Req #71854 [Com]: FPM: Please make epoll sleep interval configurable
| From: | mabelgoodrich at gmail dot com | Date: | Sat, 07 Aug 2021 15:27:38 +0000 |
| Subject: | Req #71854 [Com]: FPM: Please make epoll sleep interval configurable | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-235659@lists.php.net to get a copy of this message | ||
Edit report at https://bugs.php.net/bug.php?id=71854&edit=1
ID: 71854
Comment by: mabelgoodrich at gmail dot com
Reported by: elrond+php dot net at samba-tng dot org
Summary: FPM: Please make epoll sleep interval configurable
Status: Open
Type: Feature/Change Request
Package: FPM related
Operating System: Linux
PHP Version: 5.6.19
Block user comment: N
Private report: N
New Comment:
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Previous Comments:
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[2016-03-18 16:17:52] elrond+php dot net at samba-tng dot org
Description:
------------
FPM in ondemand mode seems a perfect tool for a server/laptop that is running php very seldom. On a
laptop every wakeup is important, because it will bring the CPU usually to nearly full power.
Running FPM in this scenario wakes up the CPU every second. This sounds seldom for servers, but
it's often on a laptop.
strace shows this nicely:
epoll_wait(10, {}, 1, 1000) = 0
The relevant code is in sapi/fpm/fpm/fpm_events.c, function fpm_event_loop().
Especially the "timeout = 1000;".
It would be cool, if this would be configurable, so that one can set it to 100 sec for example.
Expected result:
----------------
much longer sleep periods, if desired.
Actual result:
--------------
wakeup every second.
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Edit this bug report at https://bugs.php.net/bug.php?id=71854&edit=1