RFR: DRAFT: Expand old on demand [v18]

Kelvin Nilsen kdnilsen at openjdk.org
Thu Apr 20 18:59:33 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:

  Minor comment fixups following merge

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah/pull/248/files
  - new: https://git.openjdk.org/shenandoah/pull/248/files/23b8b396..8f212799

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah&pr=248&range=17
 - incr: https://webrevs.openjdk.org/?repo=shenandoah&pr=248&range=16-17

  Stats: 2 lines in 2 files changed: 0 ins; 1 del; 1 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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