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From: Mike Snitzer <snitzer@redhat.com>
To: Mikulas Patocka <mpatocka@redhat.com>
Cc: dm-devel@redhat.com
Subject: Re: shared snapshots release 17
Date: Mon, 22 Mar 2010 15:31:03 -0400	[thread overview]
Message-ID: <20100322193102.GA13346@redhat.com> (raw)
In-Reply-To: <Pine.LNX.4.64.1003221513150.15382@hs20-bc2-1.build.redhat.com>

On Mon, Mar 22 2010 at  3:18pm -0400,
Mikulas Patocka <mpatocka@redhat.com> wrote:

> Hi
> 
> New shared snapshots are here.

http://people.redhat.com/mpatocka/patches/kernel/new-snapshots/r17/

> It incorporates Mike's changes and it has 
> reworked memory limit:
> - a minimum of 8 buffers is guaranteed to prevent thrasing with too big 
> chunk sizes
> - the cache for multisnapshots is limited to 2% of memory or 25% of 
> vmalloc memory (whichever is lower) [ I'm thinking about making this 
> configurable in /proc ]
> - big chunk sizes (8MB or more) allocate memory always from vmalloc, there 
> is no point in allocating from general allocator

Thanks, I'll have a look.

Mike

  reply	other threads:[~2010-03-22 19:31 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-22 19:18 [PATCHES] shared snapshots release 17 Mikulas Patocka
2010-03-22 19:31 ` Mike Snitzer [this message]
2010-03-22 20:54 ` Mike Snitzer
2010-03-22 22:33   ` Mike Snitzer
2010-03-27  0:36     ` Mikulas Patocka
2010-03-26 14:35   ` Mikulas Patocka
2010-03-26 16:13     ` Mike Snitzer
2010-03-27  0:35 ` [PATCHES] shared snapshots release 18 Mikulas Patocka

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