Parallel AlwaysPreTouch

Thomas Schatzl thomas.schatzl at
Sun Dec 1 21:06:31 UTC 2019


On Sun, 2019-12-01 at 22:03 +0100, Alen Vrečko wrote:
> Hello, everyone.
> Looking at the code. It looks like ZGC uses a single threaded
> PreTouch. Both the G1 and Shenandoah use a parallel PreTouch.
> Any plans to make ZGC PreTouch parallel? Apologies if I missed
> something in the code. But I am seeing G1 do the pretouch much faster
> than ZGC for the same heap size.

  the change for this (
) is currently in review.


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