Messages in this thread | | | Date | Wed, 10 May 2023 11:03:07 +0200 (CEST) | From | Anna-Maria Behnsen <> | Subject | Re: [PATCH] timers/nohz: introduce nohz_full_aggressive |
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On Sun, 7 May 2023, Andrea Righi wrote:
> On Sun, May 07, 2023 at 10:08:52AM -0400, Steven Rostedt wrote: > > > > [ Added Anna-Maria who is doing some timer work as well ] > > > > On Sun, 7 May 2023 11:07:00 +0200 > > Andrea Righi <andrea.righi@canonical.com> wrote: > > > > Now, I think what is really happening here is that you are somewhat > > simulating the results that Anna-Maria has indirectly. That is, you > > just prevent an idle CPU from waking up to handle interrupts when not > > needed. > > > > Anna-Maria, > > > > Do you have some patches that Andrea could test with? > > > > Thanks, > > > > -- Steve > > Thanks for looking at this (and I'm happy to help Anna-Maria with any > test).
I posted v6 of the queue - but forgot to add you to cc list. Here is the current version:
https://lore.kernel.org/lkml/20230510072817.116056-1-anna-maria@linutronix.de/
I have to mention, that there is still the issue with the fair scheduler which wakes up the CPU where the process_timeout() timer was enqueued, because it assumes that context is still cache hot.
Thanks,
Anna-Maria
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