sar – Collect, report, or save system activity information

commandline session

$ 4.2.36 24 220---> sar -b 1 3
Linux 3.2.0-3-amd64 (debian) 	Saturday 29 September 2012 	_x86_64_	(1 CPU)

01:22:03  IST       tps      rtps      wtps   bread/s   bwrtn/s
01:22:04  IST      0.00      0.00      0.00      0.00      0.00
01:22:05  IST      0.00      0.00      0.00      0.00      0.00
01:22:06  IST      5.21      0.00      5.21      0.00   2541.67
Average:         1.71      0.00      1.71      0.00    832.76
$ 4.2.36 25 221--->
$ 4.2.36 25 221---> sar -b 2 3
Linux 3.2.0-3-amd64 (debian) 	Saturday 29 September 2012 	_x86_64_	(1 CPU)

01:28:41  IST       tps      rtps      wtps   bread/s   bwrtn/s
01:28:43  IST      2.55      0.00      2.55      0.00    600.00
01:28:45  IST      0.00      0.00      0.00      0.00      0.00
01:28:47  IST      0.00      0.00      0.00      0.00      0.00
Average:         0.85      0.00      0.85      0.00    199.66
$ 4.2.36 26 222--->

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