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merge from dev

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This commit is contained in:
Daan Leijen 2024-08-21 11:33:11 -07:00
commit 3ec3aaf858
4 changed files with 45 additions and 7 deletions
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39
test/main-override-static.c
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@ -22,10 +22,12 @@ static void alloc_huge(void);
static void test_heap_walk(void);
static void test_heap_arena(void);
static void test_align(void);
// static void test_large_pages(void);
int main() {
mi_version();
mi_stats_reset();
// test_large_pages();
// detect double frees and heap corruption
// double_free1();
// double_free2();
@ -68,7 +70,7 @@ int main() {
//mi_stats_print(NULL);
// test_process_info();
return 0;
}
@ -250,6 +252,41 @@ static void test_heap_arena(void) {
}
}
// Experiment with huge OS pages
#if 0
#include <mimalloc/types.h>
#include <mimalloc/internal.h>
#include <unistd.h>
#include <sys/mman.h>
static void test_large_pages(void) {
mi_memid_t memid;
#if 0
size_t pages_reserved;
size_t page_size;
uint8_t* p = (uint8_t*)_mi_os_alloc_huge_os_pages(1, -1, 30000, &pages_reserved, &page_size, &memid);
const size_t req_size = pages_reserved * page_size;
#else
const size_t req_size = 64*MI_MiB;
uint8_t* p = (uint8_t*)_mi_os_alloc(req_size,&memid,NULL);
#endif
p[0] = 1;
//_mi_os_protect(p, _mi_os_page_size());
//_mi_os_unprotect(p, _mi_os_page_size());
//_mi_os_decommit(p, _mi_os_page_size(), NULL);
if (madvise(p, req_size, MADV_HUGEPAGE) == 0) {
printf("advised huge pages\n");
_mi_os_decommit(p, _mi_os_page_size(), NULL);
};
_mi_os_free(p, req_size, memid, NULL);
}
#endif
// ----------------------------
// bin size experiments
// ------------------------------