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[Xen-devel] Webserver throughput in xen-environment

To: xen <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] Webserver throughput in xen-environment
From: Fasiha Ashraf <feehapk@xxxxxxxxxxx>
Date: Tue, 22 Dec 2009 18:57:09 +0530 (IST)
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
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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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