On 16/12/2014 13:15, Marcelo Tosatti wrote: > > Let's add guest_tsc - tsc_deadline to the tracepoint. This should > > simplify the tuning of the parameter. > > total_delay is very close to that, except the summands are > > 1000 + 1000 + ... + "remainder" > > Yes?
Almost: guest_tsc - tsc_deadline will be negative if the vmentry overshot the original tsc_deadline. In that case, total_delay will be zero. > BTW its very easy to tune the parameter with the kvm-unit-test test > (the optimal value is clear). I'll write a document. Nice benefit of the test. :) Paolo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
