Jim Kleckner wrote:
The attached patch for gnuplot speeds it up on Cygwin
by around 2.5x due to unbuffered reads for all file types.
I will submit it upstream as well.
See this link for the original discussion:
http://tinyurl.com/6c4sse
http://thread.gmane.org/gmane.comp.graphics.gnuplot.devel/2189/focus=2207
I withdraw that patch.
I tried nailing the places where setvbuf and setbuf were called on stdin
but that no longer works to eliminate the very high kernel/system time
overhead seen with pipes.
Instead, I'll figure out how to eliminate the pipes in my toolchain, unless
someone has a suggestion on where to look.
