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I have a utility function that I suspect is eating up a large portion of my application's execution time. Using Time Profiler to look at the call stack, this function takes up a large portion of the execution time of any function from which it is called. However, since this utility function is called from many different sources, I am having trouble determining if, overall, this is the best use of my optimization time.
How can I look at total time spent in this function during program execution, regardless of who called it?
For clarity, I want to combine the selected entries with all other calls to that function into a single entry:
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To calculate time taken by a process, we can use clock() function which is available time.
1) Create a loop around whatneeds to be measured, that executes 10, 100, or 1000 times or more. Measure execution time to the nearest 10 msec. Then divide that time bythe number of times the loop executed. If the loop executed 1000 timesusing a 10 msec clock, you obtain a resolution of 10 µsec for theloop.
Using <time. The function clock() returns the number of clock ticks since the program started executing. If you divide it by the constant CLOCKS_PER_SEC you will get how long the program has been running, in seconds.
Hence the correct answer is Response time. Throughput: It is nothing but the measure of work i.e., the number of processes that are completed per time unit.
For me, what does the trick is ticking "Invert Call Tree". It seems to sort "leaf" functions in the call tree in order of those that cumulate the most time, and allow you to see what calls them.
The checkbox can be found in the right panel, called "Display Settings" (If hidden: ⌘2 or View->Inspectors->Show Display Settings)
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