linux-kernel - Re: [PATCH 0/7] slub: Fastpath optimization (especially for RT) V1

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Message-ID: <CAAmzW4PicQ-MaFqpCGj-FN3vx4UeMY+VF_0UrF8+2_B_8kz_bQ@mail.gmail.com>
Date:	Fri, 19 Dec 2014 00:08:21 +0900
From:	Joonsoo Kim <js1304@...il.com>
To:	Christoph Lameter <cl@...ux.com>
Cc:	Joonsoo Kim <iamjoonsoo.kim@....com>, akpm@...uxfoundation.org,
	Steven Rostedt <rostedt@...dmis.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Linux Memory Management List <linux-mm@...ck.org>,
	Pekka Enberg <penberg@...nel.org>,
	Jesper Dangaard Brouer <brouer@...hat.com>
Subject: Re: [PATCH 0/7] slub: Fastpath optimization (especially for RT) V1

2014-12-18 23:57 GMT+09:00 Christoph Lameter <cl@...ux.com>:
>
> On Thu, 18 Dec 2014, Joonsoo Kim wrote:
>> > Good idea. How does this affect the !CONFIG_PREEMPT case?
>>
>> One more this_cpu_xxx makes fastpath slow if !CONFIG_PREEMPT.
>> Roughly 3~5%.
>>
>> We can deal with each cases separately although it looks dirty.
>
> Ok maybe you can come up with a solution that is as clean as possible?

Okay. Will do!

Thanks.
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