llvm-project/llvm/tools/llvm-profdata
Rafael Espindola 6e182fbab4 Use sched_getaffinity instead of std:🧵:hardware_concurrency.
The issue with std:🧵:hardware_concurrency is that it forwards
to libc and some implementations (like glibc) don't take thread
affinity into consideration.

With this change a llvm program that can execute in only 2 cores will
use 2 threads, even if the machine has 32 cores.

This makes benchmarking a lot easier, but should also help if someone
doesn't want to use all cores for compilation for example.

llvm-svn: 314809
2017-10-03 16:25:15 +00:00
..
CMakeLists.txt [CMake] llvm-profdata depends on intrinsics_gen 2016-11-18 23:04:15 +00:00
LLVMBuild.txt
llvm-profdata.cpp Use sched_getaffinity instead of std:🧵:hardware_concurrency. 2017-10-03 16:25:15 +00:00