Re: [PATCH v2 2/3] sched/fair: Move hot load_avg into its own cacheline

[Mike Galbraith]

On Wed, 2015-12-02 at 13:41 -0500, Waiman Long wrote:

> By doing so, the perf profile became:
> 
>    9.44%   0.00%  java   [kernel.vmlinux]  [k] smp_apic_timer_interrupt
>    8.74%   0.01%  java   [kernel.vmlinux]  [k] hrtimer_interrupt
>    7.83%   0.03%  java   [kernel.vmlinux]  [k] tick_sched_timer
>    7.74%   0.00%  java   [kernel.vmlinux]  [k] update_process_times
>    7.27%   0.03%  java   [kernel.vmlinux]  [k] scheduler_tick
>    5.94%   1.74%  java   [kernel.vmlinux]  [k] task_tick_fair
>    4.15%   3.92%  java   [kernel.vmlinux]  [k] update_cfs_shares
> 
> The %cpu time is still pretty high, but it is better than before.

Is that with the box booted skew_tick=1?

	-Mike

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/