本文共 3116 字，大约阅读时间需要 10 分钟。

1. GPU 相关参数目录

/d/ged/hal/

Z91:/d/ged/hal # ls -allls -alltotal 0drwxr-xr-x 2 root root 0 1970-01-01 08:00 .drwxr-xr-x 4 root root 0 1970-01-01 08:00 ..-r--r--r-- 1 root root 0 1970-01-01 08:00 current_freqency-rw-rw-rw- 1 root root 0 1970-01-01 08:00 custom_boost_gpu_freq-rw-rw-rw- 1 root root 0 1970-01-01 08:00 custom_dvfs_mode-rw-rw-rw- 1 root root 0 1970-01-01 08:00 custom_upbound_gpu_freq-rw-rw-rw- 1 root root 0 2018-02-07 09:48 event_notify-rw-rw-rw- 1 root root 0 1970-01-01 08:00 fps_upper_bound-r--r--r-- 1 root root 0 1970-01-01 08:00 ged_kpi-r--r--r-- 1 root root 0 1970-01-01 08:00 gpu_utilization-r--r--r-- 1 root root 0 1970-01-01 08:00 integration_report--w--w--w- 1 root root 0 1970-01-01 08:00 media_event-r--r--r-- 1 root root 0 1970-01-01 08:00 previous_freqency-r--r--r-- 1 root root 0 1970-01-01 08:00 total_gpu_freq_level_count-rw-rw-rw- 1 root root 0 2018-02-07 08:22 vsync_offset_level

1.1 /d/ged/hal/current_freqency

获取 GPU 频率

cat current_freqency3 290000

1.2 /d/ged/hal/custom_boost_gpu_freq

0

1.3 /d/ged/hal/custom_dvfs_mode

0

1.4 /d/ged/hal/custom_upbound_gpu_freq

3

1.5 /d/ged/hal/event_notify

cat event_notifyg_ui32EventStatus =0g_ui32EventDebugStatus =0Touch: 0WFD: 0MHL: 0GAS: 0VR: 0Thermal: 0Low power mode: 0MHL4K Video: 0Video merge MD: 0LCD: 0NETWORK: 0DOPT_WIFI_SCAN: 0

1.6 /d/ged/hal/fps_upper_bound

60

1.7 /d/ged/hal/ged_kpi

0,1521372427,96961,1550167888,17131845,28698500,290

1.8 /d/ged/hal/gpu_utilization

0 0 100

1.9 /d/ged/hal/integration_report

GPU Utilization fp: ffffff80085c1188GPU DVFS idx commit fp: ffffff80085c165cGPU clock notify on: 1GPU clock notify off: 1

1.10 /d/ged/hal/media_event

居然重启了，没查到什么东西

1.11 /d/ged/hal/previous_freqency

0 450000

1.12 /d/ged/hal/total_gpu_freq_level_count

获取系统有多少级 GPU 频率

4

1.13 /d/ged/hal/vsync_offset_level

8300000

2. GPU 频率获取

GpuUtils.java

package com.fadisu.cpurun.util;import com.fadisu.cpurun.bean.GpuFreqInfo;import java.io.BufferedReader;import java.io.FileNotFoundException;import java.io.FileReader;import java.io.IOException;public class GpuUtils {
       /**     * CPU 场景配置文件     *     * @return     */    public static GpuFreqInfo getGpuFreq() {        GpuFreqInfo result = new  GpuFreqInfo();        BufferedReader br = null;        try {            String line;            br = new BufferedReader(new FileReader("/d/ged/hal/current_freqency"));            if ((line = br.readLine()) != null) {                String[] info = line.split("\\s+");                result.id = Integer.parseInt(info[0]);                result.freq = Integer.parseInt(info[1]);            }            br.close();        } catch (FileNotFoundException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        } finally {            if (br != null) {                try {                    br.close();                } catch (IOException e) {                    e.printStackTrace();                }            }        }        return result;    }}

GpuFreqInfo.java

package com.fadisu.cpurun.bean;public class GpuFreqInfo {    public int id;    public int freq;}

3. GPU 频率获取 UI

4. 源码下载