On Mon, 23 Oct 2023 01:39:16 GMT, Chris Plummer <cjplum...@openjdk.org> wrote:
>> Analysts and supporters often use /proc/xx/maps to make sense of the memory >> footprint of a process. >> >> Interpreting the memory map correctly can help when used as a complement to >> other tools (e.g. NMT). There even exist tools out there that attempt to >> annotate the process memory map with JVM information. >> >> That, however, can be more accurately done from within the JVM, at least for >> mappings originating from hotspot. After all, we can correlate the mapping >> information in NMT with the VMA map. >> >> Example output: >> >> [example.system.map.txt](https://github.com/openjdk/jdk/files/13062903/example.system.map.txt) >> >> This patch adds the VM annotations for VMAs that are *mmaped*. I also have >> an experimental patch that works with malloc'ed memory, but it is not ready >> yet for consumption and I leave that part of for now. > > The hs_err file includes a dump of the maps file. It seems these annotations > would be useful there also. @plummercj on second thought, I'd rather leave the hs-err part for a follow-up RFE. ------------- PR Comment: https://git.openjdk.org/jdk/pull/16301#issuecomment-1774499487
