Monitor disk activity using sar
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下一篇 2012-03-27 13:48:56
/ 个人分类:性能测试
We can use sar to monitor disk IO activity on Linux. Sample output:
sar -b
05:53:03 PM LINUX RESTART
06:00:01 PM tps rtps wtps bread/s bwrtn/s
06:10:01 PM 1421.49 180.84 1240.66 10910.58 28497.24
06:20:01 PM 4.82 0.35 4.47 8.94 52.26
06:30:01 PM 3.75 0.02 3.74 0.12 42.17
06:40:01 PM 5.70 0.07 5.63 0.56 59.60
06:50:01 PM 3.57 0.01 3.57 0.04 39.61
07:00:01 PM 5.19 0.16 5.03 2.48 65.62
07:10:01 PM 68.31 51.25 17.06 532.22 266.63
07:20:01 PM 64.88 40.02 24.86 353.28 453.28
07:30:02 PM 3.76 0.01 3.75 0.04 41.58
07:40:01 PM 6.85 0.06 6.79 0.48 68.28
07:50:01 PM 3.58 0.01 3.58 0.04 39.77
08:00:01 PM 5.00 0.00 5.00 0.00 65.03
08:10:01 PM 6.72 0.29 6.43 3.57 68.12
08:20:01 PM 52.87 18.09 34.78 1099.17 722.94
08:30:03 PM 1872.56 1216.01 656.55 32150.18 49787.32
08:40:03 PM 2868.76 1536.31 1332.45 36736.45 63411.69
08:50:03 PM 2919.72 1739.57 1180.15 42117.65 57012.38
09:00:01 PM 1877.46 1153.17 724.29 25919.17 37001.17
09:10:01 PM 81.93 43.21 38.72 654.82 755.66
09:20:01 PM 31.93 23.09 8.84 406.96 111.95
09:30:01 PM 17.74 9.67 8.07 166.11 100.96
09:40:01 PM 98.92 90.17 8.76 1587.67 97.32
09:50:01 PM 9.19 2.82 6.37 49.47 77.05
Average: 467.30 247.95 219.35 6213.88 9749.75
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