[Xen-devel] Webserver throughput in xen-environment

[Fasiha Ashraf <feehapk@xxxxxxxxxxx>]

Hi

 

I am running a web server in one of my xen guests. Using ab as a load generating tool i have collected some throughput data for different file sizes like 5KB, 10KB and 100KB. One thing that i have noticed strange here is throughput drops down in a virtual http server, it happends in case of 5KB and 10KB files.

Also it takes longer to run tests in virtual environment.

	Doc Size	No. of Requests	Concurrency	Keep-alive	Time taken for tests(sec)	Requests/sec	Transfer rate (KB/s)	Transfer rate (Mb/s)	CPU%
MaxKeepAliveRequests= 1000,   ServerLimit= 1024,   MaxClient= 1024
	5KB	1,000,000	64	On	265.67	3764.03	19992.21	156.19	90 - 100
	10KB	1,000,000	64	On	284.37	3516.58	36226.45	283.02	90 - 100
	100KB	1,000,000	64	On	875.91	1141.67	114516.63	894.66	90 - 100
	5KB	1,000,000	128	On	264.26	3784.13	20099.01	157.02	90 - 100
	10KB	1,000,000	128	On	292.47	3419.18	35223.16	275.18	90 - 100
	100KB	1,000,000	128	On	877.08	1140.14	114366.72	893.49	90 - 100

Regards,
Fasiha Ashraf

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