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</o:shapelayout></xml><![endif]--></head><body lang=DE link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hello everyone,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have a really odd problem bemachmarking a proxy which is running under Windows 2008 R2.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The web-polygraph clients and server as well as the DNS is running on some Ubuntu 10.04.3 Server 64-bit machines. Each machine is a VM on our ESXi server.<o:p></o:p></p><p class=MsoNormal>The proxy is installed on a Windows 2008 R2 system which is running a separated hardware. If we run the benchmark in that constelation we get a rate of about 60 hits/s. Not really satisfying.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>After that I installed our proxy on a SuSE Linux Enterprise 10 system - also running as a VM on the ESXi. The benchmark results of that constelation were quiet well and only limited by the ESXi hardware (the processors of the ESXi were at 100%).<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>We decided to create also a VM with Windows 2008 R2 and installed again our proxy there (maybe the problem is between the ESXi and the separated hardware), but got the same odd results of 60 hits/s. As our test needs a lot of entries in the routing table and as we were not sure how well 2008 can handle a large number of entries, we setup a Ubuntu machine as router/gateway contaning all the routing entries. Basically it worked, but the numbers didn't change even a little bit. So I also turned off the 2008 network auto-tuning. Also no difference to the runs before - still 60 hits/s.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I'm wondering if anyone of you had a similar experience.<o:p></o:p></p><p class=MsoNormal>Or maybe someone of you knows that Windows 2008 R2 bottleneck and how to eliminate it?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Regards,<o:p></o:p></p><p class=MsoNormal>Gerrit<o:p></o:p></p></div></body></html>