preallocate kline window with capacity

rahulmr · Nov 21, 2021 · 20f0e8d · 20f0e8d
1 parent 540722e
commit 20f0e8d
Showing 1 changed file with 2 additions and 3 deletions.
diff --git a/pkg/bbgo/marketdatastore.go b/pkg/bbgo/marketdatastore.go
@@ -50,10 +50,9 @@ func (store *MarketDataStore) handleKLineClosed(kline types.KLine) {
 func (store *MarketDataStore) AddKLine(kline types.KLine) {
 	window, ok := store.KLineWindows[kline.Interval]
 	if !ok {
-		window = types.KLineWindow{kline}
-	} else {
-		window.Add(kline)
+		window = make(types.KLineWindow, 0, 1000)
 	}
+	window.Add(kline)
 
 	if len(window) > MaxNumOfKLines {
 		window = window[MaxNumOfKLinesTruncate-1:]