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1. free is a command that displays used and available memory in your system. 2. Read the man page of the free command 3. Run the command free -w several times, running other programs in between, and store the results in a file Take note of the memory used, memory used for buffers, memory used for cache, and swap used. Run ram-intensive programs, or enough instances of programs, that there are significant (noticeable) changes to the available memory, buffers, cache, and swap. Do this at least until you can see meaningful changes to swap. Keep track of which programs you started between samples. Choose five meaningful samples points. Keep them in chronological order. They do not have to be a sequence of 5 runs, but sample i should occur before samplej for all i