Re: wrong percent with vsync+randrw

On Mon, Apr 07 2008, Zhang, Yanmin wrote:
> On Mon, 2008-04-07 at 10:04 +0200, Jens Axboe wrote:
> > On Mon, Apr 07 2008, Zhang, Yanmin wrote:
> > > Jens,
> > >
> > > I ran a testing with vsync+randrw. I expected the both read and write's precent are
> > > 50%. But vmstat showed write was more than 99%.
> >
> > The problem here is that the window service is too small, because of
> > your big queue depth. I modified the fio algorithm to only look into ios
> > issued, I think that is the fair metric. With that, you should have a
> > nice distribution between reads and writes - can you pull the update and
> > see that it works for you?
> It's hard to pull in company as IT configures firewall to filter most git
> access. Would you like to send me a patch against the lastest tarball? Or just
> upload the latest tarball on the snapshot website?

No problem, I kicked the snapshot script manually, so the current one
should have it.

-- 
Jens Axboe