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mdbx: добавление проверки посредством mincore() с кэшированием присутствия страниц в памяти (опция сборки MDBX_ENABLE_MINCORE).

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This commit is contained in:
Леонид Юрьев (Leonid Yuriev)
2022-12-05 10:41:05 +03:00
parent be3ff92772
commit a772a9d3e1
6 changed files with 171 additions and 32 deletions
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src/osal.c
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@@ -3336,7 +3336,7 @@ __cold int mdbx_get_sysraminfo(intptr_t *page_size, intptr_t *total_pages,
#ifndef xMDBX_ALLOY
unsigned sys_pagesize;
MDBX_MAYBE_UNUSED unsigned sys_allocation_granularity;
MDBX_MAYBE_UNUSED unsigned sys_pagesize_ln2, sys_allocation_granularity;
#endif /* xMDBX_ALLOY */
void osal_ctor(void) {
@@ -3362,6 +3362,7 @@ void osal_ctor(void) {
assert(sys_pagesize > 0 && (sys_pagesize & (sys_pagesize - 1)) == 0);
assert(sys_allocation_granularity >= sys_pagesize &&
sys_allocation_granularity % sys_pagesize == 0);
sys_pagesize_ln2 = log2n_powerof2(sys_pagesize);
#if defined(__linux__) || defined(__gnu_linux__)
posix_clockid = choice_monoclock();