Extract ISR/DPC execution time data with xperf

xperf-dpcisr.bat

@echo off

REM --- Check for admin privileges ---
net session >nul 2>&1
if %errorlevel% neq 0 (
    echo error: administrator privileges required >&2
    exit /b 1
)

REM --- Check for xperf ---
where xperf.exe > nul 2>&1
if not %errorlevel% == 0 (
    echo error: xperf not found in path. Install "Windows Performance Toolkit" in the ADK from the link below >&2
    echo https://learn.microsoft.com/en-us/windows-hardware/get-started/adk-install
    exit /b 1
)

set "record_delay=3"
set "record_duration=10"
set "etl_file=%TEMP%\kernel.etl"
set "report_file=%TEMP%\report.txt"

echo starting in %record_delay%s
timeout /t %record_delay% /nobreak

echo recording for %record_duration%s
xperf -on PROC_THREAD+LOADER+INTERRUPT+DPC
timeout /t %record_duration% /nobreak

xperf -stop
xperf -d "%etl_file%"
xperf -i "%etl_file%" -o "%report_file%" -a dpcisr
echo report saved in %report_file%

exit /b 0