RFR: DRAFT: Expand old on demand [v22]
Kelvin Nilsen
kdnilsen at openjdk.org
Sat Apr 22 18:07:35 UTC 2023
> This PR describes several proposed changes to dynamically adjust the sizes of old-gen and young-gen. In general, the objective is to keep old-gen as small as possible so that there is an abundance of memory available for the young-gen allocation runway.
>
> As currently drafted, there are regression failures. This DRAFT PR is published for the purpose of facilitating a careful code review.
Kelvin Nilsen has updated the pull request incrementally with one additional commit since the last revision:
More fixes to verification of deferred generation accounting
During promote in place, certain regions are re-affiilated old before the
total amounts of memory consumed by these regions have been tallied into
the respective region's totals.
-------------
Changes:
- all: https://git.openjdk.org/shenandoah/pull/248/files
- new: https://git.openjdk.org/shenandoah/pull/248/files/3bce0b19..5ab4fd1f
Webrevs:
- full: https://webrevs.openjdk.org/?repo=shenandoah&pr=248&range=21
- incr: https://webrevs.openjdk.org/?repo=shenandoah&pr=248&range=20-21
Stats: 15 lines in 1 file changed: 13 ins; 0 del; 2 mod
Patch: https://git.openjdk.org/shenandoah/pull/248.diff
Fetch: git fetch https://git.openjdk.org/shenandoah.git pull/248/head:pull/248
PR: https://git.openjdk.org/shenandoah/pull/248
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