From: "H. Peter Anvin" <hpa@zytor.com>
To: Mike Fedyk <mfedyk@matchmail.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: New RAID-6 snapshot
Date: Tue, 30 Dec 2003 10:35:53 -0800 [thread overview]
Message-ID: <3FF1C589.3070906@zytor.com> (raw)
In-Reply-To: <20031230172420.GS1882@matchmail.com>
Mike Fedyk wrote:
> On Tue, Dec 30, 2003 at 03:34:28AM -0800, H. Peter Anvin wrote:
>
>>Well, I implemented read-modify-write for RAID-6, and at least on my
>>6-disk system it was a small but measurable performance *loss*.
>
> What was your previous patch doing instead?
The published snapshots (including the latest, since I backed out
read-modify-write) all do read-reconstruct-write.
-hpa
next prev parent reply other threads:[~2003-12-30 18:35 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-30 11:34 New RAID-6 snapshot H. Peter Anvin
2003-12-30 17:24 ` Mike Fedyk
2003-12-30 18:35 ` H. Peter Anvin [this message]
2003-12-30 18:43 ` Mike Fedyk
2003-12-30 18:51 ` H. Peter Anvin
2003-12-30 18:58 ` Mike Fedyk
2003-12-30 19:22 ` H. Peter Anvin
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