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Arsolitt
165e175d70
The /1e9 divisor in gpu:{power,thermal}_throttle_fraction:rate5m was
derived empirically against DCGM 3.x on A10 — the counter documents
itself as microseconds but ticks in nanoseconds in practice. If a
future exporter release honors the documented units, pre-clamp values
would exceed 1.0 while clamp_max(..., 1) silently masks the drift,
plateauing every throttle fraction at 100% and making the panels
lie in unison.
Add a validation group that fires when the raw max/1e9 value exceeds
1.0 for 15m, so we notice and rescale to /1e6 before dashboards
silently mislead operators.
Signed-off-by: Arsolitt <arsolitt@gmail.com>