- GPU load switches from bee-gpu-burn (compute burn, ~88% TDP) to
dcgmproftester -t 1004 / targeted_power via
resolveBenchmarkPowerLoadCommand — the same engine Power/Thermal Fit
uses and the hottest sustained NVIDIA load we have, so fans are
actually pushed toward their ceiling.
- Sample loop is now IPMI-hang-proof: every ipmitool read is time-boxed
in an abandonable goroutine, and the poll interval backs off
geometrically (1s→30s) when reads are slow, tightening again on
recovery. A plateau is only trusted while telemetry is healthy;
degraded runs ride out to MaxLoadSec. Summary gains fan_samples /
telemetry_degraded. Drops the per-second nvidia-smi+power+cpu-temp
sampling from the hot loop.
- Dead code removed: FanStressRow, GPUStressMetric, sampleFanStressRow,
sampleGPUStressMetrics, WriteFanStressCSV/WriteFanSensorsCSV,
analyzeMaxTemp, sampleSystemPowerResolved.
Topology fan tiles:
- size encodes the fan's ceiling RPM (its class), not current speed;
coloured fill rising from the bottom encodes live duty cycle
(current / ceiling), shown only when the ceiling was measured.
- glyph spin rate now maps absolute RPM into a human-perceptible band
(fanSpinPeriodSec: 2.2s/turn at <=1000 RPM, 0.35s at >=13000).
- the "N fans · N OK · tile size ∝ …" caption line is gone.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019VHG21rgTUiR1G3qFHTVmN
