ARM servers are becoming increasingly common, making server technologies such as virtualization for ARM of growing importance. We present the first study of ARM virtualization performance on server hardware, including multi- core measurements of two popular ARM and x86 hypervisors, KVM and Xen. We show how ARM hardware support for virtualization can enable much faster transitions between VMs and the hypervisor, a key hypervisor operation.
However, current hypervisor designs, including both Type 1 hypervisors such as Xen and Type 2 hypervisors such as KVM, are not able to fully leverage this performance benefit for real application workloads. We discuss the reasons why and show that other factors related to hypervisor software design and implementation have a larger role in overall performance. Based on our measurements, we discuss changes to ARM’s hardware virtualization support that can potentially bridge the gap to bring its faster VM-to-hypervisor transition mechanism to modern Type 2 hypervisors running real applications. These changes have been incorporated into the latest ARM architecture.
- Linux 4.10 Release – Main Changes, ARM & MIPS Architectures
- How to Install Domoticz Home Automation System in NanoPi NEO and Other ARM Linux Boards
- CentOS 7.3 (1611) Linux Distro Officially Released for ARM64/AArch64 Machines
- The first official 64-bit OS for Raspberry Pi arrives -- but there's a catch
- SUSE Linux Enterprise Server Out for Raspberry Pi 3, Supports Bluetooth & Wi-Fi
- SUSE Linux Enterprise 12 SP2 Supports ARMv8-A and Intel Omni-Path Architectures