Re: [PATCH] O10int for interactivity

From: Jose Luis Domingo Lopez (linux-kernel@24x7linux.com)
Date: Mon Jul 28 2003 - 12:12:51 EST

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On Monday, 28 July 2003, at 00:55:43 -0700,
Andrew Morton wrote:

> There's a known problem with OpenOffice and its use of sched_yield().
> sched_yield() got changed in 2.6 and it makes OO unusable when there is
> other stuff happening.
>
> Apparently it has been fixed in recent OpenOffice versions. If you cannot
> reproduce this problem in any other application I'd be saying it is "not a
> bug".
>
This must be the reason behind a simple "Save..." of a little OpenOffice
Writer document taking 3 seconds with no activity on the box, and two
minutes when "make bzImage", or "yes" or anyhting CPU intensive.

On the other hand, OO saves files (which is a CPU-bound process) only
marginally slower under heavy hard disk read activity than on an idle
system. Tested with 2.6.0-test2 and with 2.6.0-test2 with latest
scheduler patch from Ingo (2.6.0-test1-G6).

Regards,

-- 
Jose Luis Domingo Lopez
Linux Registered User #189436     Debian Linux Sid (Linux 2.6.0-test1-bk3)
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