MI_DELAYED_FREEING);代码链接：https://github.com/microsoft/mimalloc/blob/master/src/alloc.c#L367do...
void operator delete (void* p, const std::nothrow_t&) noexcept { mi_free(p); } void operator delete[](void* p, const std::nothrow_t&) noexcept { mi_free(p); }mi_decl_new(n) void* operator new(std::size_t n) noexcept(false) { return mi_new(n); }...
mimalloc用原子操作而不是锁来做关键数据的保护，原子操作的开销比锁要小很多，所以性能会好很多。在X86...
For best performance in C++ programs, it is also recommended to override the globalnewanddeleteoperators. For convenience, mimalloc providesmimalloc-new-delete.hwhich does this for you -- just include it in a single(!) source file in your project. In C++, mimalloc also provides themi_stl_al...
For convenience, mimalloc provides mimalloc-new-delete.h which does this for you -- just include it in a single(!) source file in your project. In C++, mimalloc also provides the mi_stl_allocator struct which implements the std::allocator interface. You can pass environment variables to ...
mi_decl_new(n)void*operatornew(std::size_tn)noexcept(false){returnmi_new(n);} mi_decl_new(n)void*operatornew[](std::size_tn)noexcept(false){returnmi_new(n);} mi_decl_new_nothrow(n)void*operatornew(std::size_tn,conststd::nothrow_t&tag)noexcept{(void)(tag);returnmi_new_nothrow...
Or you link to mimalloc with MI_OVERRIDE=1 without considering mimalloc-new-delete.h at all You can test with MIMALLOC_SHOW_STATS=1 ./a see if there are mimalloc output in the terminal to see if mimalloc overriden takes effect For instance a.h #include <mimalloc.h> a.cpp #include <...
#include"mimalloc/mimalloc.h"...structsome_class{//...your data..//...your data..void*operatornew(size_tsize){returnmi_malloc(size);}voidoperatordelete(void*ptr){mi_free(ptr);}} So any classes derived from this class also using it automatically. Get fun!
if(!mi_atomic_cas_weak_acq_rel(field, &map, newmap)) {//TODO: use strong cas here? //no success, another thread claimed concurrently.. keep going (with updated `map`) continue; } else{ //success, we claimed the bits! *bitmap_idx =mi_bitmap_index_create(idx, bitidx); ...
We measure three versions of mimalloc: the main version mi (tag:v1.7.0), the new v2.0 beta version as xmi (tag:v2.0.0), and the main version in secure mode as smi (tag:v1.7.0). The other allocators are Google's tcmalloc (tc, tag:gperftools-2.8.1) used in Chrome, Facebook'...