ex1.bash : groups=484 count=6585
	time: 0:01.42 real, 1.26 user, 0.20 sys
	context-switch:	135+1393, page-faults: 0+59578

ex1-bis.bash : groups=484 count=6585
	time: 0:01.22 real, 1.09 user, 0.16 sys
	context-switch:	145+1311, page-faults: 0+60076

ex1-c : groups=484 count=6585
	time: 0:00.00 real, 0.00 user, 0.00 sys
	context-switch:	0+1, page-faults: 0+71

ex2.bash : groups=484 count=3276
	time: 0:01.35 real, 1.18 user, 0.20 sys
	context-switch:	139+1360, page-faults: 0+59397

ex2-bis.bash : groups=484 count=3276
	time: 0:01.30 real, 1.11 user, 0.22 sys
	context-switch:	112+1356, page-faults: 0+57986

ex2-c : groups=484 count=3276
	time: 0:00.00 real, 0.00 user, 0.00 sys
	context-switch:	0+1, page-faults: 0+72