Re: [libvirt] [PATCH RFC]: Support numad

On Tue, Feb 28, 2012 at 10:10:50PM +0800, Osier Yang wrote: > numad is an user-level daemon that monitors NUMA topology and > processes resource consumption to facilitate good NUMA resource > alignment of applications/virtual machines to improve performance > and minimize cost of remote memory latencies. It provides a > pre-placement advisory interface, so significant processes can > be pre-bound to nodes with sufficient available resources. > > More details: http://fedoraproject.org/wiki/Features/numad > > "numad -w ncpus:memory_amount" is the advisory interface numad > provides currently. > > This patch add the support by introducing new XML like: > <numatune> > <cpu required_cpus="4" required_memory="524288"/> > </numatune> Isn't the usual case going to be the vcpus and memory in the guest? IMO we should default to passing those numbers to numad if required_cpus and required_memory are not provided explicitly.