From: Hamie <hamish@travellingkiwi.com>
To: Robert Hancock <hancockr@shaw.ca>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: ide-cs using 100% CPU
Date: Sun, 08 Aug 2004 16:24:36 +0100 [thread overview]
Message-ID: <411645B4.7070907@travellingkiwi.com> (raw)
In-Reply-To: <006d01c47cb3$b2e133b0$6401a8c0@northbrook>
Robert Hancock wrote:
>It isn't that the CPU is doing so much work, it's mostly waiting. However
>
>
That was my point... While waiting, shouldn't the CPU be off doing
something else? Like giving X some attention...
>with this type of PIO access, the CPU must do all the reads/writes from the
>buffer and while doing this the CPU is blocked and cannot do anything else.
>
>
>
Or is the CF requirements such that it's spending it's time doing the
actual reads & writes from the buffer, and it's the hardware inserting
wait-states when it's being accessed?
next prev parent reply other threads:[~2004-08-08 15:24 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <fa.j0leddb.okcbor@ifi.uio.no>
[not found] ` <fa.goasld9.1q1kb05@ifi.uio.no>
2004-08-07 19:21 ` ide-cs using 100% CPU Robert Hancock
2004-08-08 15:24 ` Hamie [this message]
[not found] <fa.hhjr2f2.1ql2t80@ifi.uio.no>
[not found] ` <fa.ggacpdl.26on0d@ifi.uio.no>
2004-08-08 19:32 ` Robert Hancock
2004-07-18 9:30 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
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
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