c - fast elapsed time on linux

Question

I am looking for a fast way to get the elapsed time between two calls of a function in C.

I considered using jiffies, but they are not available in userland. So, should I use getimeofday() or is there any fastest way to do this.

I am only interested in the elasped time between two calls, to use in a benchmark tool.

Answer 1

Take a look at clock_gettime, which provides access to high-resolution timers.