Jeff wrote: > Thanks. I am doing the memory allocation in a single thread. > The compute uses all the threads I can get, and the compute isn't > scaling very well with cygwin. > It does work well on my 16 core 32 thread processor, so for most people > the posix threading is fine.
> jeff For the multi-threaded program that I wrote, with up to 64 threads, I compile each file with: x86_64-w64-mingw32-c++ -O3 -c file.cpp and link with: x86_64-w64-mingw32-c++ -o program *.o -static-libgcc -static-libstdc++ -Wl,-Bstatic -lstdc++ -lpthread -Wl,-Bdynamic And I get could results. 100% CPU use; I even need to lower the priority of the program to keep a snapy Windows UI. You may try the same to see if it improves the performance of your program. Regards, - André Bleau -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
