diff --git a/executor/inspection_result.go b/executor/inspection_result.go
index a1a5db2f7a..dc1e6208f2 100644
--- a/executor/inspection_result.go
+++ b/executor/inspection_result.go
@@ -682,11 +682,12 @@ func (c compareStoreStatus) genSQL(timeRange plannercore.QueryTimeRange) string
 		 t2.time>='%[1]s' and t2.time<='%[2]s'`, timeRange.From.Format(plannercore.MetricTableTimeFormat),
 		timeRange.To.Format(plannercore.MetricTableTimeFormat))
 	return fmt.Sprintf(`select t1.address,t1.value,t2.address,t2.value,
-				(t1.value-t2.value)/greatest(t1.value,t2.value) as ratio
+				(t1.value-t2.value)/t1.value as ratio
 				from metrics_schema.pd_scheduler_store_status t1 join metrics_schema.pd_scheduler_store_status t2
-				%s and t1.type='%s' and
+				%s and t1.type='%s' and t1.time = t2.time and
 				t1.type=t2.type and t1.address != t2.address and
-				(t1.value-t2.value)/t1.value>%v;`, condition, c.tp, c.threshold)
+				(t1.value-t2.value)/t1.value>%v group by t1.address,t1.value,t2.address,t2.value order by ratio desc`,
+		condition, c.tp, c.threshold)
 }
 
 func (c compareStoreStatus) genResult(_ string, row chunk.Row) inspectionResult {