reduce the impact on out-of-tree users, a > TRACE_EVENT-flavoured tracepoint is added in its place. Tested with > perf and systemtap.
I'd suggest mentioning SystemTap here as the driving motivation. SystemTap triggered a generic kernel improvement here, no need to hide its identity!
Thanks,
Ingo
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