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Disk Speed Test (Read/Write): HDD, SSD Performance in Linux

From this article you’ll learn how to measure an input/output performance of a file system on such devices as HDD, SSD, USB Flash Drive etc.

I’ll show how to test the read/write speed of a disk from the Linux command line using dd command.

I’ll also show how to install and use hdparm utility for measuring read speed of a disk on Linux Mint, Ubuntu, Debian, CentOS, RHEL.

Take the average result: To get the accurate read/write speed, you should repeat the below tests several times (usually 3-5) and take the average result.

QEMU

Some quick tips for using QEMU from the command line (on macOS, but should work on Linux too).

Creating and booting an image

Download an OS ISO, e.g., the netinstall Debian 9.7 ISO:

wget https://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-9.7.0-amd64-netinst.iso

QEMU-KVM in Arch Linux

Check Virtualization Support

lscpu | grep -i Virtualization

VT-x for Intel
AMD-Vi for AMD

Ensure that your kernel includes KVM modules

Oh my zsh.

Install ZSH.

sudo apt install zsh-autosuggestions zsh-syntax-highlighting zsh

	from shodan import Shodan

	api = Shodan('API-KEY')
	results = api.search('isp:"ThreatMetrix Inc." port:443 Bad Request')

	for banner in results['matches']:
	# Only care about services that use SSL
	if 'ssl' in banner:
	print(banner['ssl']['cert']['subject']['CN'])

	# Maintainer: Sebastien Binet <binet@farnsworth>
	# Wu Xingbo <[email protected]>

	pkgname=systemtap
	pkgver=1.8
	pkgrel=1
	pkgdesc="SystemTap provides free software (GPL) infrastructure to simplify the gathering of information about the running Linux system."
	url="http://sourceware.org/systemtap/"
	arch=('i686' 'x86_64')
	license=('GPL')

	# use Telmate/proxmox 3.0.1-rc1 provider
	terraform {
	required_providers {
	proxmox = {
	source = "Telmate/proxmox"
	version = "3.0.1-rc1"
	}
	}
	}

	# jtyr's theme for oh-my-zsh

	# Color shortcuts
	RED=$fg_bold[red]
	GREEN=$fg_bold[green]
	YELLOW=$fg_bold[yellow]
	BLUE=$fg_bold[blue]
	CYAN=$fg_bold[cyan]
	RESET=$reset_color

	#!/bin/bash
	iatest=$(expr index "$-" i)

	#######################################################
	# SOURCED ALIAS'S AND SCRIPTS BY zachbrowne.me
	#######################################################

	# Source global definitions
	if [ -f /etc/bashrc ]; then
	. /etc/bashrc

	#!/bin/bash
	set -o errexit

	clear
	printf "\n* This script will download a cloud image and create a Proxmox VM template from it. *\n\n"

	### HOW TO USE
	### Pre-req:
	### - run on a Proxmox 6 server
	### - a dhcp server should be active on vmbr1