On Thu, 10 Sep 2020 02:28:43 GMT, Lin Zang <lz...@openjdk.org> wrote:
> - enable parallel heap inspection for ZCollectedHeap > - preliminary evaluation: > Time of jmap histo on 8GB heap with ~5GB objects > * before: 7.103s > * after : 2.734s (with 4 parallel threads) Just looked at this briefly. My initial comment is that we need to avoid all the code duplicated from ZHeapIterator and isolate all this a bit better. Perhaps folding everything into one iterator, that can be used by both object_iterate() and parallel_object_iterator(). I'll take a closer look, and perhaps try some alternatives, when I get a chance. ------------- PR: https://git.openjdk.java.net/jdk/pull/103
