time.n

tcl是工具命令语言

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'\" RCS: @(#) $Id: time.n,v 1.3 2000/09/07 14:27:52 poenitz Exp $
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.so man.macros
.TH time n "" Tcl "Tcl Built-In Commands"
.BS
'\" Note:  do not modify the .SH NAME line immediately below!
.SH NAME
time \- Time the execution of a script
.SH SYNOPSIS
\fBtime \fIscript\fR ?\fIcount\fR?
.BE

.SH DESCRIPTION
.PP
This command will call the Tcl interpreter \fIcount\fR
times to evaluate \fIscript\fR (or once if \fIcount\fR isn't
specified).  It will then return a string of the form
.CS
\fB503 microseconds per iteration\fR
.CE
which indicates the average amount of time required per iteration,
in microseconds.
Time is measured in elapsed time, not CPU time.

.SH "SEE ALSO"
clock(n)

.SH KEYWORDS
script, time