From: Max Waterman <davidmaxwaterman+gmane@fastmail.co.uk>
To: linux-raid@vger.kernel.org
Subject: Re: md faster than h/w?
Date: Mon, 16 Jan 2006 14:31:22 +0800 [thread overview]
Message-ID: <43CB3DBA.405@fastmail.co.uk> (raw)
In-Reply-To: <Pine.LNX.4.44.0601131720090.24299-100000@coffee.psychology.mcmaster.ca>
Mark Hahn wrote:
> I've written a fairly
> simple bandwidth-reporting tool:
> http://www.sharcnet.ca/~hahn/iorate.c
>
> it prints incremental bandwidth, which I find helpful because it shows
> recording zones, like this slightly odd Samsung:
> http://www.sharcnet.ca/~hahn/sp0812c.png
>
Using iorate.c, I guess somewhat different numbers for the 2.6.15 kernel than
for the 2.6.8 kernel - the 2.6.15 kernel starts off at 105MB/s and head down
to 94MB/s, while 2.6.8 starts at 140MB/s and heads town to 128MB/s.
That seems like a significant difference to me?
What to do?
Max.
next prev parent reply other threads:[~2006-01-16 6:31 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-13 7:06 md faster than h/w? Max Waterman
2006-01-13 14:46 ` Ross Vandegrift
2006-01-13 21:08 ` Lajber Zoltan
2006-01-14 1:19 ` Max Waterman
2006-01-14 2:05 ` Ross Vandegrift
2006-01-14 8:26 ` Max Waterman
2006-01-14 10:42 ` Michael Tokarev
2006-01-14 11:48 ` Max Waterman
2006-01-14 18:14 ` Mark Hahn
2006-01-14 1:22 ` Max Waterman
2006-01-14 6:40 ` Mark Hahn
2006-01-14 8:54 ` Max Waterman
2006-01-14 21:23 ` Ross Vandegrift
2006-01-16 4:37 ` Max Waterman
2006-01-16 5:33 ` Max Waterman
2006-01-16 14:12 ` Andargor
2006-01-17 9:18 ` Max Waterman
2006-01-17 17:09 ` Andargor
2006-01-18 4:43 ` Max Waterman
2006-01-16 6:31 ` Max Waterman [this message]
2006-01-16 13:30 ` Ric Wheeler
2006-01-16 14:08 ` Mark Hahn
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