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Date: Wed, 27 Aug 2008 15:12:38 -0700 (PDT)
From: Richard de Vries <richard_devries@yahoo.com>
To: users@httpd.apache.org
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Message-ID: <314867.34453.qm@web36904.mail.mud.yahoo.com>
Subject: Re: [users@httpd] lower cpu priority to perl scripts

If you are running on unix, the easiest way to probably do this is by calli=
ng the "setpriority" from within your perl script like this:=0Asetpriority(=
WHICH,WHO,PRIORITY);=0ATo set your current running perlscript to the lowest=
 priority, you would call setpriority(0, $$, 20);=0A$$ is your script's pro=
cess ID, and "20" denotes the priority. (as you know, -20 is highest priori=
ty and 20 the lowest priority). =0ACheers,=0A=A0=A0 R.=0A=0A----- Original =
Message ----=0AFrom: Audio Phile <da_audiophile@yahoo.com>=0ATo: users@http=
d.apache.org=0ASent: Wednesday, August 27, 2008 2:18:53 PM=0ASubject: Re: [=
users@httpd] lower cpu priority to perl scripts=0A=0ATamer,=0A=0AThank you =
very much for the reply.=A0 I googled around for the proper syntax of your =
suggestion as well as which config file I need to edit with it, but I came =
up with a big fat 0.=A0 Can you provide a few more details for me?=A0 Apolo=
gies in advance, I am a newbie with apache2 :)=0A=0ATamer Embaby wrote: =0A=
Audio,=0A=0AYou can always start your scripts with [re]nice() syscall to lo=
wer=0Ayour process (perl script in this case) priority.=0A=0ARegards,=0ATam=
er=0A=0A-----Original Message-----=0AFrom: Audio Phile [mailto:da_audiophil=
e@yahoo.com]=0ASent: Tuesday, August 26, 2008 8:57 PM=0ATo: users@httpd.apa=
che.org=0ASubject: [users@httpd] lower cpu priority to perl scripts=0A=0AI'=
d like to adjust the priority of /usr/bin/perl such that it will always run=
 with very low priority.=A0 The PC that I'm using isn't very powerful.=A0 I=
'm running rrdweather on it and when a user hits the weather.cgi about 10 p=
rocesses of perl scripts run,=0Awhich totally throttles foreground applicat=
ions until they finish.=0A=0AHow can I assign /usr/bin/perl to always run w=
ith a really low CPU priority (a really high nice value) for any script it =
executes? Is this an apache2 setting or...?=0A=0A=0A=A0 =A0 =A0 =0A=0A-----=
----------------------------------------------------------------=0AThe offi=
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RL:http://httpd.apache.org/userslist.html> for more info.=0ATo unsubscribe,=
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