Messages in this thread | | | Date | Mon, 5 Apr 2010 17:01:33 -0400 | From | tytso@mit ... | Subject | Re: [patch/rft] jbd2: tag journal writes as metadata I/O |
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On Mon, Apr 05, 2010 at 04:41:48PM -0400, Jeff Moyer wrote: > > Sorry, Ted, what I meant to say was that iozone showed differences > > between deadline and cfq, where cfq's performance was much worse than > > deadline's. > > And to be 100% clear, with the patch, the performance differences > between deadline and cfq were in the noise.
Right, and since most people don't actually change the I/O scheduler from cfq, this is basically a performance improvement patch, which is how I'm going to describe it. :-)
- Ted
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