Re: [Patch 0/5] I/O statistics through request queues

[martin]

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.

Thanks,
Martin

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