Program execution time

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I want to get the time taken to execute the program ,
Using Clock() I tried but its giving in second , which is 0 for small program .
So anyone knows how to get time in millisecond or micro second ?

Then I want to run the same program in multi core system and again wanna measure the time.....

I am using ubuntu...

Thanks .

Posted 18-Jan-11 1:20am

jidankhan

Updated 18-Jan-11 1:25am

#realJSOP

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Andrew Brock · Answer 1 · 2011-01-18T01:42:00

Solution 4

you can use the time command on Unix based systems or subsystems:

time echo "Hello world"

to time how long it takes to run echo "Hello world"
It has millisecond precision, and shows how much time was spent in the program, waiting on the system and the total execution time

Posted 18-Jan-11 1:42am

Andrew Brock

Dylan Morley · Answer 2 · 2011-01-18T01:31:00

Solution 3

Have a look here

http://stackoverflow.com/questions/588307/c-obtaining-milliseconds-time-on-linux-clock-doesnt-seem-to-work-properly[^]

Posted 18-Jan-11 1:31am

Dylan Morley

CPallini · Answer 3 · 2011-01-18T01:51:00

Solution 5

See clock_gettime[^] man page.
:)

Posted 18-Jan-11 1:51am

CPallini

Kasson · Answer 4 · 2011-01-18T01:24:00

Solution 2

Microsecond and Millisecond .NET Timer[^] article will give you an idea.

Posted 18-Jan-11 1:24am

Kasson

Comments

Dylan Morley 18-Jan-11 7:32am

Doesn't want .Net though...

CPallini 18-Jan-11 7:50am

Did you see the C, Linux tags?