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Optimizing KVM Virtual Machine Performance with VirtIO Drivers and QEMU Tuning: Acceleration Techniques for Linux Guests

By admin March 20, 2026

Is your KVM virtual machine running sluggishly? This article will guide you on how to optimize performance for Linux guests. You'll learn to use VirtIO Drivers and QEMU Tuning techniques, based on practical experience from a homelab.

Virtualization

QEMU/KVM Installation and Configuration Guide on CentOS/RHEL: Optimizing Virtualization Performance

By admin March 13, 2026

KVM/QEMU on CentOS/RHEL is a high-performance virtualization solution, ideal for servers and homelabs. This article provides a detailed guide to installation, configuration, and performance optimization, sharing practical experience to help you master this platform from A to Z.

Virtualization

KVM Live Migration with virsh: Move VMs Between Hosts Without Downtime

By admin March 6, 2026

Live migration lets you move a running KVM virtual machine to another host without shutting it down. This guide walks through setting up NFS shared storage, configuring libvirtd for remote access, and performing the migration with virsh — including real-time monitoring and solutions to common errors.

Virtualization

How to Use libvirt to Manage KVM Virtual Machines from the Command Line (virsh)

By admin March 6, 2026

A complete virsh reference — the libvirt CLI tool for managing KVM virtual machines on Linux. Covers creating VMs, snapshots, cloning, monitoring, and debugging frozen VMs in the middle of the night. A practical guide for admins working without a GUI.

Virtualization

KVM Installation and Usage Guide on Ubuntu: From Zero to Your First Virtual Machine

By admin March 1, 2026

KVM is a hypervisor built into the Linux kernel, offering better performance than VirtualBox and remaining stable after kernel updates. This guide covers installing KVM on Ubuntu, creating VMs from ISO using virt-install, and managing VMs daily with virsh — suitable for both servers and desktops.

Virtualization

Configuring Network Bridge and TAP Interface for KVM on Linux — Hands-On from the Homelab

By admin March 1, 2026

A guide to configuring a network bridge (br0) and TAP interface for KVM virtual machines on Linux — from concept to hands-on practice with Netplan and libvirt. VMs get a real IP on the LAN, connecting directly like a physical machine, no NAT involved.