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Bug #43946 open_basedir tremendously degraded performance on FreeBSD
Submitted: 2008-01-27 22:26 UTC Modified: 2008-01-29 21:22 UTC
Votes:1
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:1 (100.0%)
From: hugo at barafranca dot com Assigned:
Status: Not a bug Package: Safe Mode/open_basedir
PHP Version: 5.2.5 OS: FreeBSD 7.0-RC1 amd64
Private report: No CVE-ID: None
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From: hugo at barafranca dot com
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 [2008-01-27 22:26 UTC] hugo at barafranca dot com
Description:
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Reference: http://lists.freebsd.org/pipermail/freebsd-performance/2008-January/003096.html

The difference: http://www.barafranca.com/open_basedir.png (when open_basedir was disabled is obvious)



Reproduce code:
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Expected result:
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Actual result:
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 [2008-01-28 00:12 UTC] johannes@php.net
The realpath() function is quite slow with FreeBSD's libc implememntation, but we need to get the real name (without symlinks and similar stuff) of a file name to be opened for doing the open_basedir check. Nothing we can easily fix but we are awae of the problem and are  open for good patches. The best advise i can give you is to try to reduce the amount of include/require[_once] calls. 
 [2008-01-29 21:22 UTC] rasmus@php.net
Try increasing the size of the realpath cache.

eg.

realpath_cache_size=128k

in your .ini and see if that helps.
 
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