Date: Fri, 29 Dec 2006 04:55:44 -0800 (PST) From: "R. B. Riddick" <arne_woerner@yahoo.com> To: vd@FreeBSD.org, freebsd-geom@freebsd.org Subject: Re: gstripe performance scaling with many disks Message-ID: <20061229125545.12935.qmail@web30305.mail.mud.yahoo.com> In-Reply-To: <20061229120517.GA12877@qlovarnika.bg.datamax>
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--- Vasil Dimov <vd@FreeBSD.org> wrote: > Here is what further tests showed: > > First of all I switched from dd to raidtest. I had to tune raidtest in > order to use it, see ports/107311. I am testing only reading with 8 > concurrent processes (raidtest test -n 8). > Interesting... But the degradation is much less now... Not 25% (or what was it) but just 10%... Did u try a different stripe size (-s 65536) with more concurrency (-n 20), too? -Arne __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
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