Parallel AlwaysPreTouch

Alen Vrečko alen.vrecko at gmail.com
Sun Dec 1 21:03:55 UTC 2019


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.

Thank you.
Alen


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