Charles-François Natali added the comment: > It turns out the times are not important; the hangup is the default size of > the socket buffers on OS X and possibly BSD in general. In my case, the send > and receive buffers are 8192, which explains why the chunks written are so > small.
Hmmm... Basically, with a much smaller socket buffer, we get much more context switches, which increases drastically the test runtime. But I must admit I'm still really surprised by the time it takes on OS-X: with a SOCK_MAX_SIZE of 16MB and a socket buffer size of 8kb, that's 2000 calls to send with context switches between the sender and receiver - and thie overhead should be much less on a two core machine. I'll try to increase the socket buffer size and see what the buildbots do: most of them will probably cap it at around 100k, but that'll hopefully be enough. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue23285> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
