On Wed, 19 Feb 2025 17:12:55 GMT, Chris Plummer <cjplum...@openjdk.org> wrote:
> I'm not sure how the decision was made to go with LOW for libjdwp. >From what I heard from Magnus, those settings were done ages ago , before >recent compiler switches and even before the current build system was >introduced. We switched in the meantime from gcc 11.3 to gcc 13.2 in our buildenv . libjdwp.so / debuginfo is with opt SIZE - 264K / 1.7M current NORM/LOW - 304k / 1.9M LTO with the patch as given above - 300K LTO and also BUILDLIBJDWP opt set to HIGH - 328K So for gcc13.2 with lto enabled (300K) , the lib size gets slightly larger compared to gcc 11.3 with lto enabled (280K). > It seems LTO would be good to enable regardless of the optimization level. Unfortunately I think we do not have many benchmarks for the JDK native libs, or maybe I am not aware of them ? ------------- PR Comment: https://git.openjdk.org/jdk/pull/23563#issuecomment-2671513995
