On 1/12/2018 2:19 AM, Lee wrote:
Why is the cygwin gcc calloc so much slower than the i686-w64-mingw32-gcc calloc?
Since your test repeatedly allocates and frees one chunk of size 100 Mb (ouch!) my guess is that the slow behavior is rooted in something to do with mmap. Perhaps Corinna or another internals expert can explain why large mmap requests would be a problem for cygwin -- and perhaps it is something that could be improved if the effort is warranted ... Eliot Moss -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
