diff --git a/news/2 Fixes/10170.md b/news/2 Fixes/10170.md
new file mode 100644
index 000000000000..f9cc91fb8d8c
--- /dev/null
+++ b/news/2 Fixes/10170.md	
@@ -0,0 +1 @@
+Perf improvements to executing startup code for `Data Science` features when extension loads.
diff --git a/news/3 Code Health/10176.md b/news/3 Code Health/10176.md
new file mode 100644
index 000000000000..28237633c5b2
--- /dev/null
+++ b/news/3 Code Health/10176.md	
@@ -0,0 +1 @@
+Track cold/warm times to execute notebook cells.
diff --git a/src/client/datascience/activation.ts b/src/client/datascience/activation.ts
index 7e73b10dd1a3..f2b7fbd012c6 100644
--- a/src/client/datascience/activation.ts
+++ b/src/client/datascience/activation.ts
@@ -30,7 +30,7 @@ export class Activation implements IExtensionSingleActivationService {
         this.disposables.push(this.jupyterInterpreterService.onDidChangeInterpreter(this.onDidChangeInterpreter, this));
         // Warm up our selected interpreter for the extension
         this.jupyterInterpreterService.setInitialInterpreter().ignoreErrors();
-        await this.contextService.activate();
+        this.contextService.activate().ignoreErrors();
     }
 
     private onDidOpenNotebookEditor(_: INotebookEditor) {
diff --git a/src/client/datascience/interactive-ipynb/nativeEditor.ts b/src/client/datascience/interactive-ipynb/nativeEditor.ts
index 8cdb2480432d..04f25608d803 100644
--- a/src/client/datascience/interactive-ipynb/nativeEditor.ts
+++ b/src/client/datascience/interactive-ipynb/nativeEditor.ts
@@ -77,6 +77,7 @@ export class NativeEditor extends InteractiveBase implements INotebookEditor {
     public get onDidChangeViewState(): Event<void> {
         return this._onDidChangeViewState.event;
     }
+    private sentExecuteCellTelemetry: boolean = false;
     private _onDidChangeViewState = new EventEmitter<void>();
     private closedEvent: EventEmitter<INotebookEditor> = new EventEmitter<INotebookEditor>();
     private executedEvent: EventEmitter<INotebookEditor> = new EventEmitter<INotebookEditor>();
@@ -362,8 +363,10 @@ export class NativeEditor extends InteractiveBase implements INotebookEditor {
     }
 
     protected submitCode(code: string, file: string, line: number, id?: string, editor?: TextEditor, debug?: boolean): Promise<boolean> {
+        const stopWatch = new StopWatch();
+        const submitCodePromise = super.submitCode(code, file, line, id, editor, debug).finally(() => this.sendPerceivedCellExecute(stopWatch));
         // When code is executed, update the version number in the metadata.
-        return super.submitCode(code, file, line, id, editor, debug).then(value => {
+        return submitCodePromise.then(value => {
             this.updateVersionInfoInNotebook()
                 .then(() => {
                     this.metadataUpdatedEvent.fire(this);
@@ -513,6 +516,18 @@ export class NativeEditor extends InteractiveBase implements INotebookEditor {
         // Actually don't close, just let the error bubble out
     }
 
+    private sendPerceivedCellExecute(runningStopWatch?: StopWatch) {
+        if (runningStopWatch) {
+            const props = { notebook: true };
+            if (!this.sentExecuteCellTelemetry) {
+                this.sentExecuteCellTelemetry = true;
+                sendTelemetryEvent(Telemetry.ExecuteCellPerceivedCold, runningStopWatch.elapsedTime, props);
+            } else {
+                sendTelemetryEvent(Telemetry.ExecuteCellPerceivedWarm, runningStopWatch.elapsedTime, props);
+            }
+        }
+    }
+
     /**
      * Update the Python Version number in the notebook data.
      *
diff --git a/src/client/datascience/jupyter/interpreter/jupyterInterpreterSubCommandExecutionService.ts b/src/client/datascience/jupyter/interpreter/jupyterInterpreterSubCommandExecutionService.ts
index 6596e5189dc8..83bc261d1431 100644
--- a/src/client/datascience/jupyter/interpreter/jupyterInterpreterSubCommandExecutionService.ts
+++ b/src/client/datascience/jupyter/interpreter/jupyterInterpreterSubCommandExecutionService.ts
@@ -83,7 +83,7 @@ export class JupyterInterpreterSubCommandExecutionService implements IJupyterSub
         }
 
         if (productsNotInstalled.length === 1 && productsNotInstalled[0] === Product.kernelspec) {
-            return DataScience.jupyterKernelSpecModuleNotFound();
+            return DataScience.jupyterKernelSpecModuleNotFound().format(interpreter.path);
         }
 
         return getMessageForLibrariesNotInstalled(productsNotInstalled, interpreter.displayName);
diff --git a/src/client/datascience/jupyter/kernels/kernelService.ts b/src/client/datascience/jupyter/kernels/kernelService.ts
index aee36b7050f9..2fe79ba5bfb7 100644
--- a/src/client/datascience/jupyter/kernels/kernelService.ts
+++ b/src/client/datascience/jupyter/kernels/kernelService.ts
@@ -99,9 +99,6 @@ export class KernelService {
                 if (item.language.toLowerCase() !== PYTHON_LANGUAGE.toLowerCase()) {
                     return false;
                 }
-                if (item.display_name !== option.displayName) {
-                    return false;
-                }
                 return this.fileSystem.arePathsSame(item.argv[0], option.path) || this.fileSystem.arePathsSame(item.metadata?.interpreter?.path || '', option.path);
             });
         } else {
diff --git a/src/client/telemetry/index.ts b/src/client/telemetry/index.ts
index 4d8ae0be241c..c0c212d3abb2 100644
--- a/src/client/telemetry/index.ts
+++ b/src/client/telemetry/index.ts
@@ -1459,8 +1459,16 @@ export interface IEventNamePropertyMapping {
     [Telemetry.DisableInteractiveShiftEnter]: never | undefined;
     [Telemetry.EnableInteractiveShiftEnter]: never | undefined;
     [Telemetry.ExecuteCell]: never | undefined;
-    [Telemetry.ExecuteCellPerceivedCold]: never | undefined;
-    [Telemetry.ExecuteCellPerceivedWarm]: never | undefined;
+    /**
+     * Telemetry sent to capture first time execution of a cell.
+     * If `notebook = true`, this its telemetry for native editor/notebooks.
+     */
+    [Telemetry.ExecuteCellPerceivedCold]: undefined | { notebook: boolean };
+    /**
+     * Telemetry sent to capture subsequent execution of a cell.
+     * If `notebook = true`, this its telemetry for native editor/notebooks.
+     */
+    [Telemetry.ExecuteCellPerceivedWarm]: undefined | { notebook: boolean };
     [Telemetry.ExecuteNativeCell]: never | undefined;
     [Telemetry.ExpandAll]: never | undefined;
     [Telemetry.ExportNotebook]: never | undefined;
diff --git a/src/test/datascience/jupyter/interpreter/jupyterInterpreterSubCommandExecutionService.unit.test.ts b/src/test/datascience/jupyter/interpreter/jupyterInterpreterSubCommandExecutionService.unit.test.ts
index f7d80baaa9d4..1a37eb1111ce 100644
--- a/src/test/datascience/jupyter/interpreter/jupyterInterpreterSubCommandExecutionService.unit.test.ts
+++ b/src/test/datascience/jupyter/interpreter/jupyterInterpreterSubCommandExecutionService.unit.test.ts
@@ -223,7 +223,7 @@ suite('Data Science - Jupyter InterpreterSubCommandExecutionService', () => {
 
             const reason = await jupyterInterpreterExecutionService.getReasonForJupyterNotebookNotBeingSupported(undefined);
 
-            assert.equal(reason, DataScience.jupyterKernelSpecModuleNotFound());
+            assert.equal(reason, DataScience.jupyterKernelSpecModuleNotFound().format(selectedJupyterInterpreter.path));
         });
         test('Can start jupyer notebook', async () => {
             const output = await jupyterInterpreterExecutionService.startNotebook([], {});