linux-kernel - Re: [RFC] stating: ion: use hot page first in pool

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Date:	Wed, 29 Oct 2014 10:00:22 -0700
From:	Laura Abbott <lauraa@...eaurora.org>
To:	Gioh Kim <gioh.kim@....com>, gregkh@...uxfoundation.org,
	john.stultz@...aro.org, rebecca@...roid.com,
	dan.carpenter@...cle.com, Minchan Kim <minchan@...nel.org>,
	'김준수' <iamjoonsoo.kim@....com>
CC:	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	gunho.lee@....com
Subject: Re: [RFC] stating: ion: use hot page first in pool

On 10/28/2014 9:57 PM, Gioh Kim wrote:
> 
> Hello,
> 
> I found that ion insert freed-page at the tail of list
> and extract at the head.
> 
> I think it is good for cache to use the most recently used page
> but these pages in pool are not cached memory.
> So I'm not sure using hot page is better or not in this case.
> 
> What do you think about using hot page first?
> 

This is something that really needs data collection and
benchmarks to see if there is actually an improvement or not.

Thanks,
Laura



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