| commit | 3a9242df244215203feeb50327a29ce4c61aac9e | |
| author | Bin Liu <binliu@fb.com> | |
| Tue, 17 Sep 2019 04:17:14 +0000 (16 21:17 -0700) | ||
| committer | Hhvm Bot <hhvm-bot@users.noreply.github.com> | |
| Tue, 17 Sep 2019 04:20:05 +0000 (16 21:20 -0700) | ||
| tree | dae3cc037f0b4a1c42cb3b5cbedae469931a98c2 | treesnapshot (tar.gz zip) |
| parent | 0f2f7cbd12fa81ce52d985c65c4321b4729ebb13 | commitdiff |
use madvise() directly for hottext in new kernels
Summary: Newer kernels support madvise() directly on already mapped regions. Introduce an option to do that. The benefit is that perf tools can work better with the addresses in hottext this way.
Reviewed By: liu-song-6, alexeyt
Differential Revision: D17403820
fbshipit-source-id: 8f1eb535665375b5ae32b36d65edf562e055e942
Summary: Newer kernels support madvise() directly on already mapped regions. Introduce an option to do that. The benefit is that perf tools can work better with the addresses in hottext this way.
Reviewed By: liu-song-6, alexeyt
Differential Revision: D17403820
fbshipit-source-id: 8f1eb535665375b5ae32b36d65edf562e055e942
| hphp/runtime/base/program-functions.cpp | diffblobblamehistory | |
| hphp/runtime/base/runtime-option.h | diffblobblamehistory |