[comp.protocols.tcp-ip] source code of ttcp.c

tml@mimir.dmt.oz (Thomas Lam) (08/31/89)

Could somebody tell me how to obtain a copy of ttcp.c source code?
Thank you!

Reach me by: tml@mimir.dmt.oz ( email )

vjs@rhyolite.wpd.sgi.com (Vernon Schryver) (09/01/89)

It has been observed that page misalignment substantially affects the TCP &
UDP performance of some systems.  Given common bcopy/copy{in,out}/usercopy
implementations, one would expect dramatic effects from byte-misaligment.
So there is now a version of ttcp which allows the base of the buffers to
be known and controlled in sgi/src/ttcp.shar via public ftp to sgi.com.
The shar file also contains a man-page (hacked at SGI, so all errors are
ours).  It has been submitted to comp.sources.unix.

Anyone care to say publically how many vendors are near or past 1MByte/sec?


Vernon Schryver
Silicon Graphics
vjs@sgi.com