🚀 go-pugleaf

caro@uni-paderborn.de (Carsten Rose) writes:
+---------------
| Here are 3 news article which discuss the performance test utility 'ttcp'.
| There are 2 different versions. The newer one has a variable socket buffer
| size. You can get it from sgi.sgi.com, look in ~ftp/sgi/src/ttcp/.
| There's a little different in the behavior of the '-s' option between the
| 2 versions of 'ttcp' - read the top of ttcp.c (this could save a lot your
| time :-) ).
+---------------

Well, yes, there was a very brief period of time in 1989 [exactly one month,
August 21 to September 21] during which SGI's version of "ttcp" reversed the
sense of "-s", probably [I'm not sure, I wasn't here yet] because it was felt
that it made the use of "ttcp" less error-prone. (If you forget the "-s" on
the sender side, the sender side will just hang there, waiting for input from
stdin.) And it saved typing three characters per side for the most common use.

However, it quickly [one month!] became clear that user-compatibility across
versions was more important than "convenience", so (quoting from the source):

	 * Modified Sept. 1989 at Silicon Graphics, Inc.
	 *      restored -s sense at request of tcs@brl

Before then and since then, the version on "sgi.sgi.com" has had the same
sense of "-s" as the original BRL version [also in the same directory, named
"ttcp.c-brl"], although it would seem that a surprising number of copies with
the inverted sense managed to propagate out into the world during that month!
[Well, maybe not so surprising. A considerable percentage of anonymous FTP
traffic on "sgi.sgi.com" is people picking up "ttcp".]

Feel free to grab a current version...


-Rob

-----
Rob Warnock, MS-9U/510		rpw3@sgi.com
Silicon Graphics, Inc.		(415)390-1673
2011 N. Shoreline Blvd.
Mountain View, CA  94043