Скачать или смотреть Linux tips! Check Disk Performance on Linux with dd Command | Quick and Easy Guide

In this video, we'll show you how to measure the read and write performance of your disk on a Linux system using the powerful dd command. Whether you're a system administrator or a curious Linux enthusiast, understanding disk performance is crucial for optimizing your system. We'll guide you step-by-step through the process and provide easy-to-follow commands.

dd if=/dev/zero of=/tmp/testfile bs=1G count=1 oflag=direct
dd if=/tmp/testfile of=/dev/null bs=1G count=1 iflag=direct
time dd if=/tmp/testfile of=/dev/null bs=1G count=1 iflag=direct

if=/dev/zero: Input file is /dev/zero, which provides a stream of zeros.
of=/tmp/testfile: Output file is /tmp/testfile.
bs=1G: Block size is 1 gigabyte.
count=1: Write 1 block.
oflag=direct: Use direct I/O to bypass the cache and write directly to the disk.