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Exploiting HiperSockets in a KVM Environment Using IP Routing with Linux on Z - Results and Findings

Abstract
This paper documents how to set up and configure KVM virtual machines to use HiperSockets with IP routing capabilities of the TCP/IP stack.

It provides a Network Performance comparison between both network configurations and illustrates how HiperSockets can achieve greater performance for many workload types, across a wide range of data-flow patterns, compared with using an OSA 10GbE card.

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Creation date
March 2018
 

Network Storage Protocols in a KVM Environment - NFS/SMB/iSCSI Report

A variety of storage protocols can be used to provision guest images in a KVM environment running on IBM Z. iSCSI, NFS, and SMB protocols provide access to storage resources via a TCP/IP network.

This paper describes the performance difference using iSCSI, NFS, and SMB storage protocols for the provisioning of images. Performance criteria of I/O throughput, I/O CPU cost, KVM guest CPU load, and KVM host CPU load metrics are compared when running a file system workload. Measurements are provided for each storage protocol individually, as well as an overall comparison between protocols.

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Creation date
November 2017
Last update
March 2018

KVM Network Performance - Best Practices and Tuning Recommendations

This paper explores different system configurations (running KVM guests), different networking configuration choices, as well as tuning recommendations for the KVM host and KVM guest environments to achieve greater network performance on the IBM Z platforms.

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Creation date
October 2016
Last update
March 2018

KVM for z Systems Performance (Webcast)

Live virtual class abstract

This session covers performance aspects of the KVM host, virtual devices and considerations for virtual server configurations to reach certain performance levels. The session will also give examples how to monitor host and guest.

Replay
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Creation date
July 2016