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Re: [Xen-users] Performance issues
| To: | xen-users@xxxxxxxxxxxxxxxxxxx |
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| Subject: | Re: [Xen-users] Performance issues |
| From: | Stephan Austermühle <au@xxxxxxx> |
| Date: | Wed, 12 Apr 2006 07:22:58 +0200 |
| Delivery-date: | Tue, 11 Apr 2006 22:23:40 -0700 |
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Hi Randy!
Randy Thelen schrieb:
>> native domU loss
>> make -j4 553s 666s -17%
>> make -j2 565s 713s -22%
>> make 1,026s 1,199s -14%
>
> This is very interesting, Stephan. Could you run a test with dom0
> compiling the kernel?
I have setup a dom0 with 512 MByte RAM and got the following results:
native dom0 loss
make -j4 553s 778s -29%
make -j2 565s 1,458s -61% (!)
make 1,026s 1,434s -28%
These results look quite strange to me -- the dom0 performance is worse
than the domU one. I ran the compile sequence with '-j2' three times --
the remarkable bad result is reproducable. It would be nice if somebody
can confirm my results.
Anybody having an explanation for that?
Stephan
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