RFR/RFC: Tax-and-Spend allocation pacing

[Aleksey Shipilev]

On 03/09/2018 11:47 AM, Roman Kennke wrote:
> I wonder what is needed to make this work with partial and traversal GC?
> Or would that only be the boilerplate stuff like in
> init_concurrent_normal_cycle() to set up pacing? Because the other hooks
> (to report evacs and intercept allocs) are already in their right places?

It is apparently easy, if we rewire the pacer to accept these phases.

New version of the patch does this, along with other improvements:
  http://cr.openjdk.java.net/~shade/shenandoah/tax-and-spend/webrev.02/

Still passes hotspot_gc_shenandoah, and performance numbers are still good. I am going to run a few
other benchmarks to be extra sure, but I think this is ready to go.

Thanks,
-Aleksey