Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!bellcore!madeleine!tr
From: tr@madeleine (tom reingold)
Newsgroups: comp.sys.pyramid
Subject: telnetd eating up the cpu
Message-ID: <17263@bellcore.bellcore.com>
Date: 21 Jul 89 15:53:34 GMT
Sender: news@bellcore.bellcore.com
Reply-To: tr@bellcore.com (tom reingold)
Organization: Bellcore, Piscataway, Noo Joizy
Lines: 21

When someone telnets into our Pyramid and sends a lot of data to
stdout, the cpu usage goes up to 100% for the telnetd running on his
line.  This does not happen if he logs in using rlogin.  Nor does it
happen using rlogin or telnet into a Sun, so this definitely looks like
a Pyramid bug.

My test is as simple as:

	while true
	do
		cat /etc/passwd
	done

This will peg the CPU meter and slow performance for ALL users.

Any ideas or news on this?

Tom Reingold                   |INTERNET:       tr@ctt.bellcore.com
Bell Communications Research   |UUCP:           bellcore!ctt!tr
444 Hoes La room 1H217         |PHONE:          (201) 699-7058 [work],
Piscataway, NJ 08854           |                (201) 287-2345 [home]