I posted on this back on Jan 29.
is there a way to create CPU pools at boot time so that the hosts devined
in /etx/xen/auto* will be lauched within right CPU Pool ?
I use /etc/rc.local to call a script that does the following:
Let’s suppose I have a dual-socket 8-core CPU machine with HT enabled. 32 logical CPUs, right?
I use those hypervisor command line configs and some commands in rc.local to end up with the following:
# xl cpupool-list
Name CPUs Sched Active Domain count
Pool-dom0 4 credit y 1
Pool-CPU1 12 credit y 5
Pool-CPU2 16 credit y 3
dom0 ends up being assigned the first 2 physical cores on the first CPU (4 logicals)
I then have cpu pools for the remainder of the first cpu and then the whole entire second CPU.
This gives me plenty of dedicated horsepower for handling IO and s/w RAID ops.
xl cpupool-numa-split
xl cpupool-rename Pool-0 Pool-dom0;
xl cpupool-cpu-remove Pool-dom0 4
xl cpupool-cpu-remove Pool-dom0 5
.
.
.
xl cpupool-create name=\"Pool-CPU1\" cpus=["4","5","6","7","8","9","10","11","12","13","14","15"]
xl cpupool-create name=\"Pool-CPU2\" cpus=["16","17","18","19","20","21","22","23","24","25","26","27","28","29","30","31"]
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