Re: [PATCH v4 1/2] KVM: LAPIC: Optimize timer latency consider world switch time

From: Paolo Bonzini
Date: Wed Jul 03 2019 - 10:13:34 EST

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On 03/07/19 02:48, Wanpeng Li wrote:
> Hi Paolo, how about this patchset? Patch 2/2 is easy to take, do you
> have more concern about patch 1/2?

I don't know. It seems somewhat hard to tune and in cyclictest it only
happens for preemption_timer=N. Are you using preemption_timer=N
together with the LAPIC-timer-on-service-CPU patches?

Paolo

Next message: tip-bot for Arnaldo Carvalho de Melo: "[tip:perf/core] perf symbols: We need util.h in symbol-elf.c for zfree()"
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