Re: [RT LATENCY] 249 microsecond latency caused by slub'sunfreeze_partials() code.

From: Steven Rostedt
Date: Thu Apr 11 2013 - 12:05:19 EST


On Thu, 2013-03-28 at 17:30 +0000, Christoph Lameter wrote:
> This patch requires the earlier bug fix.
>
>
> Subject: slub: Make cpu partial slab support configurable
>
> cpu partial support can introduce level of indeterminism that is not wanted
> in certain context (like a realtime kernel). Make it configurable.
>
> Signed-off-by: Christoph Lameter <cl@xxxxxxxxx>
>

Hi Christoph,

I was wondering if you made any more forward progress with with patch
yet. When it goes into mainline, I'd like to backport it to the -rt
stable trees, and will probably make it enabled by default when
PREEMPT_RT is enabled.

Thanks!

-- Steve


--
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/