Bug #68565 [NEW]: Counter for wasted memory in Opcache is only int
| From: | kontakt at adrianslowik dot pl | Date: | Mon, 08 Dec 2014 12:01:52 +0000 |
| Subject: | Bug #68565 [NEW]: Counter for wasted memory in Opcache is only int | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-188957@lists.php.net to get a copy of this message | ||
From: kontakt at adrianslowik dot pl
Operating system: Not relevant / Linux Gentoo
PHP version: 5.5.19
Package: opcache
Bug Type: Bug
Bug description:Counter for wasted memory in Opcache is only int
Description:
------------
When I set opcache.memory_consumption to 10240 (10Gb), it is possible to
have more than 2Gb of wasted memory.
The Wasted memory variable in code is stored in signed int instead of
size_t.
In fact I end up with negative amount of wasted memory and wasted memory
percentage, which is less than default 5% for scheduling the reload.
To replicate the problem set the opcache.memory_consumption to high
value (3Gb)
Use opcache_compile_file and opcache_invalidate in loop with the same
file until wasted memory rises above 2Gb
php.ini settings:
opcache.enable=1
opcache.enable_cli=0
opcache.memory_consumption=10240
opcache.interned_strings_buffer=16
opcache.max_accelerated_files=1048793
opcache.max_wasted_percentage=5
opcache.use_cwd=1
opcache.validate_timestamps=0
opcache.revalidate_freq=2
opcache.revalidate_path=1
opcache.save_comments=1
opcache.load_comments=1
opcache.error_log=/var/log/php-fpm.opcache.log
opcache.log_verbosity_level=1
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Edit bug report at https://bugs.php.net/bug.php?id=68565&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=68565&r=trysnapshot54
Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=68565&r=trysnapshot55
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=68565&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=68565&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=68565&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=68565&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=68565&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=68565&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=68565&r=support
Expected behavior: https://bugs.php.net/fix.php?id=68565&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=68565&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=68565&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=68565&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=68565&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=68565&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=68565&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=68565&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=68565&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=68565&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=68565&r=mysqlcfg