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[Xen-devel] another scheduler problem, on x86_64 only?
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| Subject: | [Xen-devel] another scheduler problem, on x86_64 only? |
| From: | Andrew Theurer <habanero@xxxxxxxxxx> |
| Date: | Tue, 12 Jul 2005 16:22:14 -0500 |
| Delivery-date: | Tue, 12 Jul 2005 21:21:03 +0000 |
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I Noticed that dom0 is only getting about 50% cpu after seeing about 1/2
the performance on some benchmarks, xen0 vs baremetal. I just ran a
quick cpu bound script:
while [ 1 ]; do x=1; done&
..and I get this cpu util:
total domains
------- ----------
cpu0: [050.7] d0-0[050.7]
cpu0: [049.8] d0-0[049.8]
cpu0: [049.8] d0-0[049.8]
cpu0: [049.8] d0-0[049.8]
Anyone else seen this on x86_64 dom0 with BVT?
I do not see this in i386 with BVT.
[root@e326-1 src]# xm dmesg | grep sched
(XEN) Using scheduler: Borrowed Virtual Time (bvt)
[root@e326-1 src]# xm dmesg | grep -i changeset
Latest ChangeSet: Tue Jul 12 08:19:10 2005
9f6057761c8f485b1948fdd3308ae10e3ea66ad5
-Andrew
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