On 18/09/2015 12:54, Christian Borntraeger wrote: > > -/* halt polling only reduces halt latency by 5-7 us, 500us is enough */ > > -static unsigned int halt_poll_ns = 500000; > > +/* Architectures should define their poll value according to the halt latency */ > > +static unsigned int halt_poll_ns = KVM_HALT_POLL_NS_DEFAULT; > > Yes, I prefer this over disabling it via Kconfig. There are benchmarks which > benefit from polling on s390. Furthermore it seems that the latency > strongly depends on timing of the architecture so making it per arch is > probably the right thing to do. Perhaps a #ifndef is better than replicating the 500us default in all architectures? Or should the default be 0? Paolo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
