Re: [RFC PATCH 0/7] Add support for monitoring guest TLB operations

Paolo Bonzini
2016-08-18T07:04:54Z

On 17/08/2016 19:20, Punit Agrawal wrote:
> > > Having the ability to monitor the usage of guest TLB invalidations in
> > > the host can be useful to diagnose performance issues on such systems.
> >
> > Are there hardware performance counters for these operations?
>
> That would have been ideal! There are PMU events defined for TLB
> accesses and refills but unhelpfully none of them track maintenance
> operations.

I guess the patches do make sense then. :)

Paolo