Performance Tuning Guidelines for Windows Server 2008 R2








titrePerformance Tuning Guidelines for Windows Server 2008 R2
page2/37
date de publication11.06.2018
taille0.5 Mb.
typeDocumentos
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Introduction


Windows Server® 2008 R2 performs well out of the box while consuming the least energy possible for most customer workloads. However, you might have business needs that are not met by using the default server settings. You might need the lowest possible energy consumption, or the lowest possible latency, or the maximum possible throughput on your server. This guide describes how you can further tune the server settings and obtain incremental performance or energy efficiency gains, especially when the nature of the workload varies little over time.

To have the most impact, your tuning changes should consider the hardware, the workload, the power budgets, and the performance goals of your server. This guide describes important tuning considerations and settings that can result in improved performance or energy efficiency. This guide describes each setting and its potential effect to help you make an informed decision about its relevance to your system, workload, performance, and energy usage goals.

Since the release of Windows Server 2008, customers have become increasingly concerned about energy efficiency in the datacenter. To address this need, Microsoft and its partners invested a large amount of engineering resources in developing and optimizing the features, algorithms, and settings in Windows Server 2008 R2 to maximize energy efficiency with minimal effects on performance. This paper describes energy consumption considerations for servers and provides guidelines for meeting your energy usage goals. Although “power consumption” is a more commonly used term, “energy consumption” is more accurate because power is an instantaneous measurement (Energy = Power *Time). Power companies typically charge datacenters for both the energy consumed (megawatt-hours) and the peak power draw required (megawatts).

Note: Registry settings and tuning parameters changed significantly from Windows Server 2003 and Windows Server 2008 to Windows Server 2008 R2. Be sure to use the latest tuning guidelines to avoid unexpected results.

As always, be careful when you directly manipulate the registry. If you must edit the registry, back it up before you make any changes.

In This Guide


This guide contains key performance recommendations for the following components:

Server Hardware

Networking Subsystem

Storage Subsystem
This guide also contains performance tuning considerations for the following server roles:

Web Servers

File Servers

Active Directory Servers

Remote Desktop Session Host

Remote Desktop Gateway

Virtualization Servers (Hyper-V)

File Server Workload (NetBench)

File Server Workload (SPECsfs2008)

Network Workload (NTttcp)

Remote Desktop Services Knowledge Worker Workload

SAP Sales and Distribution Two-Tier Workload

TCP-E Workload

Choosing and Tuning Server Hardware


It is important to select the proper hardware to meet your expected performance and power goals. Hardware bottlenecks limit the effectiveness of software tuning. This section provides guidelines for laying a good foundation for the role that a server will play.

It is important to note that there is a tradeoff between power and performance when choosing hardware. For example, faster processors and more disks will yield better performance but can also consume more energy. See “Choosing Server Hardware: Power Considerations” later in this guide for more details about these tradeoffs. Later sections of this paper provide tuning guidelines that are specific to a server role and include diagnostic techniques for isolating and identifying performance bottlenecks for certain server roles.
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