RFR (XS) 8238247: CTW runner should sweep nmethods more aggressively

[Aleksey Shipilev]

On 2/7/20 12:11 PM, Volker Simonis wrote:
> I wonder if there other possibilities  to make sweeping these methods
> more efficient? Maybe setting -XX:MinPassesBeforeFlush=0 and
> -XX:NmethodSweepActivity=2000 can help a little bit?

My original suggestion was basically about that. But now I think ditching the compiled methods after
we are done with them is conceptually cleaner in current framework. I prefer to have the simple
change that has immediate improvement first, and only then consider if we can make CTW universally
better by reconsidering how CTW and method sweeper play with each other.

-- 
Thanks,
-Aleksey