Re: [RFC][PATCH] IO wait accounting

Rik van Riel (riel@conectiva.com.br)
Thu, 9 May 2002 16:08:16 -0300 (BRT)


On Thu, 9 May 2002, Bill Davidsen wrote:

> I have been simply counting WaitIO ticks when there is (a) no runable
> process in the system, and (b) at least one process blocked for disk i/o,
> either page or program. And instead of presenting it properly I just
> stuffed it in a variable and read it from kmem.

OK, how did you measure this ?

And should we measure read() waits as well as page faults or
just page faults ?

regards,

Rik

-- 
	http://www.linuxsymposium.org/2002/
"You're one of those condescending OLS attendants"
"Here's a nickle kid.  Go buy yourself a real t-shirt"

http://www.surriel.com/ http://distro.conectiva.com/

- 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/