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

tytso
2010-04-05T21:01:42Z

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