On 09/05/2017 18:03, Bandan Das wrote: >> I tested this with api/dirty-log-perf, and nested PML is more than 3 >> times faster than pml=0. I want to do a few more tests because I don't >> see any PML full exits in the L1 trace, but it seems to be a nice >> improvement! > > Thanks for testing! Regarding the PML full exits, I did notice their > absence. I induced it artifically in my testing with a lower index > and it seemed to work fine. Yes, tracing showed that it's because the guest's EXTERNAL_INTERRUPT exits are too frequent. Paolo
