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| author | John Högberg <[email protected]> | 2018-08-29 16:21:17 +0200 |
|---|---|---|
| committer | John Högberg <[email protected]> | 2018-12-07 12:28:51 +0100 |
| commit | 1d549eddbeeccf7d108310466de5f63af04b004c (patch) | |
| tree | 6c3623605f7f1b80ec732caac2d4adb1b6bb08d3 /erts/emulator/sys/win32 | |
| parent | 4b9836a2dada60005e01067af04a0e0d9361fcee (diff) | |
| download | otp-1d549eddbeeccf7d108310466de5f63af04b004c.tar.gz otp-1d549eddbeeccf7d108310466de5f63af04b004c.tar.bz2 otp-1d549eddbeeccf7d108310466de5f63af04b004c.zip | |
Mark free blocks in pooled carriers as unused (MADV_FREE)
This lets the OS reclaim the physical memory associated with these
blocks which reduces the impact of long-lived awkward allocations.
A small allocated block will still keep a huge carrier alive, but
the unused part of the carrier will now be available to the OS.
Co-authored-by: Dmytro Lytovchenko <[email protected]>
Diffstat (limited to 'erts/emulator/sys/win32')
| -rw-r--r-- | erts/emulator/sys/win32/sys.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/erts/emulator/sys/win32/sys.c b/erts/emulator/sys/win32/sys.c index a1c630d68a..b95aadc9b2 100644 --- a/erts/emulator/sys/win32/sys.c +++ b/erts/emulator/sys/win32/sys.c @@ -186,7 +186,9 @@ void sys_primitive_init(HMODULE beam) UWord erts_sys_get_page_size(void) { - return (UWord) 4*1024; /* Guess 4 KB */ + SYSTEM_INFO info; + GetSystemInfo(&info); + return (UWord)info.dwPageSize; } Uint |