Limits the number of heaps created by the garbage collector.Use the following settings to manage the garbage collector's memory and processor usage:įor more information about some of these settings, see the Middle ground between workstation and server GC blog entry. For more information, see Background garbage collection.This is equivalent to setting the value to true. Configures whether background (concurrent) garbage collection is enabled.This is equivalent to setting the value to false. Default: Workstation garbage collection.Configures whether the application uses workstation garbage collection or server garbage collection.Use the following settings to select flavors of garbage collection: The subflavors of garbage collection are background and non-concurrent. For more information about differences between the two, see Workstation and server garbage collection. The two main flavors of garbage collection are workstation GC and server GC.

NET Framework, you can also set the value in the runtimeconfig.json or file. NET 5 and earlier versions: export COMPlus_gcServer=1 NET 6 or later versions: export DOTNET_gcServer=1įor. NET 5 or earlier: SET COMPlus_gcServer=1įor. NET 6 or a later version: SET DOTNET_gcServer=1 NET Framework, you can use environment variables. NET Framework app named A.exe, add the following XML to the A.exe.config file. To avoid having to change your config, use the 0x prefix when specifying a value in your app.config file.įor example, to specify 12 heaps for GCHeapCount for a. NET Framework, it's interpreted as decimal. NET Framework 4.8+, due to a bug, a value specified without the 0x prefix is interpreted as hexadecimal, but on previous versions of. N is interpreted as a hex value in either formatġ You can specify a value without the 0x prefix for an app.config file setting, but it's not recommended. NET runtime, there are different ways to specify the configuration values. NET runtime, you should still use the COMPlus_ prefix, for example, COMPlus_gcServer.įor different versions of the. If you're using a previous version of the. However, the COMPlus_ prefix will continue to work. NET 6 and later versions standardize on the prefix DOTNET_ instead of COMPlus_. If you're using the environment variables.For hexadecimal values, you can specify them with or without the '0x' prefix. For number values, use decimal notation for settings in the runtimeconfig.json or file and hexadecimal notation for environment variable settings.NET process on a machine to use server GC or the same heap hard limit. Because GC is per process, it rarely ever makes sense to set these configurations at the machine level.Settings that can be changed through APIs at run time, such as latency level, are omitted from this page. If you change an environment variable when a process is already running, the change won't be reflected in that process.

These configurations are only read by the runtime when the GC is initialized (usually this means during the process startup time).

Icollections 4.8.1