Bob Jenkin's small noncryptographic PRNG: http://burtleburtle.net/bob/rand/smallprng.html

RNG_test using PractRand version 0.93
RNG = RNG_stdin32, seed = 0x5b89aa1c
test set = normal, folding = standard (32 bit)

rng=RNG_stdin32, seed=0x5b89aa1c
length= 128 megabytes (2^27 bytes), time= 3.9 seconds
  no anomalies in 117 test result(s)

rng=RNG_stdin32, seed=0x5b89aa1c
length= 256 megabytes (2^28 bytes), time= 8.4 seconds
  no anomalies in 124 test result(s)

rng=RNG_stdin32, seed=0x5b89aa1c
length= 512 megabytes (2^29 bytes), time= 16.7 seconds
  no anomalies in 132 test result(s)

rng=RNG_stdin32, seed=0x5b89aa1c
length= 1 gigabyte (2^30 bytes), time= 33.1 seconds
  Test Name                         Raw       Processed     Evaluation
  [Low1/32]DC6-9x1Bytes-1           R=  +6.9  p =  8.0e-4   mildly suspicious
  ...and 140 test result(s) without anomalies

rng=RNG_stdin32, seed=0x5b89aa1c
length= 2 gigabytes (2^31 bytes), time= 65.8 seconds
  no anomalies in 148 test result(s)

rng=RNG_stdin32, seed=0x5b89aa1c
length= 4 gigabytes (2^32 bytes), time= 129 seconds
  no anomalies in 156 test result(s)

rng=RNG_stdin32, seed=0x5b89aa1c
length= 8 gigabytes (2^33 bytes), time= 254 seconds
  no anomalies in 165 test result(s)

rng=RNG_stdin32, seed=0x5b89aa1c
length= 16 gigabytes (2^34 bytes), time= 508 seconds
  no anomalies in 172 test result(s)

rng=RNG_stdin32, seed=0x5b89aa1c
length= 32 gigabytes (2^35 bytes), time= 1029 seconds
  no anomalies in 180 test result(s)

rng=RNG_stdin32, seed=0x5b89aa1c
length= 64 gigabytes (2^36 bytes), time= 2000 seconds
  no anomalies in 189 test result(s)

rng=RNG_stdin32, seed=0x5b89aa1c
length= 128 gigabytes (2^37 bytes), time= 3914 seconds
  Test Name                         Raw       Processed     Evaluation
  BCFN(2+0,13-0,T)                  R=  +8.1  p =  6.8e-4   unusual          
  ...and 195 test result(s) without anomalies

rng=RNG_stdin32, seed=0x5b89aa1c
length= 256 gigabytes (2^38 bytes), time= 7745 seconds
  Test Name                         Raw       Processed     Evaluation
  BCFN(2+0,13-0,T)                  R=  +8.6  p =  4.1e-4   unusual          
  ...and 203 test result(s) without anomalies

rng=RNG_stdin32, seed=0x5b89aa1c
length= 512 gigabytes (2^39 bytes), time= 15507 seconds
  Test Name                         Raw       Processed     Evaluation
  BCFN(2+0,13-0,T)                  R= +13.6  p =  8.8e-7   very suspicious  
  ...and 212 test result(s) without anomalies

rng=RNG_stdin32, seed=0x5b89aa1c
length= 1 terabyte (2^40 bytes), time= 31003 seconds
  Test Name                         Raw       Processed     Evaluation
  BCFN(2+0,13-0,T)                  R= +28.1  p =  1.4e-14    FAIL !         
  ...and 219 test result(s) without anomalies