pub fn parse_line(line: &str, at: Instant) -> Option<PowerSample>Expand description
2026-09-26: Parse one CSV row of
--query-gpu=power.draw.average,clocks_event_reasons.sw_power_cap,clocks_event_reasons.hw_power_brake_slowdown
with --format=csv,noheader,nounits, e.g. 4.76, Not Active, Active.
None when the watt cell is not a finite, non-negative number, so a [N/A]
rail never integrates as zero watts. A missing or unrecognised flag cell
leaves that flag None rather than “not active”.