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