troubleshooting Question

clock()

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lost_bits1110 asked on
C++
10 Comments1 Solution544 ViewsLast Modified:
Hi there,

So I wanted to know how long my code takes to run on the order of seconds, so I know about the gprof profiling tool and have used this before.. but for now I just want to use the clock() functions
(And from my experience gprof reports faster times anyways)

So basically I am rendering somethign on screen - and when I just look at it running and count in my head the seconds it takes to run I can count about 7 seconds..
But when I time it using


            clock1 = clock();
            RunOneCardiacCycle( ourMeshExpert, SAMVoxelGrid, timeSampleSet);
            clock2 = clock();
            printf("Time = %.5f\t",(double)(clock2 - clock1) / CLOCKS_PER_SEC);

it reports an average of about 0.6-0.7 seconds!!!  
This makes no sense to me..
I know clock() is not very accurate but I thought it woudl be at least accurate to the order of seconds..?
 Is it because i have many windows open? This can't make such a huge difference!!  Do the above lines of code look right? It shoudl output time in seconds right?
Thanks
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