Ad:

C Discussion Thread
Unsolved
Views: 5513

Jun 8th, 2007

to find the execution time of a code

Expand Post »

i have to find two time stamps one at the begining of main and at the end of main and take the difference to find the time elapsed to execute the code in between.Can anybody suggest the programs or proper API s in Linux.

Similar Threads

how to find execution time milliseconds in C
Very Very Urgent...Need Code for Calculating Execution Time For Jsp Page in JSP
Maximum execution time exceeded. in PHP
Execution time(plz Help) in Shell Scripting

shanthu123

Reputation Points: 10

Solved Threads: 0

Newbie Poster

Offline

1 posts
since Jun 2007

Permalink

Jun 8th, 2007

Re: to find the execution time of a code

>Can anybody suggest the programs or proper API s in Linux.
A profiler would be best. Check your system for the existence of gprof. You can also use a number of methods inside of your code to get execution time and timestamps, something like gettimeofday or rdtsc.

Last edited by Narue; Jun 8th, 2007 at 9:49 am.

Narue

Administrator

Reputation Points: 6442

Solved Threads: 1393

Bad Cop

Offline

11,807 posts
since Sep 2004

Permalink

Jun 12th, 2007

Re: to find the execution time of a code

man time
time does what u want.

youngstorm

Reputation Points: 10

Solved Threads: 1

Light Poster

Offline

25 posts
since Jun 2007

Permalink

Jun 13th, 2007

Re: to find the execution time of a code

http://www.daniweb.com/forums/thread77308-2.html

iamthwee

Featured Poster

Reputation Points: 1536

Solved Threads: 431

Posting Expert

Offline

5,865 posts
since Aug 2005

Permalink

Jun 19th, 2007

Re: to find the execution time of a code

that thread had a post that the execution time varies with compiler.... is it true...... what exactly does change from compiler to compiler........

Last edited by aasi007onfire; Jun 19th, 2007 at 3:50 pm.

aasi007onfire

Reputation Points: 10

Solved Threads: 1

Newbie Poster

Offline

22 posts
since Jun 2007

Permalink

Jun 20th, 2007

Re: to find the execution time of a code

There shouldn't be a "major" difference due to compilers, it's more to do with the platform (OS+H/W) then compiler.
Using same compiler you can use different optimization levels, this should make a visible difference in performance.

thekashyap

Reputation Points: 254

Solved Threads: 74

Practically a Posting Shark

Offline

804 posts
since Feb 2007

This thread is more than three months old

No one has posted to this discussion for at least three months. Please let old threads die and do not reply to them unless you feel you have something new and valuable to contribute that absolutely must be added to make the discussion complete. Otherwise, please start a new thread in this forum instead.

Previous Thread in C Forum Timeline: When I use a debugger if a have a function i go to assembly-it is not a bug

Next Thread in C Forum Timeline: Timing programs in C

DaniWeb Message

Cancel Changes

User Name
Password