Test disk read write speed on linux CLI | Drupal 8

Test disk read write speed on linux CLI

Submitted by editor on Thu, 04/23/2020 - 09:02
Question

How to test Linux and Unix Test Disk I/O Performance ?

Test Disk Write Performance With dd Command

dd is a basic command une in all linux distributions to copy data. You can also use this feature to test dis performance.

Syntax

dd if=/dev/zero of=/path/to/output.file  bs=BLOCK-SIZE  count=NUMBER-OK-BLOCKS  oflag=dsync

Examples

dd if=/dev/zero of=./test.img bs=1G count=1 oflag=dsync
dd if=/dev/zero of=./test.img bs=64M count=1 oflag=dsync
dd if=/dev/zero of=./test.img bs=1M count=256 conv=fdatasync
dd if=/dev/zero of=./test.img bs=8k count=10k
dd if=/dev/zero of=./test.img bs=512 count=1000 oflag=dsync
## OR alternate syntax for GNU/dd ##
dd if=/dev/zero of=./test.img bs=1G count=1 conv=fdatasync

Do not forget to delete created file

 

Test Disk Read Performance With dd Command

Syntax

dd if=/path/to/input.file of=/dev/null bs=1M count=1024

Examples

dd if=./test.img of=/dev/null bs=1M count=1024
dd if=./test.img of=/dev/null bs=1G count=1

 

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