更新新版(基于PVTM的)CPU抽奖算法

Author: happyme531

bin/5bcli.dart

@@ -31,6 +31,8 @@ int main(List<String> arguments) {
   //获取体质抽奖结果
   var lotteryParser = ArgParser();
   parser.addCommand('lottery', lotteryParser);
+  lotteryParser.addFlag('list', abbr: 'l', negatable: false, help: '列出所有结果');
+  lotteryParser.addFlag('legacy', negatable: false, help: '使用旧版方式获取体质抽奖结果');
   lotteryParser.addFlag('help', abbr: 'h', negatable: false, help: '获取帮助');
 
   //读取输入电压
@@ -100,22 +102,68 @@ ${parser.usage}
         print(lotteryParser.usage);
         return 0;
       }
-      var frequencies = getFreqBigClustersMHz();
-      if (frequencies == null) {
-        print("获取cpu频率失败");
-        return 1;
-      }
       const Map<CpuLotteryResult, String> lotteryMap = {
         CpuLotteryResult.level1: "一等奖",
         CpuLotteryResult.level2: "二等奖",
         CpuLotteryResult.level3: "三等奖",
         CpuLotteryResult.levelWorst: "参与奖",
       };
-      var result0 = getCpuLotteryResult(frequencies[0]);
-      var result1 = getCpuLotteryResult(frequencies[1]);
 
-      print("第一组大核频率: ${frequencies[0]}MHz, 抽奖结果: ${lotteryMap[result0]}");
-      print("第二组大核频率: ${frequencies[1]}MHz, 抽奖结果: ${lotteryMap[result1]}");
+      if (results.command!['list']) {
+        print("所有体质抽奖结果:");
+        if (results.command!['legacy']) {
+          freq2LevelMap.forEach((key, value) {
+            print("频率近似值: $key, 结果: ${lotteryMap[value]}");
+          });
+        } else {
+          var lastValue = -1;
+          var lastResult = CpuLotteryResult.levelWorst;
+          pvtm2LevelMap.forEach((key, value) {
+            if (lastValue != -1) {
+              print(
+                  "PVTM值: $lastValue - ${key - 1}, 结果: ${lotteryMap[lastResult]}");
+            }
+            lastValue = key;
+            lastResult = value;
+          });
+        }
+        return 0;
+      }
+
+      if (results.command!['legacy']) {
+        var frequencies = getFreqBigClustersMHz();
+        if (frequencies == null) {
+          print("获取cpu频率失败");
+          return 1;
+        }
+
+        var result0 = getCpuLotteryResult(frequencies[0]);
+        var result1 = getCpuLotteryResult(frequencies[1]);
+
+        print("第一组大核频率: ${frequencies[0]}MHz, 抽奖结果: ${lotteryMap[result0]}");
+        print("第二组大核频率: ${frequencies[1]}MHz, 抽奖结果: ${lotteryMap[result1]}");
+        print("抽奖结果受温度影响, 可以在不同温度下多次测试以获得更准确的结果");
+        print("使用 --list 参数以列出所有可能结果");
+      } else {
+        try {
+          var pvtmValues = getPvtmBigClusters();
+          if (pvtmValues == null) {
+            print("获取pvtm失败");
+            return 1;
+          }
+
+          var result0 = getPvtmCpuLotteryResult(pvtmValues[0]);
+          var result1 = getPvtmCpuLotteryResult(pvtmValues[1]);
+
+          print("第一组大核pvtm值: ${pvtmValues[0]}, 抽奖结果: ${lotteryMap[result0]}");
+          print("第二组大核pvtm值: ${pvtmValues[1]}, 抽奖结果: ${lotteryMap[result1]}");
+          print("抽奖结果受温度影响, 可以在不同温度下多次测试以获得更准确的结果");
+          print("使用 --list 参数以列出所有可能结果");
+        } catch (e) {
+          print("体质抽奖失败: $e");
+        }
+      }
+
       break;
     case 'input_voltage':
       if (results.command!['help']) {

lib/cpu_lottery.dart

@@ -60,3 +60,48 @@ CpuLotteryResult getCpuLotteryResult(int freqMHz) {
   });
   return freq2LevelMap[minKey];
 }
+
+//
+const Map pvtm2LevelMap = {
+  0: CpuLotteryResult.levelWorst,
+  1616: CpuLotteryResult.level3,
+  1641: CpuLotteryResult.level2,
+  1676: CpuLotteryResult.levelWorst,
+  1711: CpuLotteryResult.level3,
+  1744: CpuLotteryResult.level2,
+  1777: CpuLotteryResult.level1,
+  9999: CpuLotteryResult.level1
+};
+
+///获取CPU大核PVTM值
+///目前只能通过读取内核日志来获取...
+List? getPvtmBigClusters() {
+  var dmesgProc = Process.runSync('dmesg', []);
+  if (dmesgProc.exitCode != 0) {
+    throw Exception('无法读取内核日志. 权限不足?');
+  }
+  //获取cpu4和cpu6(两组大核)的pvtm值
+  RegExp cpuPvtmRegExp = RegExp(r'cpu[4-6]: pvtm=([0-9]+)');
+  String kernelMsg = dmesgProc.stdout.toString();
+  var lines = kernelMsg.split('\n');
+  var pvtmList = <int>[];
+  for (var line in lines) {
+    var match = cpuPvtmRegExp.firstMatch(line);
+    if (match != null) {
+      var pvtm = int.parse(match.group(1)!);
+      pvtmList.add(pvtm);
+    }
+  }
+  return pvtmList;
+}
+
+///通过PVTM值判断体质
+CpuLotteryResult getPvtmCpuLotteryResult(int pvtmVal) {
+  CpuLotteryResult result = CpuLotteryResult.levelWorst;
+  pvtm2LevelMap.forEach((key, v) {
+    if (pvtmVal >= key) {
+      result = v;
+    }
+  });
+  return result;
+}

pubspec.yaml

@@ -1,6 +1,6 @@
 name: a5btool
 description: A tool for Rock 5B running Linux
-version: 1.1.0
+version: 1.2.0
 # homepage: https://www.example.com
 
 environment: