From: William Lee Irwin III <wli@holomorphy.com>
To: Nick Piggin <piggin@cyberone.com.au>
Cc: Marc-Christian Petersen <m.c.p@wolk-project.de>,
Felipe Alfaro Solana <felipe_alfaro@linuxmail.org>,
Con Kolivas <kernel@kolivas.org>,
linux kernel mailing list <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@osdl.org>
Subject: Re: [PATCH] O11int for interactivity
Date: Mon, 4 Aug 2003 20:31:19 -0700 [thread overview]
Message-ID: <20030805033119.GO32488@holomorphy.com> (raw)
In-Reply-To: <3F2F231C.3030901@cyberone.com.au>
William Lee Irwin III wrote:
>> Well, I was vaguely hoping a useful way to instrument the io stuff
>> would already be out there.
On Tue, Aug 05, 2003 at 01:23:08PM +1000, Nick Piggin wrote:
> Not really.
> For a process doing blocking reads you could measure the time
> from when a process submits a read to when it gets the result.
> I suppose you also need some minimum rate too but I really can't
> see that being the problem here.
I'm at least aware of patches for 2.4.x that log io scheduling
decisions in the driver, which is basically what I was hoping for.
On a higher level, are you thinking there's some indication the
io schedulers themselves aren't involved? Or that something higher-
level should be instrumented? If so, what?
-- wli
next prev parent reply other threads:[~2003-08-05 3:30 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-30 0:38 [PATCH] O11int for interactivity Con Kolivas
2003-07-30 0:55 ` Con Kolivas
2003-07-30 1:08 ` Con Kolivas
2003-07-31 13:55 ` Szonyi Calin
2003-07-31 13:56 ` Con Kolivas
2003-07-31 15:21 ` Måns Rullgård
2003-07-31 21:38 ` William Lee Irwin III
2003-07-31 22:01 ` Robert Love
2003-07-30 8:29 ` Felipe Alfaro Solana
2003-07-30 8:43 ` Marc-Christian Petersen
2003-07-30 9:38 ` Con Kolivas
2003-07-30 9:45 ` Marc-Christian Petersen
2003-07-30 12:56 ` Felipe Alfaro Solana
2003-07-30 13:14 ` Wade
2003-07-31 21:43 ` William Lee Irwin III
2003-07-31 21:55 ` William Lee Irwin III
2003-08-01 10:44 ` Marc-Christian Petersen
2003-08-02 21:27 ` Marc-Christian Petersen
2003-08-02 22:55 ` William Lee Irwin III
2003-08-02 23:19 ` Marc-Christian Petersen
2003-08-04 19:06 ` Marc-Christian Petersen
2003-08-04 19:53 ` William Lee Irwin III
2003-08-05 0:56 ` Nick Piggin
2003-08-05 2:41 ` William Lee Irwin III
2003-08-05 3:07 ` Nick Piggin
2003-08-05 3:13 ` William Lee Irwin III
2003-08-05 3:23 ` Nick Piggin
2003-08-05 3:31 ` William Lee Irwin III [this message]
2003-08-05 3:38 ` Nick Piggin
2003-08-05 4:54 ` Valdis.Kletnieks
2003-08-05 5:02 ` William Lee Irwin III
2003-08-05 5:55 ` Andrew Morton
2003-08-05 7:11 ` Nick Piggin
2003-08-05 17:00 ` Martin Josefsson
2003-07-30 8:41 ` Felipe Alfaro Solana
2003-07-30 9:35 ` Con Kolivas
2003-07-30 15:33 ` Apurva Mehta
2003-07-31 16:58 ` Moritz Muehlenhoff
-- strict thread matches above, loose matches on Subject: below --
2003-07-30 10:31 Voluspa
2003-07-30 10:51 ` Con Kolivas
2003-07-30 11:20 ` Eugene Teo
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