Variables: enhance tidb_enable_gc_tuner (#40850)

close #40849
pingcap · Jan 30, 2023 · ee758bc · ee758bc
1 parent 91686a3
commit ee758bc
Showing 1 changed file with 6 additions and 3 deletions.
diff --git a/util/gctuner/tuner.go b/util/gctuner/tuner.go
@@ -144,15 +144,18 @@ func (t *tuner) getGCPercent() uint32 {
 // tuning check the memory inuse and tune GC percent dynamically.
 // Go runtime ensure that it will be called serially.
 func (t *tuner) tuning() {
+	if !EnableGOGCTuner.Load() {
+		return
+	}
+
 	inuse := readMemoryInuse()
 	threshold := t.getThreshold()
 	// stop gc tuning
 	if threshold <= 0 {
 		return
 	}
-	if EnableGOGCTuner.Load() {
-		t.setGCPercent(calcGCPercent(inuse, threshold))
-	}
+
+	t.setGCPercent(calcGCPercent(inuse, threshold))
 }
 
 // threshold = inuse + inuse * (gcPercent / 100)