diff options
Diffstat (limited to 'src/system-alloc.h')
| -rw-r--r-- | src/system-alloc.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/system-alloc.h b/src/system-alloc.h index 7cb4bd4..511db7c 100644 --- a/src/system-alloc.h +++ b/src/system-alloc.h @@ -43,4 +43,15 @@ // when out of memory. extern void* TCMalloc_SystemAlloc(size_t bytes, size_t alignment = 0); +// This call is a hint to the operating system that the pages +// contained in the specified range of memory will not be used for a +// while, and can be released for use by other processes or the OS. +// Pages which are released in this way may be destroyed (zeroed) by +// the OS. The benefit of this function is that it frees memory for +// use by the system, the cost is that the pages are faulted back into +// the address space next time they are touched, which can impact +// performance. (Only pages fully covered by the memory region will +// be released, partial pages will not.) +extern void TCMalloc_SystemRelease(void* start, size_t length); + #endif /* TCMALLOC_SYSTEM_ALLOC_H__ */ |