First connections of a siege are SLOW

[bhenry360]

Running Zend Server on an i5 LPAR with a Magento application (e-commerce site).

I can run a siege -c 30 http://domain.com/ and the first 30 connections will take forever to get their responses. 7-25 seconds each. Then all subsequent requests will get less than a second. (0.08 - 0.14 seconds each actually.) I'm not sure why the server takes so long to begin serving out responses.

Also, just lately now, if I run a siege for a very long time, eventually I'll start getting 'socket: connection timed out' messages. I have tweaked httpd.conf, fastcgi.conf and zend server component directives too, taking care to not set anything too aggressive. I'm shocked to see this bad performance.

We were having a terrible time with mysql on the i5 too and actually had to move it to a LPAR running RedHat. MySQL screams there with only 13 queries out of 100,000+ taking longer than two seconds. If I could just get the same performance out of Zend Server in PASE.

How can I check to see what IBM and Zend PTFs have been applied to the i5? On my Zend Server for the IBM I setup menu, I see nothing under Display Zend Server PTF status.

[bhenry360]

Well, the IBM docs have lead me where to check for the PTF fixes. I did not realized my user had the rights to run GO LICPGM
Unfortunately, I do not see any of the fixes applied I was looking for. I've seen I need to apply SI43224 and SI43243 allong with a few others. When I look at the list of applied PTFs I do not see any that start with an SI.

http://publib.boulder.ibm.com/infocente ... /index.jsp Installing Fixes > Verifying fix installation

[aseiden]

In fastcgi.conf you could set PHP_FCGI_CHILDREN=30

since you want 30 connections immediately.

Try it and let us know.

Alan

[zend_i5]

Did you install Zend Server community or professional license?

[bhenry360]

It is the professional license. I had PHP_FCGI_CHILDREN set to 50, so the number of initial connections was not an issue.