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Subject: Re: Nice 19 process still gets some CPU
From: =?ISO-8859-1?Q?Beno=EEt?= Dejean <TazForEver@free.fr>
Reply-To: TazForEver@dlfp.org
To: Timothy Miller <miller@techsource.com>
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References: <40E035CE.1020401@techsource.com>
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Date: Tue, 29 Jun 2004 08:26:03 +0200
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Le lun, 28/06/2004 =C3=A0 11:14 -0400, Timothy Miller a =C3=A9crit :

> I would expect that nice 0 processes should get SO MUCH more than nice=20
> 19 processes that the nice 19 process would practically starve (and in=20
> the case of a nice 19 process, I think starvation by nice 0 processes is=20
> just fine), but it looks like it's not starving.

	when i was running seti@home (more than 10k WU, 7y), i was using a a
home-maid script that controled the seti process. when load > <value> i
was stopping seti (SIGSTOP) then, when load <value>, i was restarting it
(SIGCONT). i was using a kind of fuzzy logic to prevent from too
frequent switchs and i was polling the 3 loads to make a efficient
decision. that way, i was able to get 100% of my cpu when it was
needed : while playing quake or comipiling a big stuff.

--=20
Beno=C3=AEt Dejean
JID: TazForEver@jabber.org
http://gdesklets.gnomedesktop.org
http://www.paulla.asso.fr

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