[root@xxx~]# sar -s | head
Linux my.kernel.version (my.hostname) 	12/07/10

08:00:01          CPU     %user     %nice   %system   %iowait    %steal     %idle
08:10:01          all      0.61      0.00      0.40      0.14      0.08     98.78
08:20:01          all      0.29      0.00      0.28      0.01      0.01     99.41
08:30:01          all      0.23      0.00      0.25      0.01      0.01     99.50
08:40:01          all      0.56      0.00      0.36      0.07      0.01     99.00
08:50:01          all      0.29      0.00      0.28      0.04      0.01     99.39
09:00:01          all      0.21      0.00      0.26      0.02      0.01     99.50
09:10:01          all      0.66      0.00      0.41      0.34      0.03     98.57