Re: PHP with open_basedir performance problem

Hugo Silva wrote:
Miroslav Lachman wrote:
Hi all,

I found a painful performance problem with Apache + PHP 5 when
open_basedir directive is enabled.
Application performance drops by more than 50% with open_basedir enabled.
There is also significant disproportion between usr / sys CPU load. (sys
is much higher than usr)
I do not know if this is problem on FreeBSD side or in PHP code itself.
This problem exists on FreeBSD 6 and 7 (maybe older versions too - I did
not check).
I tested both shedulers on FreeBSD 7, no big difference (application
performance is little better with 4BSD).
Is there anyone with enough knowledge and time to look at it?

This problem affects Mac OS X as well, but does not seem to appear on Linux.
http://lists.apple.com/archives/macos-x-server/2006/Nov/msg00623.html

I too have seen this, sys% is so MUCH higher and jumps from about 30% to 70% and higher all the time. In my case it's like 3% user time, 30-70% system time. I will try disabling open_basedir on one of the webservers and report back.

Best regards,

Hugo
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From 30-70% to 3%. What a difference!

Hugo
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