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Jul 23, 2024
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Clarify how to show only user code in profiling tools
Mikejo5000 Jul 22, 2024
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AnnaMHuff Jul 22, 2024
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Merge pull request #12830 from Mikejo5000/mikejo-br23
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Merging changes synced from https://github.com/MicrosoftDocs/visualst…
Jul 23, 2024
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10 changes: 8 additions & 2 deletions docs/profiling/optimize-profiler-settings.md
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@@ -1,7 +1,7 @@
---
title: Optimizing Profiler settings
description: Learn how the Performance Profiler and Diagnostic Tools window in Visual Studio have many different settings that affect the overall performance of the tools.
ms.date: 02/28/2023
ms.date: 07/22/2024
ms.topic: how-to
helpviewer_keywords:
- Profiler, improve performance
Expand All @@ -28,7 +28,13 @@ Once downloaded, symbols are cached, which will speed up future analysis but sti

## Show External Code

Many of the tools within the **Performance Profiler** and **Diagnostic Tools** window have a concept of user code versus external code. User code is any code built by the open solution or open workspace. External code is anything else. By keeping the **Show external code** setting disabled, or **Show just my code** enabled, you allow the tools to aggregate external code to a single first level frame, greatly reducing the amount of processing required to show results. This allows users to see what was called in external code that created the slow down while keeping the data to be processed to a minimum. When possible, leave **Show external code** disabled and ensure that you have the solution or workspace open for the diagsession you're analyzing.
Many of the tools within the **Performance Profiler** and **Diagnostic Tools** window have a concept of user code versus external code. User code is any code built by the open solution or open workspace. External code is anything else. By keeping the **Show just my code** setting enabled, or the **Show external code** setting disabled, you allow the tools to aggregate external code to a single first level frame, greatly reducing the amount of processing required to show results. This allows users to see what was called in external code that created the slow down while keeping the data to be processed to a minimum. When possible, enable **Show external code** and make sure that you have the solution or workspace open for the *.diagsession* file that you're analyzing.

For most profiling tools, the user code option is present in the settings for the summary page of the report.

::: moniker range=">=vs-2022"
![Screenshot of Show just my code option.](../profiling/media/vs-2022/cpu-usage-show-just-my-code.png "Screenshot of Show just my code option.")
::: moniker-end

## Trace Duration

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