linux-kernel - Re: [RFC] mm: add support for zsmalloc and zcache

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Message-ID: <505DBF72.3000208@gmail.com>
Date:	Sat, 22 Sep 2012 15:38:58 +0200
From:	Sasha Levin <levinsasha928@...il.com>
To:	Dan Magenheimer <dan.magenheimer@...cle.com>
CC:	Mel Gorman <mgorman@...e.de>,
	Seth Jennings <sjenning@...ux.vnet.ibm.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Nitin Gupta <ngupta@...are.org>,
	Minchan Kim <minchan@...nel.org>,
	Konrad Wilk <konrad.wilk@...cle.com>,
	Xiao Guangrong <xiaoguangrong@...ux.vnet.ibm.com>,
	Robert Jennings <rcj@...ux.vnet.ibm.com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org
Subject: Re: [RFC] mm: add support for zsmalloc and zcache

On 09/22/2012 03:31 PM, Sasha Levin wrote:
> On 09/21/2012 09:14 PM, Dan Magenheimer wrote:
>>>> +#define MAX_CLIENTS 16
>>>>
>>>> Seems a bit arbitrary. Why 16?
>> Sasha Levin posted a patch to fix this but it was tied in to
>> the proposed KVM implementation, so was never merged.
>>
> 
> My patch changed the max pools per client, not the maximum amount of clients.
> That patch has already found it's way in.
> 
> (MAX_CLIENTS does look like an arbitrary number though).

btw, while we're on the subject of KVM, the implementation of tmem/kvm was
blocked due to insufficient performance caused by the lack of multi-page
ops/batching.

Are there any plans to make it better in the future?


Thanks,
Sasha

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