Date: Wed, 10 Jun 1998 23:23:46 +1000 From: Bruce Evans <bde@zeta.org.au> To: jb@cimlogic.com.au, rb@gid.co.uk Cc: current@FreeBSD.ORG, jdp@polstra.com Subject: Re: Spurious SIGXCPU Message-ID: <199806101323.XAA21805@godzilla.zeta.org.au>
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>>> You wouldn't perchance happen to be running anything CPU-intensive in the >>> background, nice'd right down? >> >>Not in the background, but the foreground process is both CPU intensive >>and long lived. It's a build program that checks out RCS files, >>... >Hmm. I'm running an RC5 client permanently in the background at nice 19 >that soaks up all the unused CPU. Never seen that fail itself though. Apparently the background process makes it more likely for the foreground process to appear to take a negative amount of time. Another sign of the bug is that accounting for rapid context switches is broken again: $ time ./fork-benchmark 10000 6.10 real 0.01 user 8.33 sys Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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