project-base/server-skynet-source-3rd-jemalloc
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Add huge page configuration and pages_[no}huge().

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Add the --with-lg-hugepage configure option, but automatically configure
LG_HUGEPAGE even if it isn't specified.

Add the pages_[no]huge() functions, which toggle huge page state via
madvise(..., MADV_[NO]HUGEPAGE) calls.
This commit is contained in:
Jason Evans
2016-11-17 13:36:17 -08:00
parent eab3b180e5
commit c1baa0a9b7
9 changed files with 141 additions and 6 deletions
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14
include/jemalloc/internal/pages.h
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@@ -7,15 +7,23 @@
#endif
#define PAGE ((size_t)(1U << LG_PAGE))
#define PAGE_MASK ((size_t)(PAGE - 1))
/* Return the page base address for the page containing address a. */
#define PAGE_ADDR2BASE(a) \
((void *)((uintptr_t)(a) & ~PAGE_MASK))
/* Return the smallest pagesize multiple that is >= s. */
#define PAGE_CEILING(s) \
(((s) + PAGE_MASK) & ~PAGE_MASK)
/* Huge page size. LG_HUGEPAGE is determined by the configure script. */
#define HUGEPAGE ((size_t)(1U << LG_HUGEPAGE))
#define HUGEPAGE_MASK ((size_t)(HUGEPAGE - 1))
/* Return the huge page base address for the huge page containing address a. */
#define HUGEPAGE_ADDR2BASE(a) \
((void *)((uintptr_t)(a) & ~HUGEPAGE_MASK))
/* Return the smallest pagesize multiple that is >= s. */
#define HUGEPAGE_CEILING(s) \
(((s) + HUGEPAGE_MASK) & ~HUGEPAGE_MASK)
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
@@ -31,6 +39,8 @@ void *pages_trim(void *addr, size_t alloc_size, size_t leadsize,
bool pages_commit(void *addr, size_t size);
bool pages_decommit(void *addr, size_t size);
bool pages_purge(void *addr, size_t size);
bool pages_huge(void *addr, size_t size);
bool pages_nohuge(void *addr, size_t size);
void pages_boot(void);
#endif /* JEMALLOC_H_EXTERNS */