Bug #80341 [Fbk->Asn]: OPCache wasted memory grows rapidly and no restart after max_wasted_percentage

Edit report at https://bugs.php.net/bug.php?id=80341&edit=1 ID: 80341 Updated by: cmb@php.net Reported by: alex at ndros dot com Summary: OPCache wasted memory grows rapidly and no restart after max_wasted_percentage -Status: Feedback +Status: Assigned Type: Bug Package: opcache Operating System: Windows 2019 PHP Version: 7.4.12 Assigned To: cmb Block user comment: N Private report: N New Comment: Thanks for the swift reply! I'll have a closer look. Previous Comments: ------------------------------------------------------------------------ [2020-11-09 14:36:21] alex at ndros dot com Hi there, Yes, I'm using php-7.4.12-nts-Win32-vc15-x64.zip We're using a load balance with multiple IIS server. Yes, the files are located in a symlink pointing to an SMB share. But it seems that I have solved the problem with the wasted memory. I switched off opcache.file_cache and now after 12 hours the wasted memory is at 0%. So whatever it was, it was somehow related to the file_cache. However, the problem that Opcache not reseting after opcache.max_wasted_percentage is reached still remains. I did several tests for this, and it never resets when the value was reached. ------------------------------------------------------------------------ [2020-11-09 10:27:30] cmb@php.net > I run PHP 7.4.12 […] Assuming it is about a build from windows.php.net, which one exactly? php-7.4.12-nts-Win32-vc15-x64.zip? > I can verify this be updating .php files and the changes show up > instantly (where normally they take 90 seconds or less, based on > my opcache.revalidate_freq). Are these files stored on some file share, or are they somehow linked (e.g. behind a junction)? Is there any possibly relevant info in the OPcache error log? ------------------------------------------------------------------------ [2020-11-09 00:10:53] alex at ndros dot com Also, the default opcache.max_wasted_percentage of 5% does not seem to work. Nothing happens when 5% is exceeded. ------------------------------------------------------------------------ [2020-11-09 00:09:28] alex at ndros dot com Description: ------------ I run PHP 7.4.12 on a Windows 2019 IIS10 server. The wasted memory value in PHP Opcache grows rapidly, fills up my entire 2GB allocated to Opcache, and then opcache stops working. For example, these are the statistics after 30mins since the last webserver reset: total memory: 2.00GB used memory: 89.00MB free memory: 1.66GB wasted memory: 261.36MB (12.76%) And these are my settings: opcache.memory_consumption=2048 opcache.cache_id=oc1 opcache.error_log="D:\temp\php\opcache_errors.log" opcache.validate_timestamps=1 opcache.revalidate_freq=90 opcache.interned_strings_buffer=32 opcache.save_comments=0 opcache.max_file_size=0 opcache.file_update_protection=0 opcache.file_cache_consistency_checks=0 opcache.file_cache="D:\temp\php\opcache_filecache" opcache.max_accelerated_files=100000 If I leave it to run more time, the wasted memory fills up my entire 2GB allocated to Opcache, and opcache will simply stop to work. I can verify this be updating .php files and the changes show up instantly (where normally they take 90 seconds or less, based on my opcache.revalidate_freq). Thanks Alex ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=80341&edit=1