[12] RFR: 8215555: TieredCompilation C2 threads can excessively block handshakes

[Claes Redestad]

On 2018-12-20 12:00, Nils Eliasson wrote:
> Looks great!

Thanks!
>
> I might add that Robbin has a patch that makes the stub generation 
> happen in native, like normal compilations. So we are fixing the 
> problem from both ends.

Yes, fixing that would be great, but is more intrusive and should
be deferred to 13. Even greater if stub generation could be done
lazily on-demand so that C2 doesn't need to block itself for ~10ms
on startup. ;-)

/Claes