Re: [RFC PATCH] cfq-iosched: IOPS mode for group scheduling and newgroup_idle tunable

From: Heinz Diehl
Date: Mon Jul 26 2010 - 12:15:22 EST

On 26.07.2010, Vivek Goyal wrote:

> How do you measure it? IOW, are you running something else also on the
> desktop in the background. Like a heavy writer etc and then measuring
> how interactive desktop feels?

I used Linus' "bigfile torture test" in the background:

while : ; do time sh -c "dd if=/dev/zero of=bigfile bs=8M count=256 ;
sync; rm bigfile"; done

and Theodore Tso's "fsync-tester" to benchmark interactivity.

Didn't save any results, wasn't expecting that this could be of any
further interest (but can run the tests one more time, if desired).

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