ZGC and 1G pages?

Thomas Stüfe thomas.stuefe at gmail.com
Mon May 8 08:50:24 UTC 2023


Hi,

ZGC, on Linux, seems only compatible with 2M pages. Seeing that ZGC is
often used with very large heaps, is support for 1GB pages planned?

Especially if one disregards uncommitting (-ZUncommit), 1G pages could be a
speed boost for customers with gigantic heaps, as well as reduce their
number of VMAs.

Thanks, Thomas
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