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decommit unused prefix of large aligned blocks

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daan 2022-11-07 16:41:40 -08:00
parent 27fc2cf17e
commit 2479d168ad
5 changed files with 63 additions and 28 deletions
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5
include/mimalloc-internal.h
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@ -94,6 +94,7 @@ void _mi_mem_free(void* p, size_t size, size_t alignment, size_t align_off
bool _mi_mem_reset(void* p, size_t size, mi_os_tld_t* tld);
bool _mi_mem_unreset(void* p, size_t size, bool* is_zero, mi_os_tld_t* tld);
bool _mi_mem_commit(void* p, size_t size, bool* is_zero, mi_os_tld_t* tld);
bool _mi_mem_decommit(void* p, size_t size, mi_os_tld_t* tld);
bool _mi_mem_protect(void* addr, size_t size);
bool _mi_mem_unprotect(void* addr, size_t size);
@ -485,6 +486,10 @@ static inline size_t mi_page_block_size(const mi_page_t* page) {
}
}
static inline bool mi_page_is_huge(const mi_page_t* page) {
return (_mi_page_segment(page)->page_kind == MI_PAGE_HUGE);
}
// Get the usable block size of a page without fixed padding.
// This may still include internal padding due to alignment and rounding up size classes.
static inline size_t mi_page_usable_block_size(const mi_page_t* page) {