The option makes jemalloc use prctl with PR_SET_VMA to tag memory mappings with "jemalloc_pg" or "jemalloc_pg_overcommit". This allows to easily identify jemalloc's mappings in /proc/<pid>/maps. PR_SET_VMA is only available in Linux 5.17 and above.
The option makes jemalloc use prctl with PR_SET_VMA to tag memory mappings with "jemalloc_pg" or "jemalloc_pg_overcommit". This allows to easily identify jemalloc's mappings in /proc/<pid>/maps. PR_SET_VMA is only available in Linux 5.17 and above.