IDL> time_test
       1     0.335000 Empty For loop, 1 million times
       2     0.516000 Call empty procedure (1 param) 100,000 times
       3     0.297000 Add 100,000 integer scalars and store
       4     0.336000 25,000 scalar loops each of 5 ops, 2 =, 1 if)
       5     0.375000 Mult 512 by 512 byte by constant and store, 10 times
       6    0.0539999 Shift 512 by 512 byte and store, 10 times
       7     0.180000 
Add constant to 512 x 512 byte array and store, 10 times
       8     0.211000 Add two 512 by 512 byte images and store, 10 times
       9     0.297000 
Mult 512 by 512 floating by constant and store, 10 times
      10     0.250000 
Add constant to 512 x 512 floating and store, 10 times
      11     0.594000 
Add two 512 by 512 floating images and store, 10 times
      12     0.148000 Invert a 100 by 100 random matrix
      13     0.383000 Transpose 256 x 256 byte, FOR loops
      14    0.0470001 Transpose 256 x 256 byte, row and column ops
      15    0.0150000 Transpose 256 x 256 byte, transpose function
      16     0.828000 Log of 100,000 numbers, FOR loop
      17    0.0470001 Log of 100,000 numbers, vector ops
      18     0.875000 Add two 100000 element floating vectors, FOR loop
      19    0.0150000 Add two 100000 element floating vectors, vector op
      20    0.0780001 65536 point real to complex FFT
      21    0.0389999 Smooth 512 by 512 byte array, 5x5 boxcar
      22    0.0700001 Smooth 512 by 512 floating array, 5x5 boxcar
      23    0.0860001 Write and read 10 512 by 512 byte arrays
      6.07600=Total Time,       0.15441542=Geometric mean,      23 tests.