Intel TBB malloc 使用 (windows)
CMake 查找 Intel TBB
find_package(
TBB
COMPONENTS tbb tbbmalloc tbbmalloc_proxy
REQUIRED)
if(TBB_FOUND)
message(STATUS "TBB version: ${TBB_VERSION}")
endif()
链接引入 TBB 库
if (MSVC)
target_link_libraries(${target_lib} PRIVATE TBB::tbb TBB::tbbmalloc
TBB::tbbmalloc_proxy)
endif()
cpp 代码中引入 TBB 符号，防止库链接被优化掉
#if defined(WITH_TBB_MALLOC) && defined(_MSC_VER) //&& defined(NDEBUG)
#include "oneapi/tbb/scalable_allocator.h"
#include "oneapi/tbb/tbbmalloc_proxy.h"
#pragma comment(lib, "tbbmalloc_proxy.lib")
#pragma comment(linker, "/include:__TBB_malloc_proxy")
#endif
查看内存分配函数替换是否出错
#if defined(WITH_TBB_MALLOC) && defined(_MSC_VER) //&& defined(NDEBUG)
{
// https://emfomenk.github.io/versions/latest/elements/oneTBB/source/memory_allocation/c_interface_to_scalable_allocator.html
const auto mode_ret = scalable_allocation_mode(TBBMALLOC_USE_HUGE_PAGES, 1);
if (mode_ret == TBBMALLOC_NO_EFFECT) {
spdlog::warn("huge pages not supported by OS");
}
char** func_replacement_log;
int func_replacement_status = TBB_malloc_replacement_log(&func_replacement_log);
if (func_replacement_status != 0) {
printf("tbbmalloc_proxy cannot replace memory allocation routines\n");
for (char** log_string = func_replacement_log; *log_string != 0; log_string++) {
spdlog::warn("{}", *log_string);
}
}
}
#endif
资料
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