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Senin, 17 September 2012

Unix Tip: PROCESS EXECUTION TIME

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UNIX GURU UNIVERSE
UNIX HOT TIP

Unix Tip 3509 - September 17, 2012

http://www.ugu.com/sui/ugu/show?tip.today

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PROCESS EXECUTION TIME

To find the execution
time of a process,

The 'time' command
will tell you the answer.
'man time'.

Syntax:
time <executable/command (with arguments)>

For Ex:
$ /usr/bin/time find / -name csh.1 -print

real 1:15.5

(time elapsed between
invocation and
termination)

user 0.3

(time spent in user
process code)

sys 3.3

(time spent in system
code)

The executable/command
is run by the 'time'
as a child process and
then elapsed, user,
system time are reported.
There is a csh version
of 'time'. It will
report the time in
different format.


In Solaris 'ptime' gives
more accurate results.

/usr/proc/bin/ptime command/executable [ arg ... ]



This tip generously supported by: M.Nithyanandham@blr.spcnl.co.in


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