From: Andi Kleen <andi@firstfloor.org>
To: Chris Mason <chris.mason@oracle.com>
Cc: Andi Kleen <andi@firstfloor.org>,
Peter Zijlstra <peterz@infradead.org>,
linux-btrfs <linux-btrfs@vger.kernel.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
linux-fsdevel <linux-fsdevel@vger.kernel.org>
Subject: Re: Btrfs v0.16 released
Date: Thu, 14 Aug 2008 23:17:56 +0200 [thread overview]
Message-ID: <20080814211756.GC13814@one.firstfloor.org> (raw)
In-Reply-To: <1218747656.15342.439.camel@think.oraclecorp.com>
On Thu, Aug 14, 2008 at 05:00:56PM -0400, Chris Mason wrote:
> Btrfs defaults 57.41 MB/s
> Btrfs dup no csum 74.59 MB/s
With duplications checksums seem to be quite costly (CPU bound?)
> Btrfs no duplication 76.83 MB/s
> Btrfs no dup no csum no inline 76.85 MB/s
But without duplication they are basically free here at least
in IO rate. Seems odd?
Does it compute them twice in the duplication case perhaps?
-Andi
next prev parent reply other threads:[~2008-08-14 21:17 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-05 19:01 Btrfs v0.16 released Chris Mason
2008-08-07 9:08 ` Peter Zijlstra
2008-08-07 10:34 ` Chris Mason
2008-08-07 14:58 ` Chris Friesen
2008-08-07 15:07 ` tvrtko.ursulin
2008-08-07 9:14 ` Peter Zijlstra
2008-08-07 10:39 ` Chris Mason
[not found] ` <3da3b5b40808070703x4cf49471q6acc00351ba019d7@mail.gmail.com>
2008-08-07 14:06 ` Chris Mason
2008-08-07 18:02 ` Andi Kleen
2008-08-08 18:48 ` Chris Mason
2008-08-08 21:56 ` Andi Kleen
2008-08-09 1:19 ` Theodore Tso
2008-08-09 1:23 ` Andi Kleen
2008-08-09 1:23 ` Andi Kleen
2008-08-09 1:43 ` Theodore Tso
2008-08-09 1:23 ` Andi Kleen
2008-08-14 21:00 ` Chris Mason
2008-08-14 21:17 ` Andi Kleen [this message]
2008-08-15 1:25 ` Chris Mason
2008-08-15 1:39 ` Andi Kleen
2008-08-15 13:00 ` Chris Mason
2008-08-16 19:26 ` Szabolcs Szakacsits
2008-08-18 13:52 ` Chris Mason
2008-08-18 17:37 ` Szabolcs Szakacsits
2008-08-14 23:44 ` Theodore Tso
2008-08-15 1:10 ` Chris Mason
2008-08-15 12:46 ` Chris Mason
2008-08-15 13:45 ` Theodore Tso
2008-08-15 17:52 ` Chris Mason
2008-08-15 19:59 ` Theodore Tso
2008-08-15 20:37 ` Chris Mason
2008-08-16 18:10 ` Chris Mason
2008-08-16 19:27 ` Theodore Tso
-- strict thread matches above, loose matches on Subject: below --
2008-08-07 19:33 btrfs-devel
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