Messages in this thread | | | Date | Thu, 2 Nov 2006 15:46:04 +0100 | From | Jens Axboe <> | Subject | Re: [Patch 0/5] I/O statistics through request queues |
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On Thu, Nov 02 2006, martin wrote: > Jens, Andrew, > I am not pursueing this patch set. I have convinced myself that blktrace > is capable of being used as a an analysis tool for low level I/O > performance, if invoced with appropriate settings. In our tests, we > limited traces to Issue/Complete events, cut down on relay buffers, and > redirected traces to a network connection instead of filling locally > attached storage up. Cost is about 2 percent, as advertised.
Martin, thanks for following up on this and verifying the cost numbers.
-- Jens Axboe
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