Re: [Patch 5/7] synchronous block I/O delays

Andi Kleen
2006-02-27T14:18:46Z

Shailabh Nagar <nagar@watson.ibm.com> writes:

> delayacct-blkio.patch
>
> Record time spent by a task waiting for completion of
> userspace initiated synchronous block I/O. This can help
> determine the right I/O priority for the task.

I think it's a good idea to have such a statistic by default.

Can you add a counter that is summed up in task_struct and reports
in /proc/*/stat so that it could be displayed by top?

This way it would be useful even with "normal" user space.

-Andi