On Tue, 11 Feb 2025 15:56:39 GMT, Matthias Baesken <mbaes...@openjdk.org> wrote:
> The libjdwp is currently built with LOW optimization level, it could be built > with SIZE optimization to lower the lib size by ~ 10 % on UNIX. > On Windows LOW and SIZE currently translate to the same O1 optimization flag > so no difference there. > > On Linux x86_64 for example the lib shrinks from > 300K to 268K and the debuginfo file shrinks from 1.9M to 1.7M . > > On Linux ppc64le for example the lib shrinks from > 428K to 368K and the debuginfo file shrinks from 2.0M to 1.7M . The results for LOW/SIZE/HIGHEST for LIBJDWP are here (at least for our build envs at SAP) https://wiki.openjdk.org/display/Build/Native+library+optimization+level+research >From what I see, if we really care about speed in this lib we could also use >HIGHEST optimization; there is not much code bloat with this. If we care about size of the lib/image size, SIZE brings us some improvements especially on Linux. I can also try HIGHEST + lto (this might bring us speed + smaller lib size at least with gcc). ------------- PR Comment: https://git.openjdk.org/jdk/pull/23563#issuecomment-2761344464
