gzip 419.431u 43.160s 7:44.88 99.5%	0+0k 0+5665256io 0pf+0w
szip	259.655u 37.474s 4:58.52 99.5%	0+0k 0+7122648io 0pf+0w
szip-free 269.733u 33.707s 5:04.78 99.5%	0+0k 0+7108960io 0pf+0w