On Fri, 13 Feb 2026 18:24:57 GMT, Coleen Phillimore <[email protected]> wrote:
>> This change removes MethodData code copied into SA that's out of date for >> the valhalla repo. >> >> Tested with tier1-3. > > Coleen Phillimore has updated the pull request incrementally with one > additional commit since the last revision: > > Remove the doc. I mean `printmdo` might be useful for understand VM behavior and method usage in HotSpot POV. For example, the user attaches CLHSDB and run `printmdo` to get MDO as baseline, then run again 10 minutes later. The user can know how the method was run and HotSpot collect statistics during 10 mins. If I understand correctly, `PrintMethodData` and `CompileCommand=print` would show statistics when VM is exitting ( @ `before_exit()` ). We cannot use them in this use case. Anyway, I almost agree to remove `printmdo` because it is not useful for troubleshooting IMHO. If the user want to get MDO for learning, they can attach native debugger... ------------- PR Comment: https://git.openjdk.org/jdk/pull/29693#issuecomment-3917734072
