Hi all,
I am experiencing issue on freshly upgraded Debian Squeeze with Xen
4.0.1 from Debian repositories.
After upgrade the system with Xen was slow - no iowaits only Steal time
was high. I tried workarounds regarding ACPI - only acpi=off was working
but the performance decrease was quite large due to only one CPU core
was active at that time.
The last workaround I am running right now is to set dom0_cpus to 1 in
xend-config.sxp. But this set dom0 cpus except the first one to paused
state and the dynamic configuration changes are not propagated to domUs
(e.g. memory [in/de]crease).
Can anybody tell me how to handle dom0_cpus correctly and what can be
the issue with multiprocessor setup of xend - the high cpu usage?
I already sent bugreport to Debian [1], but with no answer till now.
Thanks.
[1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=683170
Best regards,
--
Peter Viskup
