How do you use practrand? about wyhash HOT 2 CLOSED

RNG_test using PractRand version 0.95
RNG = RNG_stdin64, seed = unknown
test set = core, folding = standard (64 bit)

(...)
rng=RNG_stdin64, seed=unknown
length= 256 gigabytes (2^38 bytes), time= 15607 seconds
  no anomalies in 369 test result(s)

rng=RNG_stdin64, seed=unknown
length= 512 gigabytes (2^39 bytes), time= 38503 seconds
  Test Name                         Raw       Processed     Evaluation
  [Low1/64]DC6-9x1Bytes-1           R=  +5.9  p =  2.1e-3   unusual
  ...and 382 test result(s) without anomalies
  
rng=RNG_stdin64, seed=unknown
length= 1 terabyte (2^40 bytes), time= 117516 seconds
  no anomalies in 396 test result(s)