Re: [libvirt] Release of libvirt-0.6.4
On Thu, 04 Jun 2009 22:32:00 +0100, Daniel P. Berrange wrote:
Great, this confirms my thought. We asked for a 99 ms timeout, but
poll
returned significantly sooner than we asked for - approx 60-80 ms. So
when we then ncompare the elapsed time, with scheduled timer, we don't
see the expiry.
I suspect that Mandriva is either using a lower HZ for the kernel, or do
not have the hi-res timers or tickless feature.
That's correct, Mandriva's server kernel is using 100 hz:
$ uname -a
Linux n4.mandriva.com 2.6.22.12-server-1mdv #1 SMP Tue Nov 20 09:35:09 EST 2007 i686
Intel(R) Xeon(TM) CPU 2.80GHz GNU/Linux
$ zgrep HZ /proc/config.gz
CONFIG_NO_HZ=y
CONFIG_HZ_100=y
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
CONFIG_MACHZ_WDT=m
--
Frederik Himpe