Hello Stuart Marks, would you be able to take a look at this patch, improving performance of enum-only immutable collections, as you are the primary engineer in this area?
On Mon, Feb 20, 2023 at 9:40 PM Tingjun Yuan <d...@openjdk.org> wrote: > > > Currently, the two subclasses of `java.util.EnumSet` optimize bulk > > operations when the argument is also a `EnumSet`, but there is no such > > optimization for wrapper sets (returned by `Collections.unmodifiableSet`, > > `Collections.synchronizedSet`, etc.) and immutable sets (returned by > > `Set.of` methods) of `Enum`s. > > > > This PR introduces optimization classes for these situations. No public > > APIs are changed. > > Tingjun Yuan has updated the pull request incrementally with one additional > commit since the last revision: > > Set.copyOf: need defensive copy > > ------------- > > Changes: > - all: https://git.openjdk.org/jdk/pull/12498/files > - new: https://git.openjdk.org/jdk/pull/12498/files/b9699bfe..0e0b2bf1 > > Webrevs: > - full: https://webrevs.openjdk.org/?repo=jdk&pr=12498&range=04 > - incr: https://webrevs.openjdk.org/?repo=jdk&pr=12498&range=03-04 > > Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod > Patch: https://git.openjdk.org/jdk/pull/12498.diff > Fetch: git fetch https://git.openjdk.org/jdk pull/12498/head:pull/12498 > > PR: https://git.openjdk.org/jdk/pull/12498
