Miroslav Lachman wrote:
Hi all,
I have performance problem with PHP after upgrading from PHP 5.1.4 to
newer version regardles if newer version is 5.1.6 or 5.2.0. I tested
both with same result.
I have two same servers (IBM x336 with dual Xeon 3GHz and 2GB RAM)
serving one webapplication (loadbalancing). Both machines are running
FreeBSD 6.0 SMP + Apache 2.0.59. If both machines have PHP 5.1.4,
everything is fine and load is about 1.5 (Apache is running 16-20
childs).
After upgrade to PHP 5.1.6 or 5.2.0, performance goes down - average
load is about 3-5 with peaks at 12-40 (in this peaks Apache starts to
run more childs, sometimes to MaxClients).
Both machines are serving identical content with same requests per
second, both versions of PHP are compiled from ports with same options.
Both have in loader.conf:
accf_data_load="YES"
accf_http_load="YES"
First of all you should upgrade the FreeBSD to 6.2-STABLE, since this
has a LOT of improvements in the overall system. I would recommend you
to disable HT too.
Regards,
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