added spike detector

nano-diagnostics.sh

@@ -7,16 +7,39 @@
 # Default duration: 60 seconds (can be overridden by argument)
 DURATION=${1:-60}
 INTERVAL_MS=200  # milliseconds
-LOG_FILE="fan_diagnostic_$(date +%Y%m%d_%H%M%S).log"
+TIMESTAMP=$(date +%Y%m%d_%H%M%S)
+LOG_FILE="fan_diagnostic_${TIMESTAMP}.log"
+SPIKE_LOG="fan_spikes_${TIMESTAMP}.log"
+
+# Thresholds for spike detection
+CPU_SPIKE_THRESHOLD=50  # CPU usage above 50%
+TEMP_SPIKE_THRESHOLD=70  # Temperature above 70°C
+TEMP_INCREASE_THRESHOLD=5  # Temperature increase of 5°C or more
+
+# Baseline values
+PREV_TEMP=0
+BASELINE_CPU=0
+SAMPLE_COUNT=0
 
 echo "==================================" | tee -a "$LOG_FILE"
 echo "Linux Fan Diagnostic Script" | tee -a "$LOG_FILE"
 echo "Started: $(date)" | tee -a "$LOG_FILE"
 echo "Duration: ${DURATION}s | Interval: ${INTERVAL_MS}ms" | tee -a "$LOG_FILE"
-echo "Log file: $LOG_FILE" | tee -a "$LOG_FILE"
+echo "Main log: $LOG_FILE" | tee -a "$LOG_FILE"
+echo "Spike log: $SPIKE_LOG" | tee -a "$LOG_FILE"
 echo "==================================" | tee -a "$LOG_FILE"
 echo "" | tee -a "$LOG_FILE"
 
+# Initialize spike log
+echo "==================================" > "$SPIKE_LOG"
+echo "CPU & TEMPERATURE SPIKE LOG" >> "$SPIKE_LOG"
+echo "Started: $(date)" >> "$SPIKE_LOG"
+echo "CPU Spike Threshold: ${CPU_SPIKE_THRESHOLD}%" >> "$SPIKE_LOG"
+echo "Temp Spike Threshold: ${TEMP_SPIKE_THRESHOLD}°C" >> "$SPIKE_LOG"
+echo "Temp Increase Threshold: ${TEMP_INCREASE_THRESHOLD}°C" >> "$SPIKE_LOG"
+echo "==================================" >> "$SPIKE_LOG"
+echo "" >> "$SPIKE_LOG"
+
 # System Information
 echo "=== SYSTEM INFORMATION ===" >> "$LOG_FILE"
 echo "Hostname: $(hostname)" >> "$LOG_FILE"
@@ -62,14 +85,16 @@ echo "Starting monitoring for ${DURATION} seconds..." | tee -a "$LOG_FILE"
 START_TIME=$(date +%s)
 END_TIME=$((START_TIME + DURATION))
 SAMPLE=0
+SPIKE_COUNT=0
 
 while [ $(date +%s) -lt $END_TIME ]; do
     SAMPLE=$((SAMPLE + 1))
-    TIMESTAMP=$(date +"%Y-%m-%d %H:%M:%S.%3N")
+    TIMESTAMP_SAMPLE=$(date +"%Y-%m-%d %H:%M:%S.%3N")
     
-    echo "--- Sample #${SAMPLE} at ${TIMESTAMP} ---" >> "$LOG_FILE"
+    echo "--- Sample #${SAMPLE} at ${TIMESTAMP_SAMPLE} ---" >> "$LOG_FILE"
     
     # CPU Temperature
+    TEMP_C=0
     if [ -f /sys/class/thermal/thermal_zone0/temp ]; then
         TEMP=$(cat /sys/class/thermal/thermal_zone0/temp)
         TEMP_C=$((TEMP / 1000))
@@ -78,44 +103,126 @@ while [ $(date +%s) -lt $END_TIME ]; do
     
     # Overall CPU usage
     CPU_USAGE=$(top -bn1 | grep "Cpu(s)" | sed "s/.*, *\([0-9.]*\)%* id.*/\1/" | awk '{print 100 - $1}')
+    CPU_USAGE_INT=$(echo "$CPU_USAGE" | cut -d'.' -f1)
     echo "CPU Usage: ${CPU_USAGE}%" >> "$LOG_FILE"
     
     # Top 5 CPU consuming processes
+    TOP_PROCESSES=$(ps aux --sort=-%cpu | head -6 | tail -5)
     echo "Top CPU processes:" >> "$LOG_FILE"
-    ps aux --sort=-%cpu | head -6 | tail -5 >> "$LOG_FILE"
+    echo "$TOP_PROCESSES" >> "$LOG_FILE"
     
     # Docker containers CPU usage (if docker is running)
+    DOCKER_STATS=""
     if command -v docker &> /dev/null && docker ps -q &> /dev/null; then
+        DOCKER_STATS=$(docker stats --no-stream --format "table {{.Name}}\t{{.CPUPerc}}\t{{.MemUsage}}" 2>&1)
         echo "Docker container stats:" >> "$LOG_FILE"
-        docker stats --no-stream --format "table {{.Name}}\t{{.CPUPerc}}\t{{.MemUsage}}" >> "$LOG_FILE" 2>&1
+        echo "$DOCKER_STATS" >> "$LOG_FILE"
     fi
     
     # Fan speed (if available)
+    FAN_INFO=""
     if command -v sensors &> /dev/null; then
-        FAN_SPEED=$(sensors | grep -i "fan" | head -1)
+        FAN_INFO=$(sensors | grep -i "fan")
-        if [ ! -z "$FAN_SPEED" ]; then
+        if [ ! -z "$FAN_INFO" ]; then
-            echo "Fan: $FAN_SPEED" >> "$LOG_FILE"
+            echo "Fan: $FAN_INFO" >> "$LOG_FILE"
         fi
     fi
     
     echo "" >> "$LOG_FILE"
     
+    # SPIKE DETECTION
+    SPIKE_DETECTED=0
+    SPIKE_REASONS=""
+    
+    # Check CPU spike
+    if [ ! -z "$CPU_USAGE_INT" ] && [ "$CPU_USAGE_INT" -gt "$CPU_SPIKE_THRESHOLD" ]; then
+        SPIKE_DETECTED=1
+        SPIKE_REASONS="${SPIKE_REASONS}CPU usage high (${CPU_USAGE}% > ${CPU_SPIKE_THRESHOLD}%); "
+    fi
+    
+    # Check temperature spike
+    if [ "$TEMP_C" -gt "$TEMP_SPIKE_THRESHOLD" ]; then
+        SPIKE_DETECTED=1
+        SPIKE_REASONS="${SPIKE_REASONS}High temperature (${TEMP_C}°C > ${TEMP_SPIKE_THRESHOLD}°C); "
+    fi
+    
+    # Check temperature increase
+    if [ "$PREV_TEMP" -gt 0 ]; then
+        TEMP_DIFF=$((TEMP_C - PREV_TEMP))
+        if [ "$TEMP_DIFF" -ge "$TEMP_INCREASE_THRESHOLD" ]; then
+            SPIKE_DETECTED=1
+            SPIKE_REASONS="${SPIKE_REASONS}Temperature jump (+${TEMP_DIFF}°C); "
+        fi
+    fi
+    
+    # Log spike if detected
+    if [ "$SPIKE_DETECTED" -eq 1 ]; then
+        SPIKE_COUNT=$((SPIKE_COUNT + 1))
+        
+        echo "╔═══════════════════════════════════════════════════════════════" >> "$SPIKE_LOG"
+        echo "║ SPIKE #${SPIKE_COUNT} DETECTED at ${TIMESTAMP_SAMPLE}" >> "$SPIKE_LOG"
+        echo "╠═══════════════════════════════════════════════════════════════" >> "$SPIKE_LOG"
+        echo "║ Reason: ${SPIKE_REASONS}" >> "$SPIKE_LOG"
+        echo "║ CPU Usage: ${CPU_USAGE}%" >> "$SPIKE_LOG"
+        echo "║ CPU Temp: ${TEMP_C}°C (Previous: ${PREV_TEMP}°C)" >> "$SPIKE_LOG"
+        
+        if [ ! -z "$FAN_INFO" ]; then
+            echo "║ Fan Status: ${FAN_INFO}" >> "$SPIKE_LOG"
+        fi
+        
+        echo "╠═══════════════════════════════════════════════════════════════" >> "$SPIKE_LOG"
+        echo "║ TOP CPU PROCESSES:" >> "$SPIKE_LOG"
+        echo "╠═══════════════════════════════════════════════════════════════" >> "$SPIKE_LOG"
+        echo "$TOP_PROCESSES" | while IFS= read -r line; do
+            echo "║ $line" >> "$SPIKE_LOG"
+        done
+        
+        if [ ! -z "$DOCKER_STATS" ]; then
+            echo "╠═══════════════════════════════════════════════════════════════" >> "$SPIKE_LOG"
+            echo "║ DOCKER CONTAINERS:" >> "$SPIKE_LOG"
+            echo "╠═══════════════════════════════════════════════════════════════" >> "$SPIKE_LOG"
+            echo "$DOCKER_STATS" | while IFS= read -r line; do
+                echo "║ $line" >> "$SPIKE_LOG"
+            done
+        fi
+        
+        echo "╚═══════════════════════════════════════════════════════════════" >> "$SPIKE_LOG"
+        echo "" >> "$SPIKE_LOG"
+        
+        printf "\r⚠ SPIKE #%d detected! " "$SPIKE_COUNT"
+    fi
+    
+    # Update baseline and previous values
+    PREV_TEMP=$TEMP_C
+    if [ "$SAMPLE" -le 10 ] && [ ! -z "$CPU_USAGE_INT" ]; then
+        BASELINE_CPU=$((BASELINE_CPU + CPU_USAGE_INT))
+        if [ "$SAMPLE" -eq 10 ]; then
+            BASELINE_CPU=$((BASELINE_CPU / 10))
+        fi
+    fi
+    
     # Progress indicator
     CURRENT_TIME=$(date +%s)
     ELAPSED=$((CURRENT_TIME - START_TIME))
     PROGRESS=$((ELAPSED * 100 / DURATION))
-    printf "\rProgress: %d%% (Sample #%d, %ds/%ds)    " "$PROGRESS" "$SAMPLE" "$ELAPSED" "$DURATION"
+    printf "\rProgress: %d%% (Sample #%d, %ds/%ds, Spikes: %d)    " "$PROGRESS" "$SAMPLE" "$ELAPSED" "$DURATION" "$SPIKE_COUNT"
     
     sleep 0.2
 done
 
 echo "" | tee -a "$LOG_FILE"
-echo "==================================" | tee -a "$LOG_FILE"
+echo "==================================" | tee -a "$LOG_FILE" | tee -a "$SPIKE_LOG"
-echo "Monitoring completed: $(date)" | tee -a "$LOG_FILE"
+echo "Monitoring completed: $(date)" | tee -a "$LOG_FILE" | tee -a "$SPIKE_LOG"
 echo "Total samples: ${SAMPLE}" | tee -a "$LOG_FILE"
-echo "Log saved to: $LOG_FILE" | tee -a "$LOG_FILE"
+echo "Total spikes detected: ${SPIKE_COUNT}" | tee -a "$LOG_FILE" | tee -a "$SPIKE_LOG"
-echo "==================================" | tee -a "$LOG_FILE"
+echo "Main log: $LOG_FILE" | tee -a "$LOG_FILE"
+echo "Spike log: $SPIKE_LOG" | tee -a "$LOG_FILE"
+echo "==================================" | tee -a "$LOG_FILE" | tee -a "$SPIKE_LOG"
 echo ""
-echo "To analyze the log, send the file to me or run:"
+echo "✓ Monitoring complete!"
-echo "  grep 'CPU Temp:' $LOG_FILE | sort -k3 -n | tail -10"
+echo "  📊 Full log: $LOG_FILE"
-echo "  grep 'CPU Usage:' $LOG_FILE | sort -k3 -n | tail -10"
+echo "  ⚠️  Spike log: $SPIKE_LOG"
+echo ""
+echo "Quick analysis commands:"
+echo "  cat $SPIKE_LOG | less"
+echo "  grep 'SPIKE #' $SPIKE_LOG"