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prometheus-amdgpu-power.py

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+#!/usr/bin/env python3
+#coding: utf-8
+import requests, json, datetime
+from prometheus_client import start_http_server, Gauge, Summary, Info
+from time import sleep
+
+def gen_metrics():
+    '''
+    Generate empty metrics.
+    Return a list of metrics.
+    '''
+    metrics = [
+            Gauge('pwr', 'GPU power consumption in milliwatts'),
+            ]
+    return metrics
+
+
+
+def populate_metrics(stats, metrics):
+    '''
+    Take dict of stats and list of metrics (all summaries)
+    Populate the metrics with the stats
+    Return the metrics
+    '''
+    i = 0
+
+    for statname in stats:
+        statvalue = stats[statname]
+        for metric in metrics:
+            if statname == metric._name:
+                if isinstance(metric, Summary):
+                    metric.observe(statvalue)
+                elif isinstance(metric, Gauge):
+                    metric.set(statvalue)
+                elif isinstance(metric, Info):
+                    metric._value = statvalue
+
+    return metrics
+
+def get_power(stat):
+    '''
+    Get the gpu's power consumption from 
+    /sys/kernel/debug/dri/0/amdgpu_pm_info
+    and populate the metric
+    '''
+    from re import findall
+    with open('/sys/kernel/debug/dri/0/amdgpu_pm_info', 'r') as pminfo:
+        pminfo = pminfo.read()
+    wattage = pminfo.find('average')
+    if wattage != -1:
+        wattage = findall(r'\d{1,3}\.\d{1,2} W', pminfo)[0]
+        wattage = wattage.replace(" W", "")
+        wattage = int(float(wattage)) * 1000
+        stat.set(wattage)
+    return stat
+
+def main():
+
+    wattage = gen_metrics()[0]
+    wattage = get_power(wattage)
+
+    start_http_server(8064)
+    print("Started http server on port 8002")
+    while True:
+        wattage = get_power(wattage)
+        #metrics = populate_metrics(stats, gen_metrics())
+        sleep(2)
+
+if __name__ == '__main__':
+    main()
+

prometheus-amdgpu-power.service

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+[Unit]
+Description=prometheus-amdgpu-power exporter
+
+[Service]
+User=root
+ExecStart=/usr/bin/prometheus-amdgpu-power 
+Restart=on-failure
+
+[Install]
+WantedBy=multi-user.target