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| author | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2016-11-29 00:22:50 +0000 |
|---|---|---|
| committer | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2016-11-29 00:22:50 +0000 |
| commit | 9eaa3ef462b338fa2426930e2d3072b43291abcf (patch) | |
| tree | 267a7e011a8126b7f32027505beb5cb4bb92c136 /lib/sanitizer_common/sanitizer_flags.inc | |
| parent | ca0aa08d646e22e1639217be0461cef96dcb83a3 (diff) | |
| download | compiler-rt-9eaa3ef462b338fa2426930e2d3072b43291abcf.tar.gz | |
Return memory to OS right after free (not in the async thread).
Summary:
In order to avoid starting a separate thread to return unused memory to
the system (the thread interferes with process startup on Android,
Zygota waits for all threads to exit before fork, but this thread never
exits), try to return it right after free.
Reviewers: eugenis
Subscribers: cryptoad, filcab, danalbert, kubabrecka, llvm-commits
Patch by Aleksey Shlyapnikov.
Differential Revision: https://reviews.llvm.org/D27003
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@288091 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/sanitizer_common/sanitizer_flags.inc')
| -rw-r--r-- | lib/sanitizer_common/sanitizer_flags.inc | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/sanitizer_common/sanitizer_flags.inc b/lib/sanitizer_common/sanitizer_flags.inc index f94d151f3..43900f87b 100644 --- a/lib/sanitizer_common/sanitizer_flags.inc +++ b/lib/sanitizer_common/sanitizer_flags.inc @@ -119,9 +119,11 @@ COMMON_FLAG(uptr, soft_rss_limit_mb, 0, " This limit does not affect memory allocations other than" " malloc/new.") COMMON_FLAG(bool, heap_profile, false, "Experimental heap profiler, asan-only") -COMMON_FLAG(bool, allocator_release_to_os, false, - "Experimental. If true, try to periodically release unused" - " memory to the OS.\n") +COMMON_FLAG(s32, allocator_release_to_os_interval_ms, kReleaseToOSIntervalNever, + "Experimental. Only affects a 64-bit allocator. If set, tries to " + "release unused memory to the OS, but not more often than this " + "interval (in milliseconds). Negative values mean do not attempt " + "to release memory to the OS.\n") COMMON_FLAG(bool, can_use_proc_maps_statm, true, "If false, do not attempt to read /proc/maps/statm." " Mostly useful for testing sanitizers.") |