On Wed, 9 Apr 2025 12:33:26 GMT, Magnus Ihse Bursie <i...@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 . > > I'd like to move to a world where we basically have just two optimization > levels, "size" and "speed", and libraries do not in general have the level > specified, so it falls back on a default, which could then be set by > configure. For individual libraries we might need to override the default > value, if we know that certain compilers make a mess of certain optimization > levels, or if some libraries are especially performance sensitive. (Making > hotspot `-Os` would certainly never make any sense, for example.) @magicus should we close this one and follow up with another JBS issue, making opt-size the default for JDK libs ? I think you proposed something like this ? ------------- PR Comment: https://git.openjdk.org/jdk/pull/23563#issuecomment-2863156276
