Tatsuro MATSUOKA <tmaccha...@yahoo.co.jp> writes: > Hello > > I have involved in the octave project. > Octave uses gnuplot as a graphic backend and data are sent and recieved via > pipe. > > A report of slowness issue of the plot on octave on windows reported.
So one of your program is native and the other cygwin. It's like a similar issue I met when using native Emacs+Gnus and cygwin programs (openssl client) to read imap mails, it is very slow. I guess it was a pipe size issue, for old DOS compatibility, the pipe buffer is 64K, and if I check the i/o rate of openssl with Procexp, I can see something like 64K. This is a very wild guess though. First I see sth. in Procexp to be about 64K, then I googled with "windows pipe 64k". Maybe you can try tweak the pipe buffer size. -- 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