Bug #76280 [Com]: Performance degrades permantly when overwriting PHP files, until apache restart

Edit report at https://bugs.php.net/bug.php?id=76280&edit=1 ID: 76280 Comment by: svegeg at sgegegeg dot gh Reported by: teo8976 at gmail dot com Summary: Performance degrades permantly when overwriting PHP files, until apache restart Status: No Feedback Type: Bug Package: opcache Operating System: debian PHP Version: 5.6.36 Assigned To: cmb Block user comment: N Private report: N New Comment: why didn't you read http://blog.jpauli.tech/2015-03-05-opcache-html/ in the meantime to fix your buggy expectations? Previous Comments: ------------------------------------------------------------------------ [2021-03-01 19:16:10] php4fan at gmail dot com Recently upgraded to 7.4, still observing the issue. ------------------------------------------------------------------------ [2020-11-23 19:31:19] rtrtrtrtrt at dfdfdfdf dot dfd > That is the current behavior?? > If that wasted memory never gets freed, that sounds like a bug to me. no, that's by design to avoid memory fragmentation which has it's own problems like APC had with it - in theory a ton of cache memory free but no free segment large enough to cache anything useful anymore ------------------------------------------------------------------------ [2020-11-23 18:06:15] cmb@php.net Consider to read <http://blog.jpauli.tech/2015-03-05-opcache-html/>. ------------------------------------------------------------------------ [2020-11-23 17:49:25] php4fan at gmail dot com > if updated files are being cached by OPcache, the old files > will never be removed from the shared memory (this is reporteded > as wasted memory). This wasted memory may sum up to the point > where you no longer have sufficient free memory, so no more files > can be cached, what would cause them to be executed uncached. That is the current behavior?? If that wasted memory never gets freed, that sounds like a bug to me. I haven't tested PHP 7 yet. ------------------------------------------------------------------------ [2020-11-22 04:22:08] php-bugs at lists dot php dot net No feedback was provided. The bug is being suspended because we assume that you are no longer experiencing the problem. If this is not the case and you are able to provide the information that was requested earlier, please do so and change the status of the bug back to "Re-Opened". Thank you. ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=76280 -- Edit this bug report at https://bugs.php.net/bug.php?id=76280&edit=1