On Thu, 2 Jan 2020 22:16:02 +0000 Ken Brown wrote: > I think this narrows it down to one of the following commits:
I looked into this probelm and found the issue occurs after the following commit. > commit 915fcd0ae8d83546ce135131cd25bf6795d97966 > Author: Takashi Yano <takashi.y...@nifty.ne.jp> > Date: Thu Sep 5 13:22:54 2019 +0900 > > Cygwin: pty: Fix select() with pseudo console support. I investigated this deeper, and found: 1) xterm in ssh -Y session calls select() about 1000 times at startup. 2) pi->thread->detach() in pty_slave_cleanup() takes about 20usec in usual, however, it takes more than 10msec in ssh -Y session. As a result, start up of xterm takes more than 10 sec. I have no idea so far why cygthread::detach() becomes so slow in ssh -Y session. :-( -- Takashi Yano <takashi.y...@nifty.ne.jp> -- 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
