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-6ac8239c727b3263067808/]
Bypassing hard drive’s buffer cache memory thus reading directly from the disk.
[crayon-6ac8239c727bc994397209/]
Read data from the second half of the disk that is if the hard drive size is 100GB.
[crayon-6ac8239c727bd780491527/]
To obtain cached reads run the following command:
[crayon-6ac8239c727be108728467/]
[crayon-6ac8239c727b3263067808/]
Bypassing hard drive’s buffer cache memory thus reading directly from the disk.
[crayon-6ac8239c727bc994397209/]
Read data from the second half of the disk that is if the hard drive size is 100GB.
[crayon-6ac8239c727bd780491527/]
To obtain cached reads run the following command:
[crayon-6ac8239c727be108728467/]