On Thu, 22 May 2025 11:52:34 GMT, Per Minborg <pminb...@openjdk.org> wrote:
>> This PR builds on a concept John Rose told me about some time ago. Instead >> of combining memory operations of various sizes, a single large and skewed >> memory operation can be made to clean up the tail of remaining bytes. >> >> This has the effect of simplifying and shortening the code. The number of >> branches to evaluate is reduced. >> >> It should be noted that the performance of the fill operation affects the >> allocation of new segments (as they are zeroed out before being returned to >> the client code). > > Per Minborg has updated the pull request incrementally with one additional > commit since the last revision: > > Update benchmark to reflect new fill method Related discussion at the hardware level: https://github.com/openjdk/jdk/pull/25147#issuecomment-2902463076 I think I want to look into the VM, see if it can use overlapping reads and writes as well. ------------- PR Comment: https://git.openjdk.org/jdk/pull/25383#issuecomment-2902478627
