ProcessCumulative() function always calculates the average performance by dividing the count of performance record.

When the count is zero, it will report exception, so it needs to be enhanced to check the dividend.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11260 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 15 insertions, 13 deletions

diff --git a/PerformancePkg/Dp_App/DpTrace.c b/PerformancePkg/Dp_App/DpTrace.c
index b70e3a2..b60d7c9 100644
--- a/PerformancePkg/Dp_App/DpTrace.c
+++ b/PerformancePkg/Dp_App/DpTrace.c
@@ -723,19 +723,21 @@ ProcessCumulative(
   PrintToken (STRING_TOKEN (STR_DP_DASHES));

 

   for ( TIndex = 0; TIndex < NumCum; ++TIndex) {

-    AvgDur = DivU64x32 (CumData[TIndex].Duration, CumData[TIndex].Count);

-    AvgDur = DurationInMicroSeconds(AvgDur);

-    Dur    = DurationInMicroSeconds(CumData[TIndex].Duration);

-    MaxDur = DurationInMicroSeconds(CumData[TIndex].MaxDur);

-    MinDur = DurationInMicroSeconds(CumData[TIndex].MinDur);

+    if (CumData[TIndex].Count != 0) {

+      AvgDur = DivU64x32 (CumData[TIndex].Duration, CumData[TIndex].Count);

+      AvgDur = DurationInMicroSeconds(AvgDur);

+      Dur    = DurationInMicroSeconds(CumData[TIndex].Duration);

+      MaxDur = DurationInMicroSeconds(CumData[TIndex].MaxDur);

+      MinDur = DurationInMicroSeconds(CumData[TIndex].MinDur);

     

-    PrintToken (STRING_TOKEN (STR_DP_CUMULATIVE_STATS),

-                CumData[TIndex].Name,

-                CumData[TIndex].Count,

-                Dur,

-                AvgDur,

-                MinDur,

-                MaxDur

-               );

+      PrintToken (STRING_TOKEN (STR_DP_CUMULATIVE_STATS),

+                  CumData[TIndex].Name,

+                  CumData[TIndex].Count,

+                  Dur,

+                  AvgDur,

+                  MinDur,

+                  MaxDur

+                 );

+    }

   }

 }