CODEWITHSUNDEEP
cperformanceunixhp-ux
Goldi
Goldi

Reputation: 41

How to measure the exact performance (time taken to execute) of a binary which is taking input from user

I have a C program written in such a way that it takes a file name as input to read. Now the problem is i am using time/timex command on HPUX to know the exact performance or time elapsed during the complete execution of the program.

The problem is, i am not able to get the exact performance by these time/timex command due to the time taken during the input insertion for that program. time/timex command is also considering the time taken by the user to provide the input.

Can anyone please help me as to how should i measure the actual performance in such case where user is giving input which is required to run the program ?

Upvotes: 1

Views: 894

Answers (1)

casablanca
casablanca

Reputation: 70691

time reports both the real time and CPU time. The real time includes time spent waiting for input, but the CPU time (user + sys) should give you just the time actually spent by your program performing computations.

Upvotes: 1

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