Edit report at https://bugs.php.net/bug.php?id=79519&edit=1
ID: 79519
Updated by: nikic@php.net
Reported by: kieran at miami-nice dot co dot uk
Summary: Memory leak in PHP 7.4
Status: Closed
Type: Bug
Package: Performance problem
Operating System: Linux
PHP Version: 7.4.5
Assigned To: nikic
Block user comment: N
Private report: N
New Comment:
@brendt: Is this still the same issue? The fact that a leak occurs when running tests doesn't
say a lot about what the root cause is.
PHP 8.1 fixes specifically the case where a file defining an anon function gets included many times,
but there are variations on this that still leak (e.g. if it's an anon class instead).
Previous Comments:
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[2021-12-09 12:20:14] brendt at stitcher dot io
I want to follow up on this one, since the issue doesn't seem to be resolved.
Tested on PHP 8.1.0 and PHPUnit 9.5.10; running a Laravel test suite of 1400 tests results in a
rather significant memory leak. Here's a screenshot of the memory consumption plotted in a
chart: https://user-images.githubusercontent.com/6905297/145394833-dc488206-238d-4164-86e4-e2ad8c824590.png
This is the issue related to Laravel discussing the problem: https://github.com/laravel/framework/issues/30736
And here's the phpunit issue: https://github.com/sebastianbergmann/phpunit/issues/3915
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[2021-06-09 13:01:12] nikic@php.net
In PHP 8.1, the memory leak for repeated included anonymous functions has been addressed by https://github.com/php/php-src/pull/5595 (or at
least, mostly addressed).
The GC with destructors issue has been addressed by https://github.com/php/php-src/pull/5581.
I believe that covers the issues raised here.
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[2020-09-22 21:27:39] nikic@php.net
Related To: Bug #80140
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[2020-08-10 20:30:00] nikic@php.net
I did some work on this in https://github.com/php/php-src/pull/5593 and https://github.com/php/php-src/pull/5595, but
unfortunately it's not easy to fix.
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[2020-08-10 20:19:32] kieran at supportpal dot com
Will there be a fix for this issue in PHP 8? Just tested against the PHP 8.0-beta.1 docker image and
memory usage matches PHP 7.4
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