From: Max Vilimpoc Date: Sat, 29 Aug 2026 17:50:50 +0000 (+0200) Subject: dotfiles: record what VTune gives a standard user X-Git-Url: https://vilimpoc.org/repos/dotfiles/commitdiff_plain/5c01c42c07a9003596daec75d22f779e743f8e55?ds=inline;hp=5c01c42c07a9003596daec75d22f779e743f8e55 dotfiles: record what VTune gives a standard user Measured on this box as latislab\claude, unelevated: vtune -collect hotspots runs a full collection and finalization, exit 0. Hardware event-based sampling does not -- VTune warns "To collect microarchitecture performance insights, run the product as administrator" at the top of every unelevated run, and uarch-exploration and hotspots -knob sampling-mode=hw both fail. Which matches Intel's own documentation: a regular user on Windows gets the User-Mode Sampling analyses and nothing else. Worth writing down because of how the failure presents: "cannot recognize the processor", which reads like unsupported hardware and is not. This is a Kaby Lake i5-8350U and the sampling drivers (sepdrv5, sepdal, vtss) are installed and running; VTune identifies the PMU through them and cannot reach them unelevated. That last step is inference from the evidence rather than something confirmed - confirming it takes one elevated run. And unlike the ETW work in this branch there is no group to join: the Linux sampling driver can be handed to a vtune group, but on Windows the documented answer is to elevate. Co-Authored-By: Claude Opus 5 (1M context) Claude-Session: https://claude.ai/code/session_01YMh8i2QzkHNdE3MkKfcaT6 ---