Req #55526 [Com]: Heartbeat rate too high causes a lot of events

Edit report at https://bugs.php.net/bug.php?id=55526&edit=1 ID: 55526 Comment by: fat@php.net Reported by: adrien at antipoul dot fr Summary: Heartbeat rate too high causes a lot of events Status: Assigned Type: Feature/Change Request Package: FPM related Operating System: Linux PHP Version: 5.3.8 Assigned To: fat Block user comment: N Private report: N New Comment: The FPM heartbeat is used to check timeouts on its children which includes: - request_terminate_timeout - request_slowlog_timeout If you don't use those features, the heartbeat is useless as it does nothing. If you use those features, you can higher the heartbeat frequency accordingly. If you need to change it quickly, you can edit the source file fpm_process_ctl.h and change /* 130ms heartbeat for pctl */ #define FPM_PCTL_HEARTBEAT (130) to what you want. Previous Comments: ------------------------------------------------------------------------ [2011-08-28 16:59:07] adrien at antipoul dot fr Description: ------------ Hi, It seems that FPM has a heartbeat each 130ms. This is really short, and make php-fpm the #1 event generator on my personal server, that also runs Apache, NGinx, dovecot, powerdns, NSD3 and unicorn. There might be a good reason for such a heartbeat, but there also might be a way to at least increase it to 5 or 10 seconds. I'll be glad to help and get rid of this, as soon as I understand what this heartbeat is helpful for. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=55526&edit=1