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$mult=1e7; $buf = chr(1) x $mult; ... print "TIME1:",time() - $s,"\n"; print join ",",unpack '(B8)20',$out; # check result
TIME0:14 TIME1:2 01000001,11111111,01000010,11111111,01000011,11111111,01000100,1111111 +1,01000101,11111111,01000110,11111111,01000111,11111111,01001000,1111 +1111,01001001,11111111,01001010,11111111