[libGD] #232 [Task opened] gdFontCacheMutex degrades performance
| From: | gd-bugs at lists dot php dot net | Date: | Tue, 09 Nov 2010 18:59:39 +0000 |
| Subject: | [libGD] #232 [Task opened] gdFontCacheMutex degrades performance | ||
| Groups: | php.gd.bugs | ||
| Request: | Send a blank email to php-gd-bugs+get-798@lists.php.net to get a copy of this message | ||
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A new Flyspray task has been opened. Details are below.
User who did this - solve media (solvemedia)
Attached to Project - libGD
Summary - gdFontCacheMutex degrades performance
Task Type - Feature Request
Category - Freetype
Status - Unconfirmed
Assigned To -
Operating System - All
Severity - Medium
Priority - Normal
Reported Version - 2.0.35
Due in Version - Undecided
Due Date - Undecided
Details - in a multi-threaded application which does a lot of
gdImageStringFTEx()ing, lock contention on gdFontCacheMutex
degrades performance.
removing the mutex, and using a per-thread cache and library,
improves performance by 2x (in our application, your mileage may vary).
patch for gdft.c attached.
More information can be found at the following URL:
http://bugs.libgd.org/?do=details&task_id=232
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