* /dev/urandom
				lzo		zlib		compression time ratio(%)
     10MBytes
compression time(sec)		0.271553	0.721236	37.65106012
output size(bytes)		10537086	10513920	
compression size ratio(%)	100.4502445	100.2294026	

     100MBytes
compression time(sec)		2.671278	7.229928	36.94750487
output size(bytes)		105370774	105139200	
compression size ratio(%)	100.4854756	100.2646381	

     1GBytes
compression time(sec)		27.627126	74.94164	36.86485377
output size(bytes)		1078997064	1076625408	
compression size ratio(%)	100.489049	100.2681722	

  * /dev/zero
				lzo		zlib		compression time ratio(%)
     10MBytes
compression time(sec)		0.020834	0.238794	8.724674824
output size(bytes)		71680		104960		
compression size ratio(%)	0.683326825	1.000585709	

     100MBytes
compression time(sec)		0.208346	2.441701	8.532821996
output size(bytes)		716800		1049600		
compression size ratio(%)	0.683567048	1.000937463	

     1GBytes
compression time(sec)		2.123407	26.047801	8.151962617
output size(bytes)		7340032		10747904	
compression size ratio(%)	0.683591142	1.000972744