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

[Volker Simonis]

Sure. As I wrote, I'm completely fine with the change (i.e. consider
it reviewed). Everything else were just some random thoughts for
future improvements :)

On Fri, Feb 7, 2020 at 3:16 AM Aleksey Shipilev <shade at redhat.com> wrote:
>
> 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
>