GDL> TIME_COMPARE, ['g1107a', 'g1107b', 'g1107c', 'idl7'] g1107a: |TIME_TEST3 performance for IDL 6.0: g1107a: | OS_FAMILY=unix, OS=Linux, ARCH=x86_64 g1107a: | Mon Nov 07 18:10:16 2011 g1107b: |TIME_TEST3 performance for IDL 6.0: g1107b: | OS_FAMILY=unix, OS=Linux, ARCH=x86_64 g1107b: | Mon Nov 07 18:10:19 2011 g1107c: |TIME_TEST3 performance for IDL 6.0: g1107c: | OS_FAMILY=unix, OS=Linux, ARCH=x86_64 g1107c: | Mon Nov 07 18:10:21 2011 idl7: |TIME_TEST3 performance for IDL 7.1: idl7: | OS_FAMILY=unix, OS=linux, ARCH=x86_64 idl7: | Tue Oct 11 23:45:49 2011 Time g1107a g1107b g1107c idl7 0.04 100 100^ 100 105 Empty For loop, 2000000 times 0.01 100^ 104 100 120* Call empty procedure (1 param) 1000 0.01 153* 150* 147* 100^ Add 200000 integer scalars and stor 0.01 132* 135* 134* 100^ 50000 scalar loops each of 5 ops, 2 0.00 104 100^ 104 330* Mult 512 by 512 byte by constant an 0.01 109 106 100^ 124* Shift 512 by 512 byte and store, 30 0.01 100 100 100^ 252* Add constant to 512x512 byte array, 0.01 100 100^ 100^ 234* Add two 512 by 512 byte arrays and 0.00 103 100^ 104 387* Mult 512 by 512 floating by constan 0.01 122* 116* 119* 100^ Shift 512 x 512 array, 60 times 0.00 100 100^ 100^ 472* Add two 512 by 512 floating images, 0.01 100^ 101 100 118* Generate 1000000 random numbers 0.01 181* 182* 182* 100^ Invert a 192^2 random matrix 0.00 100^ 100^ 100^ 9355* LU Decomposition of a 192^2 random 0.02 158* 153* 158* 100^ Transpose 384^2 byte, FOR loops 0.01 101 100^ 100^ 143* Transpose 384^2 byte, row and colum 0.04 103 103 103 100^ Transpose 384^2 byte, TRANSPOSE fun 0.02 139* 204* 144* 100^ Log of 100000 numbers, FOR loop 0.00 100 100^ 100^ 350* Log of 100000 numbers, vector ops 1 0.01 100^ 101 100 161* 131072 point forward plus inverse F 0.03 514* 513* 513* 100^ Smooth 512 by 512 byte array, 5x5 b 0.01 597* 596* 600* 100^ Smooth 512 by 512 floating array, 5 0.02 100^ 101 101 246* Write and read 512 by 512 byte arra 0.40 132* 135* 132* 100^ Total Time 0.01 100 102 100^ 143* Geometric mean ^ = fastest. * = Slower by 15% or more. Mon Nov 07 18:11:02 2011