Re: [PATCH] sched: select 'idle' cfs_rq per task-group to prevent tg-internal imbalance

From: Michael wang
Date: Tue Jul 01 2014 - 04:39:17 EST


On 07/01/2014 04:20 PM, Peter Zijlstra wrote:
[snip]
>>
>> Just wondering could we make this another scheduler feature?
>
> No; sched_feat() is for debugging, BIG CLUE: its guarded by
> CONFIG_SCHED_DEBUG, anybody using it in production or anywhere else is
> broken.
>
> If people are using it, I should remove or at least randomize the
> interface.

Fair enough... but is there any suggestions on how to handle this issue?

Currently when dbench running with stress, it could only gain one CPU,
and cpu-cgroup cpu.shares is meaningless, is there any good methods to
address that?

Regards,
Michael Wang

>

--
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/