Device telemetry for benchmark

Author: Guang Yang

extension/benchmark/android/benchmark/android-llm-device-farm-test-spec.yml.j2

@@ -105,6 +105,20 @@ phases:
           echo "*.model tokenizer files found in /data/local/tmp/minibench/"
         fi
 
+      - echo "Collect Device Telemetry CPU scaling configuration"
+      - |
+        adb -s $DEVICEFARM_DEVICE_UDID shell '
+          for core_path in /sys/devices/system/cpu/cpu*/cpufreq; do
+            if [ -d "$core_path" ]; then
+              core_name=$(basename $(dirname $core_path))
+              governor=$(cat $core_path/scaling_governor 2>/dev/null || echo "N/A")
+              min_freq=$(cat $core_path/scaling_min_freq 2>/dev/null || echo "N/A")
+              max_freq=$(cat $core_path/scaling_max_freq 2>/dev/null || echo "N/A")
+              echo "$core_name|$governor|$min_freq|$max_freq"
+            fi
+          done
+        ' > $DEVICEFARM_LOG_DIR/cpu_scaling_config.txt
+
       - echo "Collect device state before running"
       - |
         adb -s $DEVICEFARM_DEVICE_UDID shell 'cat /sys/devices/system/cpu/cpu*/cpufreq/stats/time_in_state /sys/devices/system/cpu/cpu*/cpufreq/stats/trans_table' > $DEVICEFARM_LOG_DIR/state_before.txt
@@ -132,7 +146,7 @@ phases:
           adb -s $DEVICEFARM_DEVICE_UDID shell am start -W -n org.pytorch.minibench/.BenchmarkActivity \
             --es "model_dir" "/data/local/tmp/minibench"
         fi
-        
+
       - echo "Collect device state after running"
       - |
         adb -s $DEVICEFARM_DEVICE_UDID shell 'cat /sys/devices/system/cpu/cpu*/cpufreq/stats/time_in_state /sys/devices/system/cpu/cpu*/cpufreq/stats/trans_table' > $DEVICEFARM_LOG_DIR/state_after.txt