Re: (subset) [PATCH v2 00/60] KVM: PPC: Book3S HV P9: entry/exit optimisations

2021-08-27 Thread Michael Ellerman
On Thu, 12 Aug 2021 02:00:34 +1000, Nicholas Piggin wrote: > This reduces radix guest full entry/exit latency on POWER9 and POWER10 > by 2x. > > Nested HV guests should see smaller improvements in their L1 entry/exit, > but this is also combined with most L0 speedups also applying to nested > entr

Re: [PATCH v2 00/60] KVM: PPC: Book3S HV P9: entry/exit optimisations

2021-08-16 Thread Athira Rajeev
> On 11-Aug-2021, at 9:30 PM, Nicholas Piggin wrote: > > This reduces radix guest full entry/exit latency on POWER9 and POWER10 > by 2x. > > Nested HV guests should see smaller improvements in their L1 entry/exit, > but this is also combined with most L0 speedups also applying to nested > ent

[PATCH v2 00/60] KVM: PPC: Book3S HV P9: entry/exit optimisations

2021-08-11 Thread Nicholas Piggin
This reduces radix guest full entry/exit latency on POWER9 and POWER10 by 2x. Nested HV guests should see smaller improvements in their L1 entry/exit, but this is also combined with most L0 speedups also applying to nested entry. nginx localhost throughput test in a SMP nested guest is improved ab