ci: adds truncation in percentage difference to reduce noise

baywet · baywet · commit 562b4a388b6b · 2025-04-08T14:06:48.000-04:00
Signed-off-by: Vincent Biret &lt;vibiret@microsoft.com&gt;
diff --git a/performance/resultsComparer/policies/PercentageMemoryUsagePolicy.cs b/performance/resultsComparer/policies/PercentageMemoryUsagePolicy.cs
@@ -49,7 +49,7 @@ public override bool Equals(BenchmarkMemory? x, BenchmarkMemory? y)
     }
     private static double GetPercentageDifference(BenchmarkMemory x, BenchmarkMemory y)
     {
-        return Math.Abs(GetAbsoluteRatio(x, y)) * 100;
+        return Math.Truncate(Math.Abs(GetAbsoluteRatio(x, y)) * 10000) / 100;
     }
     private static double GetAbsoluteRatio(BenchmarkMemory x, BenchmarkMemory y)
     {

Original file line number	Diff line number	Diff line change
`@@ -49,7 +49,7 @@ public override bool Equals(BenchmarkMemory? x, BenchmarkMemory? y)`
`49`	`49`	`}`
`50`	`50`	`private static double GetPercentageDifference(BenchmarkMemory x, BenchmarkMemory y)`
`51`	`51`	`{`
`52`		`- return Math.Abs(GetAbsoluteRatio(x, y)) * 100;`
	`52`	`+ return Math.Truncate(Math.Abs(GetAbsoluteRatio(x, y)) * 10000) / 100;`
`53`	`53`	`}`
`54`	`54`	`private static double GetAbsoluteRatio(BenchmarkMemory x, BenchmarkMemory y)`
`55`	`55`	`{`