[ofa-general] Re: [GIT PULL] please pull ummunotify

[Ingo Molnar]

* Roland Dreier <rdreier at cisco.com> wrote:

>  > But yeah, I currently don't see a very nice match to perf counters.
> 
> OK.  It would be nice to tie into something more general, but I think 
> I agree -- perf counters are missing the filtering and the "no lost 
> events" that ummunotify does have.  And I'm not sure it's worth 
> messing up the perf counters design just to jam one more not totally 
> related thing in.

The filtering can be done and has been done - see Li Zefan's patchset 
that uses filter expressions to do per event in-kernel filtering.

The OOM DoS is a bug in your patches i think, which perfcounters solves 
;-)

	Ingo