[Fwd: 1.5.11-1: sftp performance problem]

Christopher Faylor cgf-no-personal-reply-please@cygwin.com
Fri Sep 10 17:33:00 GMT 2004

On Fri, Sep 10, 2004 at 11:55:05AM -0400, Bob Byrnes wrote:
>It's not obvious to me why socketpairs would be inherently faster
>than pipes.  Maybe my latest patch exacerbated a longstanding but
>not-fully-appreciated performance problem ... I'd certainly be
>interested in improving that.

I wonder if sshd is receiving a lot of signals.  The method for
dealing with signals when blocking on pipes is pretty fragile and
I could see it causing slowdowns.


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