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Message-ID: <20090403233555.GA24143@redhat.com>
Date: Fri, 3 Apr 2009 19:35:55 -0400
From: Dave Jones <davej@...hat.com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Jeff Garzik <jeff@...zik.org>,
Chris Mason <chris.mason@...cle.com>,
Andrew Morton <akpm@...ux-foundation.org>,
David Rees <drees76@...il.com>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Linux 2.6.29
On Fri, Apr 03, 2009 at 01:14:00PM -0700, Linus Torvalds wrote:
> But I _think_ G.SKILL uses those horribly broken JMicron controllers.
> Judging by your performance numbers, it's the slightly fancier double
> controller version (ie basically an internal RAID0 of two identical
> JMicron controllers, each handling half of the flash chips).
>
> Try a random write test. If it's the JMicron controllers, performance will
> plummet to a few tens of kilobytes per second.
I got the 64GB variant of Jeff's g-skill SSD. When I first got it,
I ran aio-stress on it. The numbers from the smaller blocksize tests
are pitiful. To the extent that after running for 24hrs, I ctrl-c'd
the test. Really, really abysmal.
Dave
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