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etime(3f) [bsd man page]

ETIME(3F)																 ETIME(3F)

etime, dtime - return elapsed execution time SYNOPSIS
function etime (tarray) real tarray(2) function dtime (tarray) real tarray(2) DESCRIPTION
These two routines return elapsed runtime in seconds for the calling process. Dtime returns the elapsed time since the last call to dtime, or the start of execution on the first call. The argument array returns user time in the first element and system time in the second element. The function value is the sum of user and system time. The resolution of all timing is 1/HZ sec. where HZ is currently 60. FILES
/usr/lib/libU77.a SEE ALSO
times(2) 4.2 Berkeley Distribution May 15, 1985 ETIME(3F)

Check Out this Related Man Page

time(1) 						      General Commands Manual							   time(1)

       time - time a command

       time command
       /bin/time command

       The  command  lets  the specified command execute and then outputs the amount of elapsed real time, the time spent in the operating system,
       and the time spent in execution of the command.	Times are reported in seconds and are written to standard error.

       If you are using any shell except the C shell, you can give the command as shown on the first line of the Syntax section.  If you are using
       the  C shell, you must use the command's full pathname as shown on the second line of the Syntax section.  If you do not use the full path-
       name, will execute its own built-in command that supplies additional information and uses a different output format.

       The command can be used to cause a command to be timed no matter how much CPU time it takes.  For example:
       % /bin/time cp /etc/rc /usr/bill/rc
	       0.1 real 	0.0 user	 0.0 sys
       % /bin/time nroff sample1 > sample1.nroff
	       3.6 real 	2.4 user	 1.2 sys
       This example indicates that the command used negligible amounts of user and system time and had an elapsed time of 1/10 second (0.1).   The
       command used 2.4 seconds of user time and 1.2 seconds of system time, and required 3.6 seconds of elapsed time.

       Times are measured to an accuracy of 1/10 second.  Thus, the sum of the user and system times can be larger than the elapsed time.

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