On Mon, Sep 12, 2022, Colton Lewis wrote: > Implement random number generation for guest code to randomize parts > of the test, making it less predictable and a more accurate reflection > of reality. > > Create a -r argument to specify a random seed. If no argument is > provided, the seed defaults to 0. The random seed is set with > perf_test_set_random_seed() and must be set before guest_code runs to > apply. > > The random number generator chosen is the Park-Miller Linear > Congruential Generator, a fancy name for a basic and well-understood > random number generator entirely sufficient for this purpose. Each > vCPU calculates its own seed by adding its index to the seed provided. Why not grab the kernel's pseudo-RNG from prandom_seed_state() + prandom_u32_state()?
