Edit report at https://bugs.php.net/bug.php?id=65559&edit=1
ID: 65559
Comment by: arjen at react dot com
Reported by: zoeslam at gmail dot com
Summary: Opcache: cache not cleared if changes occur while
running
Status: Assigned
Type: Bug
Package: opcache
Operating System: Ubuntu
PHP Version: 5.5.3
Assigned To: dmitry
Block user comment: N
Private report: N
New Comment:
-d opcache.revalidate_freq=0 will result in OPcache checking for updates on every request.
You change the content DURING the request, so OPcache won't check for updates during the
request.
http://www.php.net/manual/en/apc.configuration.php#ini.apc.stat
"This defaults to on, forcing APC to stat (check) the script on each request to determine if it
has been modified."
Reads the same as opcache.revalidate. Because of your bugreport I guess apc.stat=1 checks the file
on disk for modification on every include/require. And not just once per request, which is quite
different..
Previous Comments:
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[2013-11-19 13:52:48] zoeslam at gmail dot com
Well, just tested with
php -d opcache.enable=1 -d opcache.enable_cli=1 -d opcache.revalidate_freq=0 test.php
and the result is the same, int(1), so the issue is still alive.
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[2013-11-19 13:46:45] Terry at ellisons dot org dot uk
Why is this a problem? This is the analog of apc.stat. The only material difference here is that
apc.stat=1 by default. OPcache defaults are different, but this is clearly documented. If you want
OPcache always to revalidate scripts, then set opcache.revalidate_freq=0 as per README and
documentation.
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[2013-11-04 14:54:52] zoeslam at gmail dot com
Maybe you are right, but this is a huge inconsistency, difference and compatibility break from APC,
which was the default opcache in 5.4.
(Just tested with Opcache disabled and php -d extension=apc.so -d apc.enabled=1 -d apc.enable_cli=1
test.php)
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[2013-11-04 14:48:41] arjen at react dot com
Don't think this is a bug. opcache_invalidate()/opcache_reset() isn't called after the
updated file is written to disk, so the opcache just doesn't know the file on disk has changed.
The timestamps are only validated every 2 sec. by default, but only once per request.
See http://www.php.net/manual/en/opcache.configuration.php#ini.opcache.revalidate-freq
and Speed Tuning @ https://github.com/zendtech/ZendOptimizerPlus
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[2013-10-23 14:09:38] zoeslam at gmail dot com
Of course, if you try the test in CLI, make sure to enable the opcache even in the cli:
php -d opcache.enable=1 -d opcache.enable_cli=1 test.php
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