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Oliver Wright
Oliver Wright

Performance Tuning Guidelines For Windows 2008 R2,2012


Starting with Windows Server 2008, we have published a server tuning guide each release designed to help system administrators and IT professionals get the best performance out of their server deployments. For Windows Server 2012 we published the Windows Server 2012 Tuning Guide, but this time there is a twist. This time we harnessed our performance knowledge from the tuning guide and embodied some of it as part of a newly redesigned Server Performance Advisor (SPA) tool.




Performance tuning guidelines for Windows 2008 R2,2012



SPA 3.0 helps IT administrators collect metrics to diagnose performance issues on Windows Server 2012, Windows Server 2008 R2, and Windows Server 2008 for up to 100 servers unobtrusively without adding software agents or reconfiguring production servers. It generates comprehensive performance reports as shown in figure 1 below and historical charts with recommendations.


I will focus on SQL Server 2008 R2 as this is the latest SQL Server edition. My attempt was to create a generic tuning guide for System Center but because I am a SCOM guy some topics are just about SCOM.


SQL Server is a powerful and feature-rich database management platform that can support a wide range of applications, but if queries are not performing well or workloads are running into deadlocks, latency issues, and other disruptions in service, no one will care about how good the platform is. Their only concern will be application performance. This article describes nine best practices for SQL Server performance tuning.


The best way to ensure that SQL Server can meet its performance requirements is to implement a robust performance tuning strategy that takes into account all aspects of the SQL Server environment. Not only does this include indexes and queries, which are often the primary targets of tuning efforts, but also the hardware infrastructure, server and database settings, log and data files, and any other components that support the environment.


Performance turning is not a one-off operation that you perform early on and forget about until everything crashes. It is an ongoing effort that requires careful attention to all aspects of the SQL Server environment throughout its lifespan. Performance tuning includes the infrastructure that hosts the environment, the queries that access the data, the indexes that support the queries, the server and database settings that impact performance, and everything in between.


When tuning the environment, however, you should proceed with caution, making changes in manageable steps and thoroughly testing those changes before implementing them into production. Above all, performance tuning should not be treated as an afterthought, but rather as an integral part of your management and optimization efforts that begins when first setting up your SQL Server environment and continues until the environment is put out of commission.


An important performance optimizationtool for SQL performance tuning is the Database Engine Tuning Advisor. Thistool allows admins to evaluate single Transact-SQL statements or a batch ofstatements to determine where improvements can be made. Based on the result ofthe analysis, the tool also recommends actions to take.


AWS Support can assist with installation, configuration, and troubleshooting of third-party software on the supported list. For other more advanced topics such as performance tuning, troubleshooting of custom code or scripts, security questions, etc. it may be necessary to contact the third-party software provider directly. While AWS Support will make every effort to assist, any assistance beyond installation, configuration, and basic troubleshooting of supported third-party software will be on a best-effort basis only.


Automated upgrade: For customers with SQL Server 2008 R2 and Windows Server 2008 R2, AWS Systems Manager automates the performance of non-destructive in-place upgrades. SQL Server 2008 R2 customers can upgrade to SQL Server 2012 R2 and again to SQL Server 2016 (BYOL only). Windows Server 2008 R2 customers can upgrade to Windows Server 2012 R2. For customers with a License Included (LI) version of Windows Server or SQL Server, there is no additional licensing cost to upgrade. For more information, please click here.


If session s1 and s2 need to be replicated to an instance (backup server), the replication module batches the replication messages to be sent to that instance instead of sending separate replication messages. This improves performance. In configurations in which a lot of session replication is performed, you may find better performance by tuning the org.shoal.cache.transmitter.max.batch.size system property. This property determines the number of replication messages that constitute one batch.


This wiki content provides best practice performance tuning configurations for SAP Business Planning and Consolidations 10.0 and 10.1 If performance problems still persist after implementing these configurations please engage SAP services team to do a more detailed analysis of the environment. See the BPC 10 Sizing guide for a detailed understanding on how to size your system.


BPC 7.0 has it's own performance tuning guide geared toward Windows 2003. That is why it is not mentioned in this WIKI and any customers still using 7.0 should not use this WIKI and instead use the performance tuning guide for that version.


Step 1: Click Start Control Panel Add or Remove Programs. In the Add or Remove Programs windows select Microsoft SQL Server 2008 as shown in the snippet below and Click Change/Remove button.


Step 2: Once you click on Change/Remove button it will popup SQL Server 2008 windows as shown in the snippet below. There are three options basically available and they are Add, Repair and Remove.


Ashish Kumar Mehta is a database manager, trainer and technical author. He has more than a decade of IT experience in database administration, performance tuning, database development and technical training on Microsoft SQL Server from SQL Server 2000 to SQL Server 2014. Ashish has authored more than 325 technical articles on SQL Server across leading SQL Server technology portals. Over the last few years, he has also developed and delivered many successful projects in database infrastructure; data warehouse and business intelligence; database migration; and upgrade projects for companies such as Hewlett-Packard, Microsoft, Cognizant and Centrica PLC, UK. He holds an engineering degree in computer science and industry standard certifications from Microsoft including MCITP Database Administrator 2005/2008, MCDBA SQL Server 2000 and MCTS .NET Framework 2.0 Web Applications.


If you have no intention of using dynamically loaded modules (you probably don't if you're reading this and tuning your server for every last ounce of performance), then you should add -DDYNAMIC_MODULE_LIMIT=0 when building your server. This will save RAM that's allocated only for supporting dynamically loaded modules.


Running large installations of PRTG in a virtual environment is possible if you follow some specific rules and guidelines to achieve the required level of performance. For more information, see our Best Practice Guide: Running large installations of PRTG in a virtual environment.


Both Windows Vista and the first edition of Windows Server 2008 have serious performance issues, particularly if you use WMI. We strongly recommend that you do not use these operating systems for large installations.


Our latest speed tests have shown that Windows Server 2008 R2 offers the best performance. Nevertheless many customers are using Windows Server 2012 R2 for large installations without performance issues. The best way to reduce the load on the core server is to distribute your sensors to multiple remote probes.


Notes: - Reportedly, some older residential NAT routers with a SPI firewall may have problems with enabled tcp auto-tuning in it's "normal" state, resulting in slow speeds, packet loss, reduced network performance in general.- auto-tuning also causes problems with really old routers that do not support TCP Windows scaling. See MSKB 935400- netsh set commands take effect immediately after executing, there is no need to reboot.- sometimes when using "normal" mode and long lasting connections (p2p software / torrents), tcp windows can get very large and consume too much resources, if you're experiencing problems try a more conservative (restricted) setting.


Many of the registry keys tuning TCP/IP parameters from previous Windows versions no longer work in Vista and Server 2008. Below is a list of the few we've confirmed to still work, as well as some new additions. Note that for changes to these settings to take effect the computer needs to be rebooted. As always, a registry backup is recommended if making any changes, and some proficiency in using regedit is required.


A central feature of SQL Server Management Studio is the Object Explorer, which allows the user to browse, select, and act upon any of the objects within the server.[63] It can be used to visually observe and analyze query plans and optimize the database performance, among others.[64] SQL Server Management Studio can also be used to create a new database, alter any existing database schema by adding or modifying tables and indexes, or analyze performance. It includes the query windows which provide a GUI based interface to write and execute queries.[9]


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