mirror of
https://github.com/AlexMacocian/ServerManagementUtils.git
synced 2026-07-15 15:19:58 +00:00
Alexandru-Victor Macocian
123 lines
4.2 KiB
Bash
Executable File
123 lines
4.2 KiB
Bash
Executable File
#!/bin/bash
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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. "${SCRIPT_DIR}/../share/logging.sh"
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. "${SCRIPT_DIR}/../share/os-detection.sh"
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LOGFILE=/var/log/power_usage.log
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OS_TYPE=$(DetectOS)
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# Create log file with proper error handling
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if ! touch "$LOGFILE" 2>/dev/null; then
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LogError "Cannot create log file $LOGFILE"
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exit 1
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fi
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chmod 644 "$LOGFILE" 2>/dev/null
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# Check if bc is available
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if ! command -v bc >/dev/null 2>&1; then
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LogError "bc command not found. Please install bc:"
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if [[ "$OS_TYPE" == "macos" ]]; then
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LogError " macOS: brew install bc"
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else
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LogError " Ubuntu/Debian: sudo apt-get install bc"
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fi
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exit 1
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fi
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# Check power monitoring support
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if ! IsPowerMonitoringSupported; then
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if [[ "$OS_TYPE" == "macos" ]]; then
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LogError "powermetrics not available at /usr/bin/powermetrics"
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LogError "Power monitoring requires macOS with powermetrics support"
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else
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LogError "Intel RAPL interface not available"
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LogError "This may be due to:"
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LogError "1. Non-Intel CPU"
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LogError "2. RAPL not supported by kernel"
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LogError "3. Insufficient permissions"
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LogError "4. Module not loaded (try: sudo modprobe intel_rapl_common)"
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fi
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exit 1
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fi
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LogInformation "Starting power usage monitoring (OS: $OS_TYPE)"
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# Run 6 iterations with 10-second intervals = 60 seconds total (no gaps)
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for i in {1..6}; do
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timestamp=$(GetTimestamp)
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if [[ "$OS_TYPE" == "macos" ]]; then
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# Use powermetrics for macOS (requires sudo)
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# Sample for 1 second and extract CPU power
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power_data=$(sudo powermetrics -n 1 -i 1000 --samplers cpu_power 2>/dev/null | grep -i "power" | head -1)
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if [[ -n "$power_data" ]]; then
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# Try to extract power value in watts (format: "Intel energy model derived package power (CPUs+GT+SA): 4.55W")
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power_watts=$(echo "$power_data" | grep -oE '[0-9]+\.[0-9]+W' | grep -oE '[0-9]+\.[0-9]+')
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# If watts format not found, try milliwatts format (format: "CPU Power: 1234 mW")
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if [[ -z "$power_watts" ]]; then
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power_mw=$(echo "$power_data" | grep -oE '[0-9]+ mW' | grep -oE '[0-9]+')
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if [[ -n "$power_mw" ]]; then
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# Convert milliwatts to watts
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power_watts=$(echo "scale=6; $power_mw / 1000" | bc 2>/dev/null)
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fi
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fi
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if [[ -n "$power_watts" && $? -eq 0 ]]; then
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echo "$timestamp $power_watts" >> "$LOGFILE"
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LogInformation "Power usage recorded: ${power_watts}W (iteration $i/6)"
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else
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LogError "Failed to extract or calculate power value"
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fi
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else
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LogWarning "Could not retrieve power data from powermetrics"
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fi
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else
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# Linux RAPL interface
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RAPL_PATH="/sys/class/powercap/intel-rapl:0/energy_uj"
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# Read initial energy value
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if ! energy_1=$(cat "$RAPL_PATH" 2>/dev/null); then
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LogError "Failed to read energy value from $RAPL_PATH"
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exit 1
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fi
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sleep 1
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# Read second energy value
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if ! energy_2=$(cat "$RAPL_PATH" 2>/dev/null); then
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LogError "Failed to read energy value from $RAPL_PATH"
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exit 1
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fi
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energy_diff=$((energy_2 - energy_1))
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# Convert microjoules to joules (1 J = 1,000,000 µJ)
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energy_joules=$(echo "scale=6; $energy_diff / 1000000" | bc 2>/dev/null)
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if [[ $? -ne 0 ]]; then
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LogError "Failed to calculate energy in joules"
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continue
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fi
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# Since we waited 1 second, the power usage is simply the energy difference in joules (W)
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power_watts=$(echo "scale=6; $energy_joules / 1" | bc 2>/dev/null)
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if [[ $? -ne 0 ]]; then
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LogError "Failed to calculate power in watts"
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continue
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fi
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# Write power usage to log file
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echo "$timestamp $power_watts" >> "$LOGFILE"
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LogInformation "Power usage recorded: ${power_watts}W (iteration $i/6)"
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fi
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if [ $i -lt 6 ]; then
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sleep 10
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fi
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done
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LogInformation "Power usage monitoring completed" |