Bug #78585 [Opn->Csd]: High CPU usage while syncing Nextcloud apps from phone

From: Date: Mon, 30 Sep 2019 19:58:31 +0000
Subject: Bug #78585 [Opn->Csd]: High CPU usage while syncing Nextcloud apps from phone
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-222965@lists.php.net to get a copy of this message
Edit report at https://bugs.php.net/bug.php?id=78585&edit=1

 ID:                 78585
 User updated by:    uozl3xwtrc25ri4u at mailban dot de
 Reported by:        uozl3xwtrc25ri4u at mailban dot de
 Summary:            High CPU usage while syncing Nextcloud apps from
                     phone
-Status:             Open
+Status:             Closed
 Type:               Bug
 Package:            FPM related
 Operating System:   Arch Linux ARM
 PHP Version:        7.3.9
 Block user comment: N
 Private report:     N

 New Comment:

I have no idea what fixed it, but now it's working as expected.
Thanks for the time. Closing...


Previous Comments:
------------------------------------------------------------------------
[2019-09-23 18:55:07] uozl3xwtrc25ri4u at mailban dot de

I just opened an issue. I will update you on any relevant info.
https://github.com/nextcloud/server/issues/17241

------------------------------------------------------------------------
[2019-09-22 21:44:36] cmb@php.net

Did you already get in touch with the Nextcloud developers?  They
may have some idea what's causing the performance regression.

------------------------------------------------------------------------
[2019-09-22 20:43:00] uozl3xwtrc25ri4u at mailban dot de

Description:
------------
-Phone with Nextcloud News app
-Raspberry Pi 3 Model B with Nextcloud, MariaDB, Lighttpd, php – all up to date
-php-fpm version: 7.3.9 and 7.3.8

php-fpm 7.3.7 and earlier worked fine. Bug occurs on versions 7.3.8 and 7.3.9 only.
Syncing with other apps brings up the same behavior. Nextcloud web access via browser seems normal.


I initiate the syncing of the news app with my Nextcloud via http.

Expected result:
----------------
Syncing takes 1-2 seconds. 1-3 threads utilize 10-20% CPU.

Actual result:
--------------
Syncing takes ca. 10-12 seconds. 1-3 threads utilize 50-100% CPU, at least one close to 100% in that
time. 


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Edit this bug report at https://bugs.php.net/bug.php?id=78585&edit=1


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