# PHp fpm 100% **URL:** \ **Category:** Support Debian\ **Created:** [Avril 19, 2021, 8:20 UTC](https://www.debian-fr.org/t/php-fpm-100/84423 "2021-04-19T20:20:48Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![bagou450](https://www.debian-fr.org/letter_avatar_proxy/v4/letter/b/e9bcb4/32.png) [@bagou450](https://www.debian-fr.org/u/bagou450)\ **Post date:** [Avril 19, 2021, 8:20 UTC](https://www.debian-fr.org/t/php-fpm-100/84423/1 "2021-04-19T20:20:48Z")
Hello i have a server on debian 9 with nginx and php 8.0 fpm The specs of the server : 64 go of ram i7 6700k But when i start nginx my cpu reach 100% In my php config file : pm = ondemand ; The number of child processes to be created when pm is set to ‹ static › and the ; maximum number of child processes when pm is set to ‹ dynamic › or ‹ ondemand ›. ; This value sets the limit on the number of simultaneous requests that will be ; served. Equivalent to the ApacheMaxClients directive with mpm\_prefork. ; Equivalent to the PHP\_FCGI\_CHILDREN environment variable in the original PHP ; CGI. The below defaults are based on a server without much resources. Don’t ; forget to tweak pm.\* to fit your needs. ; Note: Used when pm is set to ‹ static ›, ‹ dynamic › or ‹ ondemand › ; Note: This value is mandatory. pm.max\_children = 400000 ---
**Author:** ![anon96191775](https://www.debian-fr.org/letter_avatar_proxy/v4/letter/a/71c47a/32.png) [@anon96191775](https://www.debian-fr.org/u/anon96191775)\ **Post date:** [Avril 19, 2021, 9:01 UTC](https://www.debian-fr.org/t/php-fpm-100/84423/2 "2021-04-19T21:01:26Z")
Sur ce forum, il vaut mieux écrire en français si tu veux avoir des réponses 😉 ---
**Author:** ![anon70622873](https://www.debian-fr.org/letter_avatar_proxy/v4/letter/a/278dde/32.png) [@anon70622873](https://www.debian-fr.org/u/anon70622873)\ **Post date:** [Avril 20, 2021, 8:25 UTC](https://www.debian-fr.org/t/php-fpm-100/84423/3 "2021-04-20T08:25:20Z")
> [@bagou450](#): > > pm.max\_children = 400000 Ouch ! 🤯 Pas étonnant que le CPU soit à 100%. C’est quoi cette valeur délirante ? Où sont les autres directives obligatoires avec les processus à la demande ? ---
**Author:** ![josephtux](https://www.debian-fr.org/user_avatar/www.debian-fr.org/josephtux/32/3985_2.png) [@josephtux](https://www.debian-fr.org/u/josephtux)\ **Post date:** [Avril 20, 2021, 9:55 UTC](https://www.debian-fr.org/t/php-fpm-100/84423/4 "2021-04-20T09:55:54Z")
> **[PHP pour Apache2 configuration et optimisation des performances – Buzut](https://buzut.net/configuration-dun-serveur-linux-php/)** > > Installons et paramétrons PHP. On passera en revue les options les plus importantes et les différentes configurations possibles. «10 ou9 pour être prudent»