Hard drive speed test using Linux command line and hdparm
- I will use
/dev/sdcas our testing block device.
Note that all tests should be run multiple times and average time should be calculated to get more accurate result.
[crayon-6684a7db76bd3842606542/]
Bypassing hard drive’s buffer cache memory thus reading directly from the disk.
[crayon-6684a7db76bdc965343947/]
Read data from the second half of the disk that is if the hard drive size is 100GB.
[crayon-6684a7db76bde367587781/]
To obtain cached reads run the following command:
[crayon-6684a7db76be0356452469/]
[crayon-6684a7db76bd3842606542/]
Bypassing hard drive’s buffer cache memory thus reading directly from the disk.
[crayon-6684a7db76bdc965343947/]
Read data from the second half of the disk that is if the hard drive size is 100GB.
[crayon-6684a7db76bde367587781/]
To obtain cached reads run the following command:
[crayon-6684a7db76be0356452469/]