DotNet Core 3.1

This page describes the Optimization Pack for the component type DotNet Core 3.1.

Metrics

Metric	Unit	Description
gc_count	collections/s	The total number of garbage collections
gc_duration	seconds	The garbage collection duration
heap_hard_limit	bytes	The size of the heap

Parameters

Parameter	Type	Unit	Default	Domain	Restart	Description
csproj_System_GC_Server	categorical	CPUs	false	true, false	yes	The main flavor of the GC: set it to false for workstation GC or true for server GC. To be set in csproj file and requires rebuild.
csproj_System_GC_Concurrent	categorical	boolean	true	true, false	yes	Configures whether background (concurrent) garbage collection is enabled (setting to true). To be set in csproj file and requires rebuild.
runtime_System_GC_Server	categorical	boolean	false	true, false	yes	The main flavor of the GC: set it to false for workstation GC or true for server GC. To be set in csproj file and requires rebuild.
runtime_System_GC_Concurrent	categorical	boolean	true	true, false	yes	Configures whether background (concurrent) garbage collection is enabled (setting to true). To be set in csproj file and requires rebuild.
runtime_System_GC_HeapCount	integer	heapcount	8	1 → 1000	no	Limits the number of heaps created by the garbage collector. To be set in runtimeconfig.json in runtimeOptions: configProperties
runtime_System_GC_CpuGroup	categorical	boolean	0	1, 0	no	Configures whether the garbage collector uses CPU groups or not. Default is false. To be set in runtimeconfig.json
runtime_System_GC_NoAffinitize	categorical	boolean	false	true, false	no	Specifies whether to affinitize garbage collection threads with processors. To affinitize a GC thread means that it can only run on its specific CPU. To be set in runtimeconfig.json in runtimeOptions: configProperties
runtime_System_GC_HeapHardLimit	integer	bytes	20971520	16777216 → 1099511627776	no	Specifies the maximum commit size, in bytes, for the GC heap and GC bookkeeping. To be set in runtimeconfig.json in runtimeOptions: configProperties
runtime_System_GC_HeapHardLimitPercent	real	percent	0.75	0.1 → 100.0	no	Specifies the allowable GC heap usage as a percentage of the total physical memory. To be set in runtimeconfig.json in runtimeOptions: configProperties.
runtime_System_GC_HighMemoryPercent	integer	bytes	20971520	16777216 → 1099511627776	no	Specify the memory threshold that triggers the execution of a garbage collection. To be set in runtimeconfig.json.
runtime_System_GC_RetainVM	categorical	boolean	false	true, false	no	Configures whether segments that should be deleted are put on a standby list for future use or are released back to the operating system (OS). Default is false. To be set in runtimeconfig.json in runtimeOptions: configProperties
runtime_System_GC_LOHThreshold	integer	bytes	85000	850000 → 1099511627776	no	Specifies the threshold size, in bytes, that causes objects to go on the large object heap (LOH). To be set in runtimeconfig.json in runtimeOptions: configProperties
webconf_maxconnection	integer	connections	2	2 → 1000	no	This setting controls the maximum number of outgoing HTTP connections that you can initiate from a client. To be set in web.config (target app only) or machine.config (global)
webconf_maxIoThreads	integer	threads	20	20 → 1000	no	Controls the maximum number of I/O threads in the .NET thread pool. Automatically multiplied by the number of available CPUs. To be set in web.config (target app only) or machine.config (global). It requires autoConfig=false
webconf_minIoThreads	integer	threads	20	20 → 1000	no	The minIoThreads setting enable you to configure a minimum number of worker threads and I/O threads for load conditions. To be set in web.config (target app only) or machine.config (global). It requires autoConfig=false
webconf_maxWorkerThreads	integer	threads	20	20 → 1000	no	This setting controls the maximum number of worker threads in the thread pool. This number is then automatically multiplied by the number of available CPUs.To be set in web.config (target app only) or machine.config (global).It requires autoConfig=false
webconf_minWorkerThreads	integer	threads	20	20 → 1000	no	The minWorkerThreads setting enable you to configure a minimum number of worker threads and I/O threads for load conditions. To be set in web.config (target app only) or machine.config (global). It requires autoConfig=false
webconf_minFreeThreads	integer	threads	8	8 → 800	no	Used by the worker process to queue all the incoming requests if the number of available threads in the thread pool falls below its value. To be set in web.config (target app only) or machine.config (global). It requires autoConfig=false
webconf_minLocalRequestFreeThreads	integer	threads	4	4 → 7600	no	Used to queue requests from localhost (where a Web application sends requests to a local Web service) if the number of available threads falls below it. To be set in web.config (target app only) or machine.config (global). It requires autoConfig=false
webconf_autoConfig	categori	boolean	true	true, false	no	Enable settings the system.web configuration parameters. To be set in web.config (target app only) or machine.config (global)