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[Xen-users] Slow (RAM?) performance using Xen (3.2.3) kernel -- dual AMD
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| Subject: | [Xen-users] Slow (RAM?) performance using Xen (3.2.3) kernel -- dual AMD Opteron (h2000m) |
| From: | "Eclipse Webmaster (Denis Roy)" <webmaster@xxxxxxxxxxx> |
| Date: | Fri, 04 Dec 2009 11:07:10 -0500 |
| Delivery-date: | Fri, 04 Dec 2009 08:08:17 -0800 |
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Greetings,I have 3 SLES 10 SP3 servers running Xen (3.2.3). The motherboard is a Tyan S3992 h2000M and I have dual quad-core AMD Opterons wit 8GiB RAM. The board's BIOS is up to date. When I boot the Xen kernel, memory performance seems very slow: $ time memhog 100m mbind: Function not implemented get_mempolicy: Function not implemented .......... real 0m1.117s user 0m0.148s sys 0m0.944s With the non-Xen SMP kernel, the performance is par with all other servers: $ time memhog 100m .......... real 0m0.222s user 0m0.104s sys 0m0.108sDoes anyone have a clue why this is happening? I've tried various memory settings in the BIOS, but no apparent change occurs. Thanks! _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users |
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