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daan 2019-07-22 10:16:59 -07:00
commit 80e09ef44e
14 changed files with 46 additions and 32 deletions
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src/os.c
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@ -12,7 +12,7 @@ terms of the MIT license. A copy of the license can be found in the file
#include "mimalloc-internal.h"
#include "mimalloc-atomic.h"
#include <string.h> // memset
#include <string.h> // strerror
#include <errno.h>
#if defined(_WIN32)
@ -211,7 +211,7 @@ static void* mi_win_virtual_alloc(void* addr, size_t size, size_t try_alignment,
if (use_large_os_page(size, try_alignment)) {
uintptr_t try_ok = mi_atomic_read(&large_page_try_ok);
if (try_ok > 0) {
// if a large page page allocation fails, it seems the calls to VirtualAlloc get very expensive.
// if a large page allocation fails, it seems the calls to VirtualAlloc get very expensive.
// therefore, once a large page allocation failed, we don't try again for `large_page_try_ok` times.
mi_atomic_compare_exchange(&large_page_try_ok, try_ok - 1, try_ok);
}