pardo@june.cs.washington.edu (David Keppel) (05/21/88)
[ Advance apology if recent topic, I can't keep up with the volume here ] I'm trying to undestand the meaning of the "time" builtin command in csh(1). I've looked at Ultrix 2.0, 4.3 BSD and USENIX man pages, all to no avail. If anybody can please tell me, even to a first approximation, what the various numbers mean, I'd appreciate the information. Also, I vaguely remember that somebody in this group (perhaps 2 years ago) made up a man page just for the "time" builtin. If anybody has a copy of that lying around, it would be *real* useful. Please e-mail if practical; if sufficient interest I will summarize. ;-D on ( But your *vice* president *is* a crook ) Pardo pardo@june.cs.washington.edu ..!ucbvax!uw-beaver!uw-june!pardo
andrew@frip.gwd.tek.com (Andrew Klossner) (05/24/88)
"If anybody can please tell me, even to a first approximation,
what the various numbers mean, I'd appreciate the information."
Here's what it means under UTek, the Tektronix Berkeley-derived system.
I don't know whether we changed it from vanilla Berkeley.
0.0u 0.0s 0:00 100% 0+0k 0+0io 0pf+0w
^ number of swaps
^ major page faults
^ blocks written
^ blocks read
^ data segment resident set size (in kilobytes)
^ text segment resident set size (in kilobytes)
^ average percentage of CPU cycles used
^ elapsed time
^ system time
^ user time
-=- Andrew Klossner (decvax!tektronix!tekecs!andrew) [UUCP]
(andrew%tekecs.tek.com@relay.cs.net) [ARPA]maujd@warwick.UUCP (Geoff Rimmer) (06/02/88)
What I would suggest for the user who just wants simple information from the time command is to put the following line in .cshrc set time = (10 "Time taken is %E") This means that if a process takes more than 10 CPU seconds, you get the message Time taken is xx:yy -- This indicates that it took xx mins yy secs of "real" time to execute the command.) Other %? things are available - see csh.1 for more info! ------------------------------------------------------------ Geoff Rimmer, Computer Science, Warwick University, UK. maujd@uk.ac.warwick.opal ------------------------------------------------------------