On Wed, 16 Jun 2021 12:52:46 GMT, Coleen Phillimore <cole...@openjdk.org> wrote:
> This change removes the mark_for_evol_deoptimization method and removes the > flag that all dependencies are recorded. Before the change to walk the > entire nmethod looking for "old" (redefined) methods with metadata_do(), we > used to find methods in the code cache to deoptimize based on evol_method > dependencies. If the dependencies weren't yet recorded, we had to deoptimize > all of the methods. A long time ago, we had a customer who was unhappy with > the pause for this when they had late attach. Now we don't have this problem. > The evol_method dependencies are still used by the compiler to check for old > methods during compilation. I didn't change this but it might be something > someone who knows the compiler better can do differently and remove these > dependencies too. > Tested with tier1-6. This pull request has now been integrated. Changeset: 33c23a1c Author: Coleen Phillimore <cole...@openjdk.org> URL: https://git.openjdk.java.net/jdk/commit/33c23a1cf2aa81551eee4a2acf271edf573558aa Stats: 78 lines in 7 files changed: 0 ins; 73 del; 5 mod 8264941: Remove CodeCache::mark_for_evol_deoptimization() method Reviewed-by: kvn, vlivanov, sspitsyn ------------- PR: https://git.openjdk.java.net/jdk/pull/4509
