Hello, I recently noticed that Cygwin multithreading is very inefficient. I was repacking few git repositories and with Cygwin's git, it spawns threads but they are so badly synchronized that there is no speed gain over one thread and possible loose because of the overhead. On my machine I got 7-10% CPU usage while with git build with mingw easily uses 100%.
You can find the code in question here https://github.com/git/git/blob/master/builtin/pack-objects.c#L1967-L2094 Do you have any suggestions? Is there any chance to get MT workloads improved in Cygwin? In present days it is really big problem in my opinion. Best Regard -- 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
