A detailed test method for performance of Linux disks

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# Test Write 20Gb file
Sync && time-p bash-c "(dd If=/dev/zero of=test.dd bs=1000k count=20000;sync)"


The following is the test data for 10.10.14.199:


20000+0 Records in
20000+0 Records out
20480000000 bytes (GB) copied, 85.524 S, 239 MB/s
Real 87.24
User 0.03
SYS 24.67
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# Test Read 20Gb file
Echo 3 >/proc/sys/vm/drop_caches && time-p dd if=test.dd of=/dev/null bs=1m


The following is the test data for 10.10.14.199:

19531+1 Records in
19531+1 Records out
20480000000 bytes (GB) copied, 59.7922 s, 343 MB/s
Real 59.84
User 0.03
SYS 18.56

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# Delete temporary files
RM-RF TEST.DD

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A detailed test method for performance of Linux disks