SItecore 8.0/8.1/8.2 Performance Config

Performance.config

<!--
	A set of performance optimizations to improve speed and reduce unnecessary tasks.
	
	Should be used everywhere.
-->
<configuration xmlns:patch="http://www.sitecore.net/xmlconfig/">
	<sitecore>
		<pipelines>
			<initialize>
				<!-- Disable speak precompilations; this increases first hit dialog load time but drastically reduces instance startup time (by about 40 sec) after a compile -->
				<processor type="Sitecore.Pipelines.Initialize.PrecompileSpeakViews, Sitecore.Speak.Client">
					<patch:delete />
				</processor>
				<processor type="Sitecore.Pipelines.Loader.DumpConfigurationFiles, Sitecore.Kernel">
					<patch:delete />
				</processor>
				<!-- Removing precompiler again, now for content testing :-) -->
				<processor type="Sitecore.Pipelines.Initialize.PrecompileSpeakViews, Sitecore.Speak.Client" use="ContentTesting">
					<patch:delete />
				</processor>
			</initialize>
		</pipelines>

		<settings>
			<setting name="Counters.Enabled">
				<!-- disable perf counters for a performance boost -->
				<patch:attribute name="value">false</patch:attribute>
			</setting>
		</settings>

		<scheduling>
			<agent type="Sitecore.Tasks.CounterDumpAgent">
				<patch:delete />
			</agent>
			<!-- get rid of log spam every 10 seconds -->
			<!-- not required for Sitecore 8.1 Update-1 and later -->
			<agent type="Sitecore.ListManagement.Analytics.UnlockContactListsAgent, Sitecore.ListManagement.Analytics">
				<patch:attribute name="interval">00:30:00</patch:attribute>
			</agent>
		</scheduling>
	</sitecore>
</configuration>

Performance.Dev.config

<!--
	A set of performance optimizations for development that vastly increase application startup time.
	
	Should not be used in production, as they largely disable forensic diagnostics that you'd want there over fast startup time after a compile.
-->
<configuration xmlns:patch="http://www.sitecore.net/xmlconfig/">
	<sitecore>
		<hooks>
			<hook type="Sitecore.Diagnostics.HealthMonitorHook, Sitecore.Kernel">
				<patch:delete />
			</hook>
			<hook type="Sitecore.Diagnostics.MemoryMonitorHook, Sitecore.Kernel">
				<patch:delete />
			</hook>
		</hooks>
		<pipelines>
			<contentSearch.queryWarmup patch:source="Sitecore.ContentSearch.config">
				<processor type="Sitecore.ContentSearch.Pipelines.QueryWarmups.RunQueries, Sitecore.ContentSearch">
					<patch:delete />
				</processor>
			</contentSearch.queryWarmup>
			<initialize>
				<processor type="Sitecore.Pipelines.Loader.ShowVersion, Sitecore.Kernel">
					<patch:delete />
				</processor>
				<processor type="Sitecore.Pipelines.Loader.ShowHistory, Sitecore.Kernel">
					<patch:delete />
				</processor>
			</initialize>
		</pipelines>
	</sitecore>
</configuration>

Does this apply to 8.2 also?

Yes

It should work for Sitecore 9 s well ?

Where do you put the config file? Also I'm guessing that Performance.Dev.config implies that it would be a Dev build? Sorry I'm very new to Sitecore.

One other question. Were you meaning to use transforms with these config files. Because if you do they will not work. Or were you just going to copy these files over to the appropriate environments? The reason I ask is because I don't see any transform tags on the Performance.Dev.config file.

One other question. Were you meaning to use transforms with these config files. Because if you do they will not work. Or were you just going to copy these files over to the appropriate environments? The reason I ask is because I don't see any transform tags on the Performance.Dev.config file.

These are Sitecore patch files, not XDT transform files. They do not require transform tags.

Does this still work on Sitecore 10.1.1?