Andre Przywara, le Fri 03 Jul 2009 16:41:56 +0200, a écrit :
-smp 16 -cpu host,cores=8
That means 8 cores with 2 threads each, thus 16 threads? Ok, that can be
later generalized into for instance
-smp 16 -cpu host,nodes=2,sockets=2,cores=2
to define 2 NUMA nodes of 2 sockets of 2 cores, each
currently SMP guests happen to see n vCPUs as n different sockets.
Some guests (Windows comes to mind) have license restrictions and refuse
to run on multi-socket machines.
So lets introduce a cores= parameter to the -cpu option to let the user
specify the number of _cores_ the guest should
Samuel Thibault wrote:
Andre Przywara, le Fri 03 Jul 2009 16:41:56 +0200, a écrit :
-smp 16 -cpu host,cores=8
That means 8 cores with 2 threads each, thus 16 threads?
No, that meant: 16 vCPUs total with 8 cores per physical packages. I
don't have any notion for threads in the current code,
Paul Brook wrote:
currently SMP guests happen to see n vCPUs as n different sockets.
Some guests (Windows comes to mind) have license restrictions and refuse
to run on multi-socket machines.
So lets introduce a cores= parameter to the -cpu option to let the user
specify the number of _cores_ the
Andre Przywara, le Sat 04 Jul 2009 01:28:43 +0200, a écrit :
Maybe one could describe cores, threads, sockets and nodes in -smp and
declare the memory topology only in -numa.
Mmm, I'd rather just describe both in a -topology option.
Samuel
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On Saturday 04 July 2009, Andre Przywara wrote:
Paul Brook wrote:
currently SMP guests happen to see n vCPUs as n different sockets.
Some guests (Windows comes to mind) have license restrictions and refuse
to run on multi-socket machines.
So lets introduce a cores= parameter to the -cpu
