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ibm xeon dual processors-kernel problem

Linux Kernel, Network, and Services configuration.
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e116523
Posts: 1
Joined: 2005-09-12 08:53
Location: Turkey

ibm xeon dual processors-kernel problem

#1 Post by e116523 »

Hi all,

We are load testing the web servers with apache2 on IBM
eSeries Server (Intel Xeon 2-cpu). The test page makes an HTTP request
through PHP that processes an LDAP get entry on a remote server.

First we tried kernel-image-2.4.27-2-386 for single-cpu and we get almost stable results. (450 requests per second)

Then we tried kernel-image-2.6.8-2-686-smp for 2-cpu. We used apt-get install kernel-image-2.6.8-2-686-smp command. New test results were unstable. (0-1000 requests per seconds). Sometimes we waited for seconds for a single line result! It was very fast sometimes. There is no problem on ldap side. We tried 2.4....-smp too, nothing changed.

How can we be sure that we use dual processors properly with debian, whether our kernel configuration is true. Any comments related to hardware, debian, apache configurations are appreciated.

Regards
Ozgur Turkarslan

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