| commit | 1aa8f3783fae488e22cb481320abc76692c9efe2 | |
| author | Edwin Smith <smith@fb.com> | |
| Mon, 21 Aug 2017 15:27:48 +0000 (21 08:27 -0700) | ||
| committer | Hhvm Bot <hhvm-bot@users.noreply.github.com> | |
| Mon, 21 Aug 2017 15:37:17 +0000 (21 08:37 -0700) | ||
| tree | 3932ecf425901ab915eb89d8bfc52164a5aa163b | treesnapshot (tar.gz zip) |
| parent | 9b9d8849df96cb7bb20ac14599545b65bf6619db | commitdiff |
Always allocate untyped mallocs directly from big heap
Summary:
To avoiding needing a whole-heap scan at the start of each
collection cycle, we need a way to quickly identify "unknown"
typed malloc blocks, so they can be added to the root set.
These are expected to be rare, so allocate them directly from
the big heap.
Reviewed By: ricklavoie
Differential Revision: D5668185
fbshipit-source-id: b2fa7e5e07b1965aaf18711b1a89c096ed763821
Summary:
To avoiding needing a whole-heap scan at the start of each
collection cycle, we need a way to quickly identify "unknown"
typed malloc blocks, so they can be added to the root set.
These are expected to be rare, so allocate them directly from
the big heap.
Reviewed By: ricklavoie
Differential Revision: D5668185
fbshipit-source-id: b2fa7e5e07b1965aaf18711b1a89c096ed763821
| hphp/runtime/base/heap-collect.cpp | diffblobblamehistory | |
| hphp/runtime/base/memory-manager.cpp | diffblobblamehistory |