In what order are the CPUs discovered?

[Henry Pepper]

Hi

Where can I find out, the order in which the CPUs are discovered?

When having:
  - Multiple sockets.
  - Multiple cores.
  - Hyper-threading (HTT).

E.g. a single Socket with two cores and HTT enabled on both cores.
This would be 4 CPUs.
Would cpu0 and cpu1 be the first core, and cpu2 and 3 the second core?

What happens if HTT is disabled on core0 and enabled on core1?
 Would I see cpu0, cpu2,cpu3?
  or would it be cpu0, cpu1, cpu2 ?

Any suggestions on where I could find information on this would be appreciated.

  Thanks

 Henry
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How do I prevent one guest from hogging the disk I/O and preventing other guests from accessing the disk?

[Henry Pepper]

Hi

I'm running some tests on a KVM setup, based on RHEL 6 beta2.

When running a disk test in one guest, then no other guests seems to
get any disk I/O done.

How can I configure the KVM to ensure that some sort of round robin or
other sharing is being done?

  Thanks

Henry
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virsh 0.8.2 fail to reboot a domain

[Henry Pepper]

Hi

I get a failure when I try to reboot a DomU:
# virsh reboot fc13_1
error: Failed to reboot domain fc13_1
error: this function is not supported by the connection driver: virDomainReboot

I haven't tried this command before.

Does it have any relation to https://bugzilla.redhat.com/show_bug.cgi?id=624195

I'm running
 - Fedora release 13 (Goddard)
 - Linux testbay 2.6.34.7-56.fc13.x86_64 #1 SMP Wed Sep 15 03:36:55
UTC 2010 x86_64 x86_64 x86_64 GNU/Linux
# virsh version
Compiled against library: libvir 0.8.2
Using library: libvir 0.8.2
Using API: QEMU 0.8.2
Running hypervisor: QEMU 0.12.5

  Thanks

 Henry
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Any suggestions on where I can find description of how the network bridging work

[Henry Pepper]

Hi

I'm trying to figure out how the network bridging work, focusing on:
 - How to create a network where the DomU can get a dhcp address from
the central network.
 - How to setup the domain network so that the DomU eth0 and eth1 goes
to the coresponding physical nics, without any chance of crosstalk
between eth0 and eth1
 - Is it possible to do a routing network in KVM as can be done in Xen?

I appreciate any hint on documentation or insights.

  Thanks

Henry
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