On Thu, Feb 27, 2014 at 01:17:07PM +0100, Ingo Molnar wrote: > > * Frederic Weisbecker <fweis...@gmail.com> wrote: > > > Ingo, > > > > Please pull the timers/core branch that can be found at: > > > > git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git > > timers/core > > --- > > > > * The patch from Viresh removes some unecessary scheduler IPIs that wake > > up the CPUs when deferrable timers are enqueued on remote targets. > > > > In practice I have seen on boot some of these IPIs from various > > sources: MCE, vmstat/SLAB, cpufreq. They happen either on initcall > > or cpu hotplug. Since these timers are enqueued on all CPUs, there > > are some potential big rounds of IPIs that are spared with this patch. > > > > But it's just what I've seen on my own machine on boot. I expect some > > more scenarios where a few IPIs will be avoided depending on configs > > and usecases because we have some more users of deferrable timers. > > > > * Kconfig text made clearer for full dynticks by Paul Gortmaker. > > > > Thanks, > > Frederic > > --- > > > > Paul Gortmaker (1): > > nohz: ensure users are aware boot CPU is not NO_HZ_FULL > > > > Viresh Kumar (1): > > timer: Spare IPI when deferrable timer is queued on idle remote > > targets > > > > > > kernel/time/Kconfig | 2 +- > > kernel/timer.c | 9 ++++++++- > > 2 files changed, 9 insertions(+), 2 deletions(-) > > So I wanted to pull this fine set of commits, just to discover that > Thomas already pulled it into timers/core :-)
Ah! Now I understand why it was pulled silently in the evening ;) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
