Changeset 82 for trunk/MacFaceLibrary/CPUStatisticsGetSystemTime.cs

Timestamp:

Jul 22, 2006, 12:00:26 AM (18 years ago)

Author:

rryu

Message:

CPU利用率の計算方法が間違っていたのを修正した。

File:

• trunk/MacFaceLibrary/CPUStatisticsGetSystemTime.cs (modified) (2 diffs)

trunk/MacFaceLibrary/CPUStatisticsGetSystemTime.cs

@@ -31 +31 @@
                         Int32 userTimeDiff = (Int32)(userTime - userTimePrev);
                         Int32 kernelTimeDiff = (Int32)(kernelTime - kernelTimePrev);
-                        Int32 systemTimeDiff = (Int32)(userTimeDiff + kernelTimeDiff);
+
+                        Int32 total = userTimeDiff + kernelTimeDiff;
+                        Int32 sys   = kernelTimeDiff - idleTimeDiff;
 
                         idleTimePrev = idleTime;
@@ -38 +40 @@
 
                         return new CPUUsage(
-                                (Int32)(100 - ((Double)idleTimeDiff / userTimePrev) * 100),
-                                (Int32)(100 - ((Double)idleTimeDiff / kernelTimePrev) * 100),
-                                (Int32)(((Double)idleTimeDiff / (systemTimeDiff)) * 100)
+                                (userTimeDiff * 100) / total,
+                                (sys * 100) / total,
+                                (idleTimeDiff * 100) / total
                         );
                 }