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Date: Sat, 16 May 2009 12:22:09 +0530 From: Satish Eerpini <eerpini@...il.com> To: Mark Knecht <markknecht@...il.com> Cc: Rik van Riel <riel@...hat.com>, Ray Lee <ray-lk@...rabbit.org>, Christoph Lameter <cl@...ux-foundation.org>, linux-kernel <linux-kernel@...r.kernel.org> Subject: Re: unresponsiveness on linux desktop during file copy > Do you believe this was working better on an earlier kernel? If so you > might drop back and see if these commands work better. If so that > would suggest a regression of some type. I remember good performance with 2.6.26.x series, ... but I could not try that out, ,... things on a 2.6.27.23 kernel seem no better : Linux 2.6.27.23 (satish) 05/16/2009 12:11:18 PM CPU %user %nice %system %iowait %steal %idle 12:11:21 PM all 0.00 0.00 3.92 75.65 0.00 20.42 12:11:24 PM all 0.00 0.00 3.55 67.85 0.00 28.59 12:11:27 PM all 0.16 0.00 4.51 45.09 0.00 50.24 12:11:30 PM all 0.00 0.00 3.59 44.77 0.00 51.63 12:11:33 PM all 0.16 0.00 5.25 82.51 0.00 12.08 Average: all 0.06 0.00 4.17 63.24 0.00 32.53 the average disk speed was about 10.5 MB/s, indeed the average IOWAIT is more than that in the latest kernel, I will see if I can test it on a 2.6.26.x kernel or earlier one and send you guys the stats. Cheers satish -- http://satish.playdrupal.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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