Re: [PATCH RFC] kvm: x86: add halt_poll module parameter

From: Jan Kiszka
Date: Thu Feb 05 2015 - 13:55:35 EST


On 2015-02-05 17:05, Paolo Bonzini wrote:
> This patch introduces a new module parameter for the KVM module; when it
> is present, KVM attempts a bit of polling on every HLT before scheduling
> itself out via kvm_vcpu_block.

Wouldn't it be better to tune this on a per-VM basis? Think of mixed
workloads with some latency-sensitive and some standard VMs.

Jan

--
Siemens AG, Corporate Technology, CT RTC ITP SES-DE
Corporate Competence Center Embedded Linux
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