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Bugs for Performance problem
ID# Date Last Modified Type Status PHP Version OS Summary Assigned
27215
(edit)		 2004-02-10 20:19 UTC 2004-06-11 09:07 UTC Bug Closed 5CVS-2004-02-10 (dev) Redhat 9 include in php5 is very slow  
27275
(edit)		 2004-02-16 07:38 UTC 2004-03-15 10:12 UTC Bug Closed 5CVS-2004-02-16 (4CVS) * Array->String cast takes serious performance hit, leaks like crazy  
27758
(edit)		 2004-03-29 15:05 UTC 2004-06-03 12:00 UTC Bug Closed 5CVS-2004-03-29 (dev) Windows 2000 SP4 High memory usage/leak  
28866
(edit)		 2004-06-21 13:15 UTC 2005-02-15 11:30 UTC Bug Closed 5.0.0RC3 Linux 2.4 / glibc 2.3 array of objs filling slowness  
29255
(edit)		 2004-07-19 12:03 UTC 2005-02-17 13:03 UTC Bug Closed 5.0.0 Windows 2000 Stat much slower on network files in PHP5  
30295
(edit)		 2004-09-30 23:23 UTC 2006-01-01 21:54 UTC Bug Closed 5CVS, 4CVS (2005-06-20) * array_key_exists() makes a copy of the given array  
31332
(edit)		 2004-12-29 12:30 UTC 2005-01-16 09:51 UTC Bug Closed 4CVS, 5CVS (2005-01-04) * unserialize() works terribly slow on huge strings compared to 4.3.9  
31515
(edit)		 2005-01-12 13:48 UTC 2005-02-22 01:24 UTC Bug Closed 5.0.3 Linux 2.4.28 (Gentoo) scandir() is slower than user-function  
33070
(edit)		 2005-05-19 17:22 UTC 2005-06-05 20:06 UTC Bug Closed 5.*, 4.* Linux 2.6.10 kernel bzdecompress inefficient iliaa
35054
(edit)		 2005-11-01 18:41 UTC 2005-11-01 23:13 UTC Bug Closed 4.4.1RC1 Linux Heavy "Random" Lag During foreach loop  
35658
(edit)		 2005-12-13 12:57 UTC 2005-12-13 13:44 UTC Bug Closed 5.1.1 Windows XP date function slower than in 5.0.5  
37563
(edit)		 2006-05-23 17:16 UTC 2006-05-25 22:39 UTC Bug Closed 5CVS-2006-05-23 (snap) Linux array_key_exists performance is poor for &$array ilia
38812
(edit)		 2006-09-13 15:58 UTC 2006-09-20 00:29 UTC Bug Closed 5CVS-2006-09-13 (snap) Linux (SuSE 9.2) array_key_exists is ~200x slower than 5.1.x  
40002
(edit)		 2007-01-02 19:47 UTC 2007-01-09 15:07 UTC Bug Closed 5.2.0 Windows XP 32bit Try/Catch performs poorly dmitry
40261
(edit)		 2007-01-28 00:30 UTC 2007-03-20 07:14 UTC Bug Closed 5.2.0 All Extremely slow data handling due to memory fragmentation dmitry
40809
(edit)		 2007-03-14 23:51 UTC 2007-03-20 06:48 UTC Bug Closed 5.2.1 Linux Poor perfomance of ".=" dmitry
41713
(edit)		 2007-06-16 16:48 UTC 2007-07-25 11:15 UTC Bug Closed 5.2CVS-2007-07-12 win32 only Persistent memory consumption since 5.2 dmitry
44069
(edit)		 2008-02-07 13:39 UTC 2008-02-14 15:20 UTC Bug Closed 5.2.5 * Huge memory usage with concatenation using . instead of .= dmitry
44160
(edit)		 2008-02-18 19:45 UTC 2009-09-21 20:08 UTC Bug Closed 5.2.5 Windows Server 2003 Windows Scheduled Task Hangs when using php-win.exe  
45042
(edit)		 2008-05-19 22:13 UTC 2008-05-26 20:17 UTC Bug Closed 5.2.6 Vista (any version) Vista & mySQL Extension = slowdown when PHP finalizes  
45942
(edit)		 2008-08-28 17:36 UTC 2008-09-03 21:05 UTC Bug Closed 5.2.6 Fedora Core 6 D_FILE_OFFSET_BITS=64 causes PHP to run at half speed  
46039
(edit)		 2008-09-10 07:00 UTC 2008-11-19 14:45 UTC Bug Closed 5.2.6 Mac OS X 10.5.4 ArrayObject iteration is slow helly
46102
(edit)		 2008-09-17 04:17 UTC 2008-10-31 15:55 UTC Bug Closed 5.2.6 Windows XP getenv() memory leak  
46103
(edit)		 2008-09-17 04:26 UTC 2017-10-10 16:11 UTC Bug Closed 5.2.6 Windows XP ReflectionObject memory leak  
47643
(edit)		 2009-03-13 11:49 UTC 2010-11-01 18:18 UTC Bug Closed 5.*, 6CVS (2009-04-13) * array_diff() takes over 3000 times longer than php 5.2.4 felipe
50086
(edit)		 2009-11-05 09:11 UTC 2009-11-05 10:39 UTC Bug Closed 6SVN-2009-11-05 (SVN) Solaris 5.10 (SPARC) [PATCH] - Avoid invoking setitimer when timeouts have been disabled  
50436
(edit)		 2009-12-10 10:15 UTC 2016-12-17 14:35 UTC Bug Closed 6SVN-2009-12-10 (SVN) Solaris 5.10 (SPARC) [PATCH] - Improving multi-threaded performance by propagating TSRMLS_C nikic
50486
(edit)		 2009-12-16 01:30 UTC 2020-03-04 14:45 UTC Req Closed 5.3SVN-2009-12-16 (SVN) Solaris 10 [PATCH] optimization for safe_address on exotic platforms dmitry
50894
(edit)		 2010-02-01 06:13 UTC 2015-04-06 15:42 UTC Req Closed 5.*, 6 * no-op cast triggers copy-on-write (ternary operator triggers copy too) dmitry
51523
(edit)		 2010-04-10 01:06 UTC 2010-04-10 20:24 UTC Bug Closed Irrelevant Linux Memory leak on fread()  
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