99 lines
2.6 KiB
Bash
99 lines
2.6 KiB
Bash
#!/bin/bash
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# GPU Fan Controller — Delta QFR1212GHE
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# Режимы: 2=STANDBY(<25), 3=LOW(<30), 4=MED(<35), 5=HIGH(<40), 6=FULL(>45 или burst)
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# Режим 1 (STOP) — не используется, фан всегда крутится минимум на standby.
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# Порог burst: temp > 45°C ИЛИ рост >= 3°C за 2 секунды.
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LOG=/root/gpu_fan.log
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DEV=/dev/ttyUSB0
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stty -F "$DEV" 115200
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exec 3>"$DEV"
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exec 1>>"$LOG" 2>&1
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# Пороги
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TH_COLD=25
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TH_LOW=30
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TH_MED=35
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TH_HIGH=40
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TH_BURST=45
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TH_BURST_ROISE=3
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BURST_WINDOW=2
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BURST_DURATION=120
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# Хистерезис (мёртвая зона 2°)
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HYST=2
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prevTemp=0
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prevTime=0
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burstTimer=0
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lastMode=0
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noDataCount=0
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echo "[START] $(date) GPU Fan Ctrl PID=$$"
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while true; do
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TEMP=$(nvidia-smi --query-gpu=temperature.gpu --format=csv,noheader -i 0 | tr -cd '0-9')
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now=$(date +%s)
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if [ -z "$TEMP" ] || ! [ "$TEMP" -gt 0 ] 2>/dev/null; then
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noDataCount=$((noDataCount + 1))
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if [ $noDataCount -ge 10 ]; then
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echo "[ERROR] nvidia-smi failed 10+ times, aborting"
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exit 1
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fi
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sleep 1; continue
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fi
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noDataCount=0
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# Burst: temp rose TH_BURST_ROISE in BURST_WINDOW
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if [ $prevTemp -gt 0 ] && [ $((prevTime != 0 ? now - prevTime : 99999)) -le $BURST_WINDOW ]; then
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rise=$((TEMP - prevTemp))
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if [ $rise -ge $TH_BURST_ROISE ]; then
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burstTimer=$BURST_DURATION
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echo "[BURST-rise] rise=$rise°C in $((now-prevTime))s → mode 6"
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fi
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fi
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# Если в burst-режиме — держим режим 6
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if [ $burstTimer -gt 0 ]; then
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burstTimer=$((burstTimer - 1))
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if [ $lastMode -ne 6 ]; then
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echo "[MODE 6] full speed (burst, ${burstTimer}s remain)"
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lastMode=6
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echo "6" >&3
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fi
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prevTemp=$TEMP; prevTime=$now
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sleep 1; continue
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fi
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# Если burst истёк И temp >= TH_BURST — новый burst
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if [ $TEMP -ge $TH_BURST ]; then
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burstTimer=$BURST_DURATION
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echo "[MODE 6] full speed (re-burst: $TEMP°C)"
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lastMode=6; prevTemp=$TEMP; prevTime=$now
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echo "6" >&3
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sleep 1; continue
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fi
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# Обычная логика с хистерезисом
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newMode=5 # default: HIGH (35-39)
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if [ $TEMP -lt $((TH_COLD - HYST)) ]; then
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newMode=2 # STANDBY (< 23)
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elif [ $TEMP -lt $((TH_LOW - HYST)) ]; then
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newMode=3 # LOW (< 28)
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elif [ $TEMP -lt $((TH_MED - HYST)) ]; then
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newMode=4 # MED (< 33)
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fi
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# Отправляем только если режим изменился
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if [ $newMode -ne $lastMode ]; then
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echo "[MODE $newMode] temp=$TEMP°C (hysteresis: no-change zone)"
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lastMode=$newMode
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echo "$newMode" >&3
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fi
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prevTemp=$TEMP; prevTime=$now
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sleep 1
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done
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