Re: [RFC][PATCH] iowait statistics

William Lee Irwin III (wli@holomorphy.com)
Wed, 15 May 2002 09:21:16 -0700


On Wed, 15 May 2002, Denis Vlasenko wrote:
>> I think two patches for same kernel piece at the same time is
>> too many. Go ahead and code this if you want.

On Wed, May 15, 2002 at 01:13:33PM -0300, Rik van Riel wrote:
> OK, here it is. Changes against yesterday's patch:
> 1) make sure idle time can never go backwards by incrementing
> the idle time in the timer interrupt too (surely we can
> take this overhead if we're idle anyway ;))
> 2) get_request_wait also raises nr_iowait_tasks (thanks akpm)
> This patch is against the latest 2.5 kernel from bk and
> pretty much untested. If you have the time, please test
> it and let me know if it works.

I'll take it for a spin on my 8-way HT box; I can remove enough of
the non-compiling device subsystems to get test boots & runs in there.

Cheers,
Bill
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/