Identifying CPU bottlenecks
In this recipe, we are going to use the mpstat command to identify CPU bottlenecks.
How to do it...
The mpstat command is used to report per processor statistics in a tabular format.
We are now going to show the usage of the mpstat command:
bash-3.2$ mpstat 1 1
CPU minf mjf xcal intr ithr csw icsw migr smtx srw syscl usr sys wt idl
0 672 0 2457 681 12 539 17 57 119 0 4303 18 10 0 73
1 90 0 1551 368 22 344 6 37 104 0 3775 17 4 0 79
2 68 0 1026 274 14 217 4 24 83 0 2393 11 3 0 86
3 50 0 568 218 9 128 3 17 56 0 1319 7 2 0 92
4 27 0 907 340 12 233 3 22 72 0 2034 9 2 0 88
5 75 0 1777 426 25 370 5 33 111 0 4820 22 4 0 74
How it works...
In the preceding output of the mpstat command, each row of the table represents the activity of one processor...
