Article View: fr.comp.lang.c
Article #15611Re: Delai en 100 eme de ms universel
From: Emmanuel Delahaye
Date: Sat, 17 Sep 2005 11:30
Date: Sat, 17 Sep 2005 11:30
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Harpo wrote on 17/09/05 : > Essayez rt-linux, sous linux, on peut changer (si root) la mani�re dont > se fait l'ordonnancement (man sched-setscheduler), mais de toute > mani�re il faut avoir inhib� les interruptions pour �tre s�r. > Depuis le noyau 2.6.8 (� v�rifier), le tick permet de d�multiplier la > finesse de la granularit� du temps, mais il faut voir �a plus en d�tail > et je ne pense pas que ce soit une question � poser sur fr.comp.lang.c, > plut�t sur des groupes qui s'occupent de drivers et de choses comme �a. La granularit� r�elle d�pend des capacit�s mat�rielle de la cible... Si le tick est � 10 ms. Ce sera 10 ms, point. Si il y a un tick � 1 �s, ben, faut voir... Apr�s, il y a des probl�mes de charge... -- Emmanuel The C-FAQ: http://www.eskimo.com/~scs/C-faq/faq.html The C-library: http://www.dinkumware.com/refxc.html "C is a sharp tool"
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X-Google-Thread: f9822,8d23bb47e02845e2 X-Google-Attributes: gidf9822,public X-Google-Language: FRENCH,ASCII Path: arc1-ca.pugleaf.net!g2news1.google.com!news3.google.com!news.glorb.com!nocworld.net!freenix!proxad.net!infeed-3.proxad.net!news18-e.free.fr!not-for-mail Subject: Re: Delai en 100 eme de ms universel From: "Emmanuel Delahaye" <emdel@YOURBRAnoos.fr> References: <432ad506$0$307$7a628cd7@news.club-internet.fr> <slrndimjda.f18.root@shiva.india.ath.cx> <432bb63c$0$5365$8fcfb975@news.wanadoo.fr> <432bf2f4$0$17227$8fcfb975@news.wanadoo.fr> Newsgroups: fr.comp.lang.c Message-ID: <mn.8b2a7d5914d32de6.15512@YOURBRAnoos.fr> X-Newsreader: MesNews/1.04.00.00-fr Date: Sat, 17 Sep 2005 13:30:11 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15"; format=flowed Content-Transfer-Encoding: 8bit Lines: 23 Organization: Guest of ProXad - France NNTP-Posting-Date: 17 Sep 2005 13:30:12 MEST NNTP-Posting-Host: 81.65.109.78 X-Trace: 1126956612 news18-e.free.fr 973 81.65.109.78:24388 X-Complaints-To: abuse@proxad.net