Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services. Privacy policy. Properly deploying a sufficient number of domain controllers, in the right domain, in the right locales, and to accommodate redundancy is critical to ensuring servicing client requests in a timely fashion.
This is an in-depth topic and outside of the scope of this guide. This cmdlet retrieves information about existing recursion scopes. This cmdlet creates a new DNS client subnet. This cmdlet changes the settings of an existing DNS client subnet. This cmdlet retrieves information about existing DNS client subnets.
This cmdlet creates a new DNS query resolution policy. DNS query resolution policies are used to specify how, or if, a query is responded to, based on different criteria. This cmdlet removes existing DNS policies. This cmdlet changes the settings of an existing DNS policy. This cmdlet retrieves information about existing DNS policies. This cmdlet creates a new DNS server zone transfer policy.
DNS zone transfer policies specify whether to deny or ignore a zone transfer based on different criteria. This cmdlet removes existing DNS server zone transfer policies.
This cmdlet changes settings of an existing DNS server zone transfer policy. This cmdlet retrieves RRL excception lists. This cmdlet removes an existing RRL exception list. This cmdlet changes RRL exception lists.
This cmdlet was updated to support unknown record type. For more information, see the following Windows Server Windows PowerShell command reference topics.
Skip to main content. Download Microsoft Edge More info. Contents Exit focus mode. Tuning IIS Is this page helpful? Please rate your experience Yes No. Any additional feedback? Note For servers running IIS Note In case the site runs unstable code, such as code with a memory leak, or otherwise unstable, setting the site to terminate on idle can be a quick-and-dirty alternative to fixing the code bug.
Note When sites are suspended, they will consume approximately 6 MB each, so in our case, memory usage if all sites are suspended would be around 3 GB. Note Larger keys provide more security, but they also use more CPU time. All components might not need to be encrypted. Submit and view feedback for This product This page. View all page feedback. In this article. Disables the user-mode IIS cache when set to False.
When the cache hit rate is very small, you can disable the cache completely to avoid the overhead that is associated with the cache code path. Disabling the user-mode cache does not disable the kernel-mode cache. Limits the IIS user-mode cache size to the specified size in Megabytes. IIS adjusts the default depending on available memory.
Choose the value carefully based on the size of the set of frequently accessed files versus the amount of RAM or the IIS process address space. Caches files up to the specified size.
The actual value depends on the number and size of the largest files in the data set versus the available RAM. Caching large, frequently requested files can reduce CPU usage, disk access, and associated latencies. Enables or disables compression if the current percentage CPU usage goes above or below specified limits. Starting with IIS 7. Compression is enabled if CPU drops below the enable threshold. Specifies the directory in which compressed versions of static files are temporarily stored and cached.
Consider moving this directory off the system drive if it is accessed frequently. Specifies whether a limit exists for how much disk space all compressed files can occupy. Compressed files are stored in the compression directory that is specified by the directory attribute. Specifies the number of bytes of disk space that compressed files can occupy in the compression directory. This setting might need to be increased if the total size of all compressed content is too large.
The default list is Default. Specifies the logging mode for a server. Change this value to CentralBinary to enable central binary logging. Indicates to HTTP.
When the value for this property is exceeded, IIS rejects subsequent requests with a error. Consider increasing this for applications that communicate with high-latency back-end data stores if errors are observed. When True, enables a bit application to run on a computer that has a bit processor. Consider enabling bit mode if memory consumption is a concern.
Because pointer sizes and instruction sizes are smaller, bit applications use less memory than bit applications. The drawback to running bit applications on a bit computer is that user-mode address space is limited to 4 GB. Specifies whether IIS looks for web. Skipping the additional file operations can significantly improve performance of websites that have a very large set of randomly accessed static content.
The name of the directory that ASP uses to store compiled templates when the in-memory cache overflows. Recommendation: Set to a directory that is not heavily used, for example, a drive that is not shared with the operating system, IIS log, or other frequently accessed content.
Specifies the maximum number of compiled ASP templates that can be cached on disk. This attribute specifies the maximum number of compiled ASP templates that can be cached in memory. Recommendation: Set to at least as many as the number of frequently-requested ASP scripts served by an application pool. If possible, set to as many ASP templates as memory limits allow. Specifies the maximum number of script engines that will keep cached in memory.
If possible, set to as many script engines as the memory limit allows. You can use either netsh commands or Windows PowerShell cmdlets to review or modify the TCP receive window autotuning level. Unlike in versions of Windows that pre-date Windows 10 or Windows Server , you can no longer use the registry to configure the TCP receive window size.
For more information about the deprecated settings, see Deprecated TCP parameters. For detailed information about the available autotuning levels, see Autotuning levels. For more information about this command, see Netsh commands for Interface Transmission Control Protocol. You can set receive window autotuning to any of five levels. The default level is Normal. The following table describes the levels.
If you use an application to capture network packets, the application should report data that resembles the following for different window autotuning level settings.
The following registry settings from Windows Server are no longer supported, and are ignored in later versions. Examples include firewall and antivirus software. A poorly-written WFP filter can significantly decrease a server's networking performance.
For links to all topics in this guide, see Network Subsystem Performance Tuning. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Is this page helpful? Please rate your experience Yes No. Any additional feedback? Note Some network adapters require you to enable offload features independently for the send and receive paths. Note If a network adapter does not expose manual resource configuration, either it dynamically configures the resources, or the resources are set to a fixed value that cannot be changed.
Note This setting does not work properly if the system BIOS has been set to disable operating system control of power management.
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