2017-08-10 19:02+0800, Lan Tianyu: > On 2017年08月10日 18:26, Daniel P. Berrange wrote: >> On Thu, Aug 10, 2017 at 06:08:07PM +0800, Lan Tianyu wrote: >>> Intel Xeon phi chip will support 352 logical threads. For HPC >>> usage case, it will create a huge VM with vcpus number as same as host >>> cpus. This patch is to increase max vcpu number to 352. >> >> If we pick arbitray limits based on size of physical CPUs that happen >> to be shipping today, we'll continue the cat+mouse game forever trailing >> latest CPUs that vendors ship. >> >> IMHO we should pick a higher number influenced by technical constraints >> of the q35 impl instead. eg can we go straight to something like 512 or >> 1024 ? > > Sure. 512 should be enough and some arrays is defined according to max > vcpu number.
Hm, which arrays are that? I was thinking it is safe to bump it to INT_MAX as the number is only used when setting global max_cpus. Thanks.
