On 28/02/2018 00:55, Alexander Graf wrote: > > > On 27.02.18 10:52, Gonglei (Arei) wrote: >> Hi all, >> >> Guests could achive good performance in 'Message Passing Workloads' >> scenarios when knowing the X86_FEATURE_MWAIT feature which is presented by >> qemu. >> the reason is that after knowing that feature, >> the guest could use mwait method, which saves VMEXIT, >> to do idle, and achives high performace in latency-sensitive scenario. >> >> Is there any plan for this patch? >> >> Or May I send a updated version based on yours? @Alex? > > Oh, did I drop the ball on this one? If that's the case, sure, go ahead.
Hi, it is probably best to implement this feature based on the HINT_DEDICATED cpuid bit that Wanpeng Li is adding. Paolo
