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[Xen-users] Xen 4.1 and 3.0 kernel CPU performance
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| Subject: | [Xen-users] Xen 4.1 and 3.0 kernel CPU performance |
| From: | Kommeri Jukka <jukka.kommeri@xxxxxxxx> |
| Date: | Sat, 15 Oct 2011 11:21:52 +0300 |
| Delivery-date: | Mon, 17 Oct 2011 04:29:50 -0700 |
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Hello all,I have been running different benchmarks on paravirtualized domU. I have run into strange performance drops with CPU intesive benchmarks (64-bit BurnInSSE & 64-bit Linpack test). With Linpack test the performance of Xen is 90% of hardware where KVM is only about 1-2% worse than hardware. This is something new to me as I am used to better performance with older Xen versions. I have a Dell R410 with two Xeon E5520 processors and I am running Ubuntu Lucid on both domU and dom0. The Xen settings are pretty much default, though I did try varying credit scheduler weights without any success. Has anybody else noticed the same or have I just forgot something essential from my kernel? Best regards, Jukka Kommeri _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users |
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