performance

[feles]

hi,
when I try to make a performance test with ab server gives an error I use an index file of 8MB sized, the error is below, anybody here knows with which configuration can I overcome this error.

[root@ns lws]# /home/w2/bin/ab -n 10000 -c 50 -k http://192.168.75.128:8088/
This is ApacheBench, Version 2.0.40-dev <$Revision: 1.121.2.8 $> apache-2.0
Copyright (c) 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Copyright (c) 1998-2002 The Apache Software Foundation, http://www.apache.org/

Benchmarking 192.168.75.128 (be patient)
Send request timed out!
Send request timed out!
Send request timed out!
Send request timed out!
Send request timed out!
Send request timed out!
Send request timed out!
Send request timed out!
Send request timed out!
Send request timed out!
Send request timed out!
Send request timed out!
Send request timed out!
Send request timed out!
Send request timed out!
Send request timed out!
Send request timed out!
Send request timed out!
Send request timed out!
Send request timed out!
...........................
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Server Software: LiteSpeed
Server Hostname: 192.168.75.128
Server Port: 8088

Document Path: /
Document Length: 8521775 bytes

Concurrency Level: 50
Time taken for tests: 608.265587 seconds
Complete requests: 10000
Failed requests: 950
(Connect: 0, Length: 950, Exceptions: 0)
Write errors: 0
Keep-Alive requests: 9100
Total transferred: 240997972 bytes
HTML transferred: 238741172 bytes

[mistwang]

Looks like it was being throttled.
Please make sure "Per client limit" is configured properly for your test, when you do performance test from one client machine, you should turn off per client bandwidth and request throttling, increase the "soft" and "hard" connection limit. Those configurations are under "Server"->"security" tab.
For more information, please read
http://www.litespeedtech.com/docs/HowTo_QA.html#qa_perf

Best regards,
George Wang