Guard paired GPU replay timings and normalize Windows diagnostic environments

scripts/windows/benchmark-native-replay.ps1

@@ -0,0 +1,17 @@
+[CmdletBinding()]
+param([Parameter(Mandatory=$true)][string]$Module,
+    [Parameter(Mandatory=$true)][string]$Candidate,
+    [Parameter(Mandatory=$true)][string]$FixtureDirectory,
+    [string]$HipRoot, [string]$Probe, [string]$OutputDirectory,
+    [ValidateRange(1,10000)][int]$Pairs=32,
+    [ValidateRange(1,256)][int[]]$Batches=@(1,64),
+    [ValidateSet('events','dispatch')][string[]]$Timings=@('events','dispatch'))
+$ErrorActionPreference='Stop'
+$repo=[IO.Path]::GetFullPath((Join-Path $PSScriptRoot '../..'))
+if (!$HipRoot) { $HipRoot=Join-Path $repo '.tools/therock-10.2.0a20260929/_rocm_sdk_core' }
+if (!$Probe) { $Probe=Join-Path $repo 'build/windows-rdna4-therock/d4r_native_replay_probe.exe' }
+if (!$OutputDirectory) { $OutputDirectory=Join-Path $repo ('test-results/native-benchmark-'+(Get-Date -Format 'yyyyMMdd-HHmmss-fff')) }
+& python.exe (Join-Path $repo 'tools/windows/benchmark_native_replay.py') --probe $Probe --hip-root $HipRoot `
+    --module $Module --candidate $Candidate --fixture-dir $FixtureDirectory --output-dir $OutputDirectory `
+    --pairs $Pairs --batches @Batches --timings @Timings
+if ($LASTEXITCODE) { throw "Native benchmark failed. Logs: $OutputDirectory" }

scripts/windows/test-async-k.ps1

@@ -3,6 +3,7 @@ param(
     [string]$NgxCore, [string]$DlssDll, [string]$NativeRoot,
     [string]$ZludaRoot, [string]$PackageRoot,
     [string]$Resolution = '3840x2160',
+    [string]$InputResolution,
     [switch]$ProfileGpuBoundary,
     [switch]$ProfileKernelsDeferred,
     [switch]$BatchInputCopies,
@@ -45,6 +46,7 @@ try {
             $arguments=@{RuntimeProfile='therock'; ZludaRoot=$ZludaRoot; PackageRoot=$PackageRoot;
                 NgxCore=$NgxCore; DlssDll=$DlssDll; NgxOnly=$true; NgxMode='d3d12'; NgxAbi='project-legacy';
                 Preset=11; NgxCreateFlags=11; NgxOutputResolution=$Resolution; RequireNativeNetwork=$true;
+                NgxInputResolution=$InputResolution;
                 CommandListBackend=$true; EarlyIndirectProbe=$true; PixelProfile=$PixelProfile;
                 BarrierMode='inherited-legacy'; Iterations=3; CaptureExceptions=$true; TimeoutSeconds=600;
                 OptiScalerDll=(Join-Path $repo 'dist/optiscaler-windows-d4r/OptiScaler.dll'); OutputDirectory=$output}
@@ -70,6 +72,7 @@ try {
         if ($LASTEXITCODE) { throw "Async $mode output mismatch" }
     }
     @{passed=$true; architecture='gfx1201'; preset=11; resolution=$Resolution;
+        inputResolution=$InputResolution;
         modes=@('burst','recreate'); framesPerMode=3; exactRgb=$true; gpuBoundaryTiming=[bool]$ProfileGpuBoundary;
         deferredKernelTiming=[bool]$ProfileKernelsDeferred; batchInputs=[bool]$BatchInputCopies; pixelProfile=$PixelProfile} |
         ConvertTo-Json | Set-Content -LiteralPath (Join-Path $OutputDirectory 'validation.json') -Encoding UTF8

scripts/windows/test-windows-rdna4.ps1

@@ -13,6 +13,7 @@ param(
     [ValidateSet(5, 11, 13)][int]$Preset = 11,
     [ValidateSet(0,11)][int]$NgxCreateFlags = 0,
     [string]$NgxOutputResolution = '512x288',
+    [string]$NgxInputResolution,
     [switch]$NgxOnly,
     [switch]$Trace,
     [switch]$RequireNativeNetwork,
@@ -90,6 +91,19 @@ function Invoke-Probe([string]$Name, [string]$Exe, [string[]]$Arguments) {
     $info.CreateNoWindow = $true
     $info.RedirectStandardOutput = $true
     $info.RedirectStandardError = $true
+    # Some PowerShell/.NET hosts restore a removed variable as an empty value.
+    # These task switches/paths use an empty value to mean unset, whereas Rust
+    # presence-based diagnostic flags would otherwise enable profiling.
+    foreach ($key in @($info.EnvironmentVariables.Keys)) {
+        if ($key.StartsWith('D4R_') -and [string]::IsNullOrWhiteSpace($info.EnvironmentVariables[$key])) {
+            $info.EnvironmentVariables.Remove($key)
+        }
+    }
+    # Disabled WGP has the ordinary CU semantics. Omit a disabled/empty switch
+    # from child environments so older ZLUDA builds keep their existing cache.
+    if ([Environment]::GetEnvironmentVariable('D4R_ZLUDA_WGP','Process') -ne '1') {
+        $info.EnvironmentVariables.Remove('D4R_ZLUDA_WGP')
+    }
     $process = New-Object System.Diagnostics.Process
     $process.StartInfo = $info
     if (!$process.Start()) { throw "Process start failed: $Exe" }
@@ -118,7 +132,7 @@ try {
     if (!$env:ZLUDA_CACHE_DIR) { $env:ZLUDA_CACHE_DIR = Join-Path $repoRoot 'build/zluda-cache-windows' }
     $summary.zludaCacheDirectory = $env:ZLUDA_CACHE_DIR
     foreach ($setting in @('D4R_ZLUDA_WMMA','D4R_ZLUDA_WMMA_FP8','D4R_ZLUDA_WMMA_FP8_NATIVE','D4R_ZLUDA_WMMA_F16_REFERENCE')) {
-        if ($null -eq $originalCodegen[$setting]) {
+        if ([string]::IsNullOrWhiteSpace($originalCodegen[$setting])) {
             [Environment]::SetEnvironmentVariable($setting, $(if ($setting -eq 'D4R_ZLUDA_WMMA_FP8_NATIVE') { '0' } else { '1' }), 'Process')
         }
     }
@@ -315,6 +329,7 @@ DisableSplash=true
                     }
                     $ngxArguments += @('--module', $localShim, '--pixel-profile', $PixelProfile, '--barrier-mode', $BarrierMode,
                         '--ngx-create-flags', "$NgxCreateFlags", '--ngx-output-resolution', $NgxOutputResolution)
+                    if ($NgxInputResolution) { $ngxArguments += @('--ngx-input-resolution', $NgxInputResolution) }
                     if ($EarlyIndirectProbe) {
                         if (!$CommandListBackend) { throw '-EarlyIndirectProbe requires -CommandListBackend' }
                         $ngxArguments += @('--early-indirect', '1')

scripts/windows/windows-game.ps1

@@ -251,6 +251,16 @@ try {
     $info.WorkingDirectory = $game
     $info.UseShellExecute = $false; $info.CreateNoWindow = $true
     $info.RedirectStandardOutput = $true; $info.RedirectStandardError = $true
+    # Empty task switches mean unset. Some PowerShell/.NET hosts preserve empty
+    # values, which would enable Rust's presence-based diagnostic flags.
+    foreach ($key in @($info.EnvironmentVariables.Keys)) {
+        if ($key.StartsWith('D4R_') -and [string]::IsNullOrWhiteSpace($info.EnvironmentVariables[$key])) {
+            $info.EnvironmentVariables.Remove($key)
+        }
+    }
+    if ([Environment]::GetEnvironmentVariable('D4R_ZLUDA_WGP','Process') -ne '1') {
+        $info.EnvironmentVariables.Remove('D4R_ZLUDA_WGP')
+    }
     $process = [Diagnostics.Process]::new(); $process.StartInfo = $info
     if (!$process.Start()) { throw 'Game diagnostic launch failed.' }
     $outFile = [IO.File]::Open((Join-Path $OutputDirectory 'd4r.stdout.log'), [IO.FileMode]::Create, [IO.FileAccess]::Write, [IO.FileShare]::Read)