linux-kernel - Re: [PATCH 0/9] re-shrink 'struct page' when SLUB is on.

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Message-ID: <52D0854F.5060102@sr71.net>
Date:	Fri, 10 Jan 2014 15:42:07 -0800
From:	Dave Hansen <dave@...1.net>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	Joonsoo Kim <iamjoonsoo.kim@....com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, penberg@...nel.org,
	cl@...ux-foundation.org
Subject: Re: [PATCH 0/9] re-shrink 'struct page' when SLUB is on.

On 01/10/2014 03:39 PM, Andrew Morton wrote:
>> I tested 4 cases, all of these on the "cache-cold kfree()" case.  The
>> first 3 are with vanilla upstream kernel source.  The 4th is patched
>> with my new slub code (all single-threaded):
>>
>> 	http://www.sr71.net/~dave/intel/slub/slub-perf-20140109.png
> 
> So we're converging on the most complex option.  argh.

Yeah, looks that way.

> So all this testing was performed in a VM?  If so, how much is that
> likely to have impacted the results?

Nope, none of it was in a VM.  All the results here are from bare-metal.


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