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Date: Wed, 22 Aug 2001 14:37:19 -0400
To: Cygwin General MailList <cygwin AT cygwin DOT com>
From: "David A. Cobb" <superbiskit AT home DOT com>
Subject: Slowing down the machine
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Using the latest of everything (as of 08/20):
Windows98se (4.10.2222), Mem=196Meg

Running bash in an rxvt window, everything starts out well but deteriorates.
After running a build (configure,make,make check,make install) I observe 
that the machine has taken on a very peculiar pattern: about one second 
during which there is a lot of disk activity, followed by three seconds 
during which there is no activity of any kind.  During these "quiet" times 
the GUI is not able to follow the mouse, and keys aren't acted on -- 
apparently no program is able to get to the message queue.
Also, the clock runs slow.  By the end of the build - about 3 hours - the 
clock is about 2 hours slow.  This suggests that the slowdown started 
fairly early in the build and that the CPU is being so tightly tied up that 
the system clock routine never gets driven.

IIRC, there was some discussion here about a case where the Cygwin DLL has 
to spin-lock.  Is that the case?  Is there something I could do to avoid 
this behavior (other than installing a more reasonable OS)?

Thanks,

-- 
David A. Cobb, Software Engineer, Public Access Advocate, All around nice guy.
Get my PGP key at
:<http://pgpkeys.mit.edu:11371/pks/lookup?op=get&search=superbiskit>
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"By God's Grace I am a Christian man, by my actions a great sinner."
--The Way of a Pilgrim, R. M. French [tr.]
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to examine the source.  Do not buy or use Potentially Viral Software!


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