roachtest: fix sumCounterIncreases

srosenberg · srosenberg · commit 2a0ff187deb3 · 2025-09-08T23:53:08.000-04:00
Fix a typo in `sumCounterIncreases`
which was previously overshooting, i.e.,
double counting.

Epic: none
Release note: None
diff --git a/pkg/cmd/roachtest/tests/ts_util.go b/pkg/cmd/roachtest/tests/ts_util.go
@@ -91,7 +91,7 @@ func sumCounterIncreases(dataPoints []tspb.TimeSeriesDatapoint) (sum float64) {
 			sum += dataPoints[i].Value
 			continue
 		}
-		sum += dataPoints[i].Value - dataPoints[0].Value
+		sum += dataPoints[i].Value - dataPoints[i-1].Value
 	}
 	return sum
 }

Original file line number	Diff line number	Diff line change
`@@ -91,7 +91,7 @@ func sumCounterIncreases(dataPoints []tspb.TimeSeriesDatapoint) (sum float64) {`
`91`	`91`	`sum += dataPoints[i].Value`
`92`	`92`	`continue`
`93`	`93`	`}`
`94`		`- sum += dataPoints[i].Value - dataPoints[0].Value`
	`94`	`+ sum += dataPoints[i].Value - dataPoints[i-1].Value`
`95`	`95`	`}`
`96`	`96`	`return sum`
`97`	`97`	`}`