IOtest random read results - Linux
[Posted February 2, 2007 by corbet]
The following results were obtained from a run of IOtest 2.31 on a Linux
2.1.7 system.
Solid Data Systems IOtest V2.31
Sysname: Linux Release: 2.6.17-2-486 Machine: i686
Starting iteration count = 10000
Drive size = 4194175 blocks (2147417600 bytes)
Beginning 1 process random read test on /dev/hda3 [10000 iterations]
512 byte read ET= 83.238 secs IOs/second = 120 Data Rate = 0.060 MBs
1024 byte read ET= 71.556 secs IOs/second = 111 Data Rate = 0.111 MBs
2048 byte read ET= 84.857 secs IOs/second = 75 Data Rate = 0.150 MBs
4096 byte read ET= 61.444 secs IOs/second = 83 Data Rate = 0.333 MBs
8192 byte read ET= 35.496 secs IOs/second = 115 Data Rate = 0.923 MBs
16384 byte read ET= 29.309 secs IOs/second = 111 Data Rate = 1.788 MBs
32768 byte read ET= 24.169 secs IOs/second = 108 Data Rate = 3.469 MBs
65536 byte read ET= 22.379 secs IOs/second = 93 Data Rate = 5.994 MBs
Beginning 2 process random read test on /dev/hda3 [10000 iterations]
512 byte read ET= 164.449 secs IOs/second = 121 Data Rate = 0.061 MBs
1024 byte read ET= 134.909 secs IOs/second = 118 Data Rate = 0.118 MBs
2048 byte read ET= 119.069 secs IOs/second = 107 Data Rate = 0.215 MBs
4096 byte read ET= 96.136 secs IOs/second = 106 Data Rate = 0.426 MBs
8192 byte read ET= 76.820 secs IOs/second = 106 Data Rate = 0.853 MBs
16384 byte read ET= 55.554 secs IOs/second = 117 Data Rate = 1.887 MBs
32768 byte read ET= 46.146 secs IOs/second = 113 Data Rate = 3.633 MBs
65536 byte read ET= 39.864 secs IOs/second = 105 Data Rate = 6.729 MBs
Beginning 4 process random read test on /dev/hda3 [10000 iterations]
512 byte read ET= 288.755 secs IOs/second = 138 Data Rate = 0.068 MBs
1024 byte read ET= 241.918 secs IOs/second = 132 Data Rate = 0.132 MBs
2048 byte read ET= 202.830 secs IOs/second = 126 Data Rate = 0.252 MBs
4096 byte read ET= 154.626 secs IOs/second = 132 Data Rate = 0.529 MBs
8192 byte read ET= 126.765 secs IOs/second = 129 Data Rate = 1.033 MBs
16384 byte read ET= 104.599 secs IOs/second = 125 Data Rate = 2.004 MBs
32768 byte read ET= 87.005 secs IOs/second = 120 Data Rate = 3.854 MBs
65536 byte read ET= 74.854 secs IOs/second = 112 Data Rate = 7.168 MBs
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