Date: Mon, 20 Apr 1998 07:54:29 +0200 From: Poul-Henning Kamp <phk@critter.freebsd.dk> To: pb@fasterix.freenix.org (Pierre Beyssac) Cc: freebsd-bugs@FreeBSD.ORG Subject: Re: kern/5236 Message-ID: <16263.893051669@critter.freebsd.dk> In-Reply-To: Your message of "Mon, 20 Apr 1998 01:13:35 %2B0200." <19980420011335.SG57732@@>
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In message <19980420011335.SG57732@@>, Pierre Beyssac writes: >Poul-Henning Kamp writes: >> Synopsis: CPU and mem not zeroed for zombie process >> >> I don't think this behaviour is wrong. What do you perceive as a problem >> with it ? > >The problem is that a zombie process can be shown (by ps) as using a >non-zero amount of CPU (and mem) for hours. It clearly isn't an >accurate view of actual usage of system resources. Maybe it has an >influence on load averages computations too. Well, first: zombies are signs of programming errors in the parent process. Second: ps doesn't give an atomic snapshot of the system, so it isn't an accurate view of system resources. Third: since it isn't scheduled none of those awful things will happen. Fourth: If you had included a patch for ps things would probably happen :-) -- Poul-Henning Kamp FreeBSD coreteam member phk@FreeBSD.ORG "Real hackers run -current on their laptop." "Drink MONO-tonic, it goes down but it will NEVER come back up!" To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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