chore: sync fork with microsoft/perfview main

.ado.yml

@@ -7,11 +7,8 @@ pr:
 jobs:
   - job: PerfView_Debug
     pool:
-      vmImage: 'windows-2022'
+      vmImage: 'windows-2025-vs2026'
       name: Azure Pipelines
-      demands:
-      - msbuild
-      - vstest
 
     steps:
     - template: /.pipelines/perfview-job.yml
@@ -28,11 +25,8 @@ jobs:
 
   - job: PerfView_Release
     pool:
-      vmImage: 'windows-2022'
+      vmImage: 'windows-2025-vs2026'
       name: Azure Pipelines
-      demands:
-      - msbuild
-      - vstest
 
     steps:
     - template: /.pipelines/perfview-job.yml

.azuredevops/dependabot.yml

@@ -0,0 +1,5 @@
+version: 2
+
+# Disabling dependabot on Azure DevOps as this is a mirrored repo. Updates should go through github.
+enable-campaigned-updates: false
+enable-security-updates: false

.github/CODEOWNERS

@@ -1,4 +1,4 @@
 # Users referenced in this file will automatically be requested as reviewers for PRs that modify the given paths.
 # See https://help.github.com/articles/about-code-owners/
 
-* @brianrob @cincuranet @leculver @mconnew @marklio
+* @microsoft/perfview-reviewers

.github/copilot-instructions.md

@@ -0,0 +1,70 @@
+# Copilot Instructions for PerfView
+
+## Project Overview
+
+PerfView is a Windows performance-analysis tool for investigating CPU and memory issues, built on the TraceEvent library for parsing ETW and EventPipe trace data. The solution (`PerfView.sln`) contains the WPF GUI application, the cross-platform TraceEvent library, and several supporting libraries.
+
+## Architecture
+
+- `src/PerfView/` — WPF GUI application (Windows-only, .NET Framework 4.7.2+, C# 7.3 features only)
+- `src/TraceEvent/` — Core trace parsing library (cross-platform, targets netstandard2.0)
+- `src/FastSerialization/` — Lightweight binary serialization library
+- `src/MemoryGraph/` — Memory dump analysis (graph-based heap representation)
+- `src/Utilities/` — Shared utility code
+- `src/HeapDump*/` — Heap dump capture using ClrMD (Windows-only native interop)
+- `src/EtwClrProfiler/` — Native C++ CLR profiler emitting ETW events (Windows-only)
+- `src/PerfViewExtensions/` — Extensibility mechanism ("Global" project)
+
+## Build & Test
+
+- **Full solution (Windows):** `build.cmd` or open `PerfView.sln` in Visual Studio 2026 with the repository `.vsconfig` components installed. Native ETWClrProfiler projects use the latest installed MSVC v145 toolset.
+- **Individual projects (cross-platform via dotnet CLI):**
+  - `dotnet build src/TraceEvent/TraceEvent.csproj -c Debug`
+  - `dotnet build src/FastSerialization/FastSerialization.csproj -c Debug`
+  - `dotnet build src/MemoryGraph/MemoryGraph.csproj -c Debug`
+- **Running tests:** `dotnet test <TestProject>.csproj -c Debug` — always use Debug configuration so assertions are active.
+  - `src/TraceEvent/TraceEvent.Tests/TraceEvent.Tests.csproj`
+  - `src/FastSerialization.Tests/FastSerialization.Tests.csproj`
+  - `src/LinuxTracing.Tests/LinuxTracing.Tests.csproj`
+  - `src/PerfView.Tests/PerfView.Tests.csproj` (Windows-only)
+  - `src/SymbolsAuth.Tests/SymbolsAuth.Tests.csproj`
+- Tests use **xUnit**. The full test suite should complete in under 1 minute.
+- NuGet uses central package management (`src/Directory.Packages.props`). Use the repo-local `Nuget.config` when restoring: `dotnet restore --configfile Nuget.config`.
+
+## C# Coding Conventions
+
+Follow existing patterns — when in doubt, match the surrounding code.
+
+### Naming
+- Standard .NET conventions: `PascalCase` for types, methods, and properties; `camelCase` for parameters and locals.
+- Private instance fields: prefix with `m_` (e.g., `m_nodeCount`). The `_` prefix is also acceptable.
+- Static fields: prefix with `s_` (e.g., `s_defaultSize`).
+- No Hungarian notation.
+
+### Class Layout
+- Order members for readability as a **public contract**: constructors/factories first, then properties, then methods.
+- All private members go **after** all public members, wrapped in `#region private` so Visual Studio outlining (Ctrl-M Ctrl-O) collapses them.
+- Fields go **together at the end** of the private region — this makes it easy to see all object state at a glance.
+
+### Comments & Documentation
+- This codebase is **heavily commented** — maintain that standard.
+- Public types and public members exposed outside their assembly **must** have XML doc comments (`/// <summary>`). Parameter-level docs are optional if names are descriptive.
+- Private fields often need comments, especially to document invariants they maintain.
+- Use inline comments to explain non-obvious logic and design decisions.
+
+### Error Handling & Assertions
+- Use `Debug.Assert()` liberally to validate internal invariants — this is why tests must run in Debug configuration.
+- Throw specific exceptions with descriptive messages for public API misuse.
+
+### Other Patterns
+- **Type aliases** for semantic clarity: `using Address = System.UInt64;`
+- **Lazy initialization** for expensive sub-objects (check for null, create on first access).
+- **Reuse event objects** in TraceEvent callbacks to minimize GC pressure.
+
+## Making Changes
+
+- Keep changes **minimal and focused** — complexity is the enemy (see `CONTRIBUTING.md`).
+- Prefer **simplicity over cleverness**. Performance optimizations that add complexity need measurements to justify them.
+- Run tests in **Debug** configuration before submitting changes.
+- PerfView embeds its support DLLs into the EXE at build time, creating non-obvious build dependencies. If you see "DLL not found" errors, a normal (non-clean) rebuild usually fixes it.
+- The `Global` project depends on PerfView — expect unresolved references there until PerfView builds first.

.pipelines/mirror.yml

@@ -1,9 +1,6 @@
 trigger:
   - main
 
-variables:
-  - group: 'DotNet-VSTS-Infra-Access'
-
 resources:
   repositories:
   - repository: 1esPipelines
@@ -29,6 +26,19 @@ extends:
       jobs:
         - job: Mirror
           steps:
+          - task: AzureCLI@2
+            displayName: 'Mint AzDO token via WIF'
+            inputs:
+              azureSubscription: 'DncEng Insertion: Roslyn and Razor'
+              scriptType: 'pscore'
+              scriptLocation: 'inlineScript'
+              inlineScript: |
+                $token = az account get-access-token --resource 499b84ac-1321-427f-aa17-267ca6975798 --query accessToken -o tsv
+                if ($LASTEXITCODE -ne 0) { Write-Error "Failed to get access token"; exit 1 }
+                $token = $token.Trim()
+                if ([string]::IsNullOrWhiteSpace($token)) { Write-Error "Token is empty"; exit 1 }
+                Write-Host "##vso[task.setvariable variable=AzdoToken;issecret=true]$token"
+
           - task: PowerShell@1
             displayName: 'Set SourceBranch Variable'
             inputs:
@@ -108,18 +118,18 @@ extends:
           - task: CmdLine@2
             displayName: 'Pull AzDO SourceBranch'
             inputs:
-              script: 'git pull --strategy=recursive --strategy-option no-renames https://dn-bot:$(dn-bot-devdiv-build-rw-code-rw)@devdiv.visualstudio.com/DevDiv/_git/perfView $(SourceBranch)'
+              script: 'git pull --strategy=recursive --strategy-option no-renames https://x-access-token:$(AzdoToken)@devdiv.visualstudio.com/DevDiv/_git/perfView $(SourceBranch)'
 
           - task: CmdLine@2
             displayName: 'Run git push'
             inputs:
-              script: 'git push https://dn-bot:$(dn-bot-devdiv-build-rw-code-rw)@devdiv.visualstudio.com/DevDiv/_git/perfView $(MirrorBranch)'
+              script: 'git push https://x-access-token:$(AzdoToken)@devdiv.visualstudio.com/DevDiv/_git/perfView $(MirrorBranch)'
 
           - task: PowerShell@1
             displayName: 'Create Pull Request'
             inputs:
               scriptType: inlineScript
-              arguments: '$(dn-bot-devdiv-build-rw-code-rw)'
+              arguments: '$(AzdoToken)'
               inlineScript: |
                 param(
                   [string]$AccessToken

.pipelines/perfcollect-job.yml

@@ -1,6 +1,9 @@
 steps:
-- task: DockerInstaller@0
-  displayName: 'Install Docker'
+- task: Bash@3
+  displayName: 'Get Docker Version'
+  inputs:
+    targetType: inline
+    script: 'docker --version'
 
 - task: Bash@3
   displayName: 'Build Containers'

.pipelines/perfview-job.yml

@@ -16,6 +16,13 @@ steps:
     msbuildArguments: '/restore'
     configuration: ${{ parameters.flavor }}
 
+- task: VisualStudioTestPlatformInstaller@1
+  displayName: 'Install VS Test'
+  inputs:
+    versionSelector: 'latestStable'
+    packageFeedSelector: 'customFeed'
+    customFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-public/nuget/v3/index.json'
+
 - task: VSTest@2
   displayName: 'Run Tests'
   inputs:
@@ -25,7 +32,9 @@ steps:
       **\bin\**\SymbolsAuthTests.dll
       **\bin\**\TraceEventTests.dll
       **\bin\**\PerfViewTests.dll
+      **\bin\**\TraceParserGen.Tests.dll
     testRunTitle: 'PerfView - ${{ parameters.flavor }}'
+    vsTestVersion: 'toolsInstaller'
     runTestsInIsolation: true
     otherConsoleOptions: '--blame'
 

Nuget.config

@@ -8,6 +8,15 @@
     <add key="dotnet-public" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-public/nuget/v3/index.json" />
     <add key="perfview-build" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/perfview-build/nuget/v3/index.json" />
   </packageSources>
+  <packageSourceMapping>
+    <packageSource key="dotnet-public">
+      <package pattern="*" />
+    </packageSource>
+    <packageSource key="perfview-build">
+      <package pattern="Microsoft.Diagnostics.Tracing*" />
+      <package pattern="PerfView.*" />
+    </packageSource>
+  </packageSourceMapping>
   <disabledPackageSources>
       <clear />
   </disabledPackageSources>

PerfView.sln

@@ -1,6 +1,7 @@
-Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 17
-VisualStudioVersion = 17.4.32821.20
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 18
+VisualStudioVersion = 18.6.11620.235 main
 MinimumVisualStudioVersion = 15.0
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PerfView", "src\PerfView\PerfView.csproj", "{6BAC7496-6953-41B8-9042-AAE45405A095}"
 	ProjectSection(ProjectDependencies) = postProject
@@ -38,6 +39,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		CONTRIBUTING.md = CONTRIBUTING.md
 		src\Directory.Build.props = src\Directory.Build.props
 		src\Directory.Build.targets = src\Directory.Build.targets
+		src\Directory.Packages.props = src\Directory.Packages.props
 		src\PerfViewCollect\PerfViewCollect.csproj = src\PerfViewCollect\PerfViewCollect.csproj
 		README.md = README.md
 	EndProjectSection
@@ -81,10 +83,22 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MemoryGraph", "src\MemoryGr
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "EtwHeapDump", "src\EtwHeapDump\EtwHeapDump.csproj", "{F266BD46-34EE-4EEB-8B21-6059F4DFC51F}"
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{1CAEF854-2923-45FA-ACB8-6523A7E45896}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FastSerialization.Tests", "src\FastSerialization.Tests\FastSerialization.Tests.csproj", "{2EC430A3-1B65-4628-B2F2-8DBEB4C03132}"
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PerfView.Tutorial", "src\PerfView.Tutorial\PerfView.Tutorial.csproj", "{DE35BED9-0E03-4DAC-A003-1ACBBF816973}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TraceParserGen.Tests", "src\TraceParserGen.Tests\TraceParserGen.Tests.csproj", "{F127C664-2F56-429B-BAA6-636034F766EF}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TraceEvent.Benchmarks", "src\TraceEvent\TraceEvent.Benchmarks\TraceEvent.Benchmarks.csproj", "{F2FBDEF0-4C45-44B2-8B92-9C5763BD2E69}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{827E0CD3-B72D-47B6-A68D-7590B98EB39B}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "TraceEvent", "TraceEvent", "{F2AE6042-2485-6774-F42B-98E120E28306}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "TraceEvent.Tests", "TraceEvent.Tests", "{282B72FF-D1CF-1C67-705A-D384E1729A5D}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "EmbeddedPdbTestApp", "src\TraceEvent\TraceEvent.Tests\EmbeddedPdbTestApp\EmbeddedPdbTestApp.csproj", "{1CE6D3C2-5E27-4296-89FD-5177387F0B15}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -391,6 +405,18 @@ Global
 		{F266BD46-34EE-4EEB-8B21-6059F4DFC51F}.Release|x64.Build.0 = Release|Any CPU
 		{F266BD46-34EE-4EEB-8B21-6059F4DFC51F}.Release|x86.ActiveCfg = Release|Any CPU
 		{F266BD46-34EE-4EEB-8B21-6059F4DFC51F}.Release|x86.Build.0 = Release|Any CPU
+		{2EC430A3-1B65-4628-B2F2-8DBEB4C03132}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{2EC430A3-1B65-4628-B2F2-8DBEB4C03132}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{2EC430A3-1B65-4628-B2F2-8DBEB4C03132}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{2EC430A3-1B65-4628-B2F2-8DBEB4C03132}.Debug|x64.Build.0 = Debug|Any CPU
+		{2EC430A3-1B65-4628-B2F2-8DBEB4C03132}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{2EC430A3-1B65-4628-B2F2-8DBEB4C03132}.Debug|x86.Build.0 = Debug|Any CPU
+		{2EC430A3-1B65-4628-B2F2-8DBEB4C03132}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{2EC430A3-1B65-4628-B2F2-8DBEB4C03132}.Release|Any CPU.Build.0 = Release|Any CPU
+		{2EC430A3-1B65-4628-B2F2-8DBEB4C03132}.Release|x64.ActiveCfg = Release|Any CPU
+		{2EC430A3-1B65-4628-B2F2-8DBEB4C03132}.Release|x64.Build.0 = Release|Any CPU
+		{2EC430A3-1B65-4628-B2F2-8DBEB4C03132}.Release|x86.ActiveCfg = Release|Any CPU
+		{2EC430A3-1B65-4628-B2F2-8DBEB4C03132}.Release|x86.Build.0 = Release|Any CPU
 		{DE35BED9-0E03-4DAC-A003-1ACBBF816973}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{DE35BED9-0E03-4DAC-A003-1ACBBF816973}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{DE35BED9-0E03-4DAC-A003-1ACBBF816973}.Debug|x64.ActiveCfg = Debug|Any CPU
@@ -403,17 +429,55 @@ Global
 		{DE35BED9-0E03-4DAC-A003-1ACBBF816973}.Release|x64.Build.0 = Release|Any CPU
 		{DE35BED9-0E03-4DAC-A003-1ACBBF816973}.Release|x86.ActiveCfg = Release|Any CPU
 		{DE35BED9-0E03-4DAC-A003-1ACBBF816973}.Release|x86.Build.0 = Release|Any CPU
+		{F127C664-2F56-429B-BAA6-636034F766EF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F127C664-2F56-429B-BAA6-636034F766EF}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F127C664-2F56-429B-BAA6-636034F766EF}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{F127C664-2F56-429B-BAA6-636034F766EF}.Debug|x64.Build.0 = Debug|Any CPU
+		{F127C664-2F56-429B-BAA6-636034F766EF}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{F127C664-2F56-429B-BAA6-636034F766EF}.Debug|x86.Build.0 = Debug|Any CPU
+		{F127C664-2F56-429B-BAA6-636034F766EF}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F127C664-2F56-429B-BAA6-636034F766EF}.Release|Any CPU.Build.0 = Release|Any CPU
+		{F127C664-2F56-429B-BAA6-636034F766EF}.Release|x64.ActiveCfg = Release|Any CPU
+		{F127C664-2F56-429B-BAA6-636034F766EF}.Release|x64.Build.0 = Release|Any CPU
+		{F127C664-2F56-429B-BAA6-636034F766EF}.Release|x86.ActiveCfg = Release|Any CPU
+		{F127C664-2F56-429B-BAA6-636034F766EF}.Release|x86.Build.0 = Release|Any CPU
+		{F2FBDEF0-4C45-44B2-8B92-9C5763BD2E69}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F2FBDEF0-4C45-44B2-8B92-9C5763BD2E69}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F2FBDEF0-4C45-44B2-8B92-9C5763BD2E69}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{F2FBDEF0-4C45-44B2-8B92-9C5763BD2E69}.Debug|x64.Build.0 = Debug|Any CPU
+		{F2FBDEF0-4C45-44B2-8B92-9C5763BD2E69}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{F2FBDEF0-4C45-44B2-8B92-9C5763BD2E69}.Debug|x86.Build.0 = Debug|Any CPU
+		{F2FBDEF0-4C45-44B2-8B92-9C5763BD2E69}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F2FBDEF0-4C45-44B2-8B92-9C5763BD2E69}.Release|Any CPU.Build.0 = Release|Any CPU
+		{F2FBDEF0-4C45-44B2-8B92-9C5763BD2E69}.Release|x64.ActiveCfg = Release|Any CPU
+		{F2FBDEF0-4C45-44B2-8B92-9C5763BD2E69}.Release|x64.Build.0 = Release|Any CPU
+		{F2FBDEF0-4C45-44B2-8B92-9C5763BD2E69}.Release|x86.ActiveCfg = Release|Any CPU
+		{F2FBDEF0-4C45-44B2-8B92-9C5763BD2E69}.Release|x86.Build.0 = Release|Any CPU
+		{1CE6D3C2-5E27-4296-89FD-5177387F0B15}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{1CE6D3C2-5E27-4296-89FD-5177387F0B15}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{1CE6D3C2-5E27-4296-89FD-5177387F0B15}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{1CE6D3C2-5E27-4296-89FD-5177387F0B15}.Debug|x64.Build.0 = Debug|Any CPU
+		{1CE6D3C2-5E27-4296-89FD-5177387F0B15}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{1CE6D3C2-5E27-4296-89FD-5177387F0B15}.Debug|x86.Build.0 = Debug|Any CPU
+		{1CE6D3C2-5E27-4296-89FD-5177387F0B15}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{1CE6D3C2-5E27-4296-89FD-5177387F0B15}.Release|Any CPU.Build.0 = Release|Any CPU
+		{1CE6D3C2-5E27-4296-89FD-5177387F0B15}.Release|x64.ActiveCfg = Release|Any CPU
+		{1CE6D3C2-5E27-4296-89FD-5177387F0B15}.Release|x64.Build.0 = Release|Any CPU
+		{1CE6D3C2-5E27-4296-89FD-5177387F0B15}.Release|x86.ActiveCfg = Release|Any CPU
+		{1CE6D3C2-5E27-4296-89FD-5177387F0B15}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
+	GlobalSection(NestedProjects) = preSolution
+		{F2AE6042-2485-6774-F42B-98E120E28306} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B}
+		{282B72FF-D1CF-1C67-705A-D384E1729A5D} = {F2AE6042-2485-6774-F42B-98E120E28306}
+		{1CE6D3C2-5E27-4296-89FD-5177387F0B15} = {282B72FF-D1CF-1C67-705A-D384E1729A5D}
+	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {9F85A2A3-E0DF-4826-9BBA-4DFFA0F17150}
 	EndGlobalSection
 	GlobalSection(TestCaseManagementSettings) = postSolution
 		CategoryFile = PerfView2.vsmdi
 	EndGlobalSection
-	GlobalSection(NestedProjects) = preSolution
-		{DE35BED9-0E03-4DAC-A003-1ACBBF816973} = {1CAEF854-2923-45FA-ACB8-6523A7E45896}
-	EndGlobalSection
 EndGlobal