From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Hamie <hamish@travellingkiwi.com>
Cc: Russell King <rmk+lkml@arm.linux.org.uk>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: ide-cs using 100% CPU
Date: Sat, 07 Aug 2004 23:26:38 +0100 [thread overview]
Message-ID: <1091917597.19077.38.camel@localhost.localdomain> (raw)
In-Reply-To: <4113DD20.1010808@travellingkiwi.com>
On Gwe, 2004-08-06 at 20:33, Hamie wrote:
> Is 100% CPU not excessive? IIRC my PIII-750 used to use less CPU doing
> the same job as quick, or even slightly faster...
PCMCIA IDE is PIO only so it burns CPU. This is one case where
hyperthreading is nice. Cardbus IDE is a lot better but very little
exists and we don't currently support hotplug IDE controllers.
> And should it not use system CPU rather than user CPU?
Yes - but figure out please if the kernel or userspace is getting that
wrong ;)
Alan
next prev parent reply other threads:[~2004-08-07 23:30 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-18 9:30 ide-cs using 100% CPU Hamie
2004-08-06 19:27 ` Russell King
2004-08-06 19:33 ` Hamie
2004-08-06 19:38 ` Russell King
2004-08-07 17:55 ` Hamie
2004-08-07 22:26 ` Alan Cox [this message]
2004-08-08 9:03 ` Hamie
2004-08-08 15:24 ` Alan Cox
2004-08-09 9:57 ` Paulo Marques
2004-08-09 12:32 ` P
2004-08-09 20:11 ` Bill Davidsen
[not found] <fa.j0leddb.okcbor@ifi.uio.no>
[not found] ` <fa.goasld9.1q1kb05@ifi.uio.no>
2004-08-07 19:21 ` Robert Hancock
2004-08-08 15:24 ` Hamie
[not found] <fa.hhjr2f2.1ql2t80@ifi.uio.no>
[not found] ` <fa.ggacpdl.26on0d@ifi.uio.no>
2004-08-08 19:32 ` Robert Hancock
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