jemalloc/include
Bin Liu be2de8ccd8 Introduce pinned extents to contain unpurgeable pages
Some pages (e.g., hugetlb pages) cannot be purged, and should be
prioritized for reuse.  A custom extent_alloc hook signals this by
OR'ing EXTENT_ALLOC_FLAG_PINNED into the low bits of the returned
pointer; jemalloc strips the flag bits and caches pinned extents in
a dedicated ecache_pinned, separate from the dirty/muzzy decay
pipeline.

Pinned extents do not coalesce eagerly, except for ones larger than
SC_LARGE_MINCLASS.  A prefer-small policy reuses the smallest fitting
pinned extent, to avoid unnecessary split/fragmentation.
2026-05-05 10:44:28 -07:00
..
jemalloc Introduce pinned extents to contain unpurgeable pages 2026-05-05 10:44:28 -07:00
msvc_compat Reformat the codebase with the clang-format 18. 2026-03-10 18:14:33 -07:00