From: Asdo <asdo@shiftmail.org>
To: xfs@oss.sgi.com
Cc: linux-raid <linux-raid@vger.kernel.org>
Subject: Re: Disappointing performance of copy (MD raid + XFS)
Date: Thu, 10 Dec 2009 01:57:39 +0100 [thread overview]
Message-ID: <4B204783.7040109@shiftmail.org> (raw)
In-Reply-To: <4B204334.1000605@shiftmail.org>
Asdo wrote:
> and I think I have seen around 10MB/sec when they are of 500KB (this
> transfer at 10MB/sec was in parallel with another faster one however).
Yes I definitely confirm: right now I have just 1 rsync copy running,
it's in a zone where files are around 500KB on average, and it's going
at 9 MB/sec.
Stack traces of the writer process conform to what I have posted in my
previous email, even now that the writer is the only process using the
destination array.
WARNING: multiple messages have this Message-ID (diff)
From: Asdo <asdo@shiftmail.org>
To: xfs@oss.sgi.com
Cc: linux-raid <linux-raid@vger.kernel.org>
Subject: Re: Disappointing performance of copy (MD raid + XFS)
Date: Thu, 10 Dec 2009 01:57:39 +0100 [thread overview]
Message-ID: <4B204783.7040109@shiftmail.org> (raw)
In-Reply-To: <4B204334.1000605@shiftmail.org>
Asdo wrote:
> and I think I have seen around 10MB/sec when they are of 500KB (this
> transfer at 10MB/sec was in parallel with another faster one however).
Yes I definitely confirm: right now I have just 1 rsync copy running,
it's in a zone where files are around 500KB on average, and it's going
at 9 MB/sec.
Stack traces of the writer process conform to what I have posted in my
previous email, even now that the writer is the only process using the
destination array.
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next prev parent reply other threads:[~2009-12-10 0:57 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-10 0:39 Disappointing performance of copy (MD raid + XFS) Asdo
2009-12-10 0:39 ` Asdo
2009-12-10 0:57 ` Asdo [this message]
2009-12-10 0:57 ` Asdo
2009-12-10 1:16 ` Asdo
2009-12-10 1:16 ` Asdo
2009-12-10 4:16 ` Eric Sandeen
2009-12-10 4:16 ` Eric Sandeen
2009-12-11 1:41 ` Asdo
2009-12-11 1:41 ` Asdo
2009-12-11 3:20 ` Eric Sandeen
2009-12-11 3:20 ` Eric Sandeen
2009-12-11 3:26 ` Dave Chinner
2009-12-15 16:51 ` Kasper Sandberg
2009-12-15 16:53 ` Eric Sandeen
2009-12-15 16:53 ` Eric Sandeen
2009-12-10 7:28 ` Gabor Gombas
2009-12-10 7:28 ` Gabor Gombas
2009-12-10 9:44 ` Kristleifur Daðason
2009-12-10 9:44 ` Kristleifur Daðason
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