Re: [patch/rft] jbd2: tag journal writes as metadata I/O

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From: tytso

Subject: Re: [patch/rft] jbd2: tag journal writes as metadata I/O

Date: Monday, April 5, 2010 - 2:01 pm

On Mon, Apr 05, 2010 at 04:41:48PM -0400, Jeff Moyer wrote:
quoted text> > 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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Messages in current thread:

Re: [patch/rft] jbd2: tag journal writes as metadata I/O, tytso, (Mon Apr 5, 10:52 am)

Re: [patch/rft] jbd2: tag journal writes as metadata I/O, Jeff Moyer, (Mon Apr 5, 11:36 am)

Re: [patch/rft] jbd2: tag journal writes as metadata I/O, tytso, (Mon Apr 5, 12:48 pm)

Re: [patch/rft] jbd2: tag journal writes as metadata I/O, Jeff Moyer, (Mon Apr 5, 1:34 pm)

Re: [patch/rft] jbd2: tag journal writes as metadata I/O, Jeff Moyer, (Mon Apr 5, 1:41 pm)

Re: [patch/rft] jbd2: tag journal writes as metadata I/O, tytso, (Mon Apr 5, 2:01 pm)


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