add more bitswap task workers

exchange/bitswap/workers.go

@@ -9,16 +9,20 @@ import (
 	u "github.com/ipfs/go-ipfs/util"
 )
 
+var TaskWorkerCount = 4
+
 func (bs *Bitswap) startWorkers(px process.Process, ctx context.Context) {
 	// Start up a worker to handle block requests this node is making
 	px.Go(func(px process.Process) {
 		bs.clientWorker(ctx)
 	})
 
-	// Start up a worker to handle requests from other nodes for the data on this node
-	px.Go(func(px process.Process) {
-		bs.taskWorker(ctx)
-	})
+	// Start up workers to handle requests from other nodes for the data on this node
+	for i := 0; i < TaskWorkerCount; i++ {
+		px.Go(func(px process.Process) {
+			bs.taskWorker(ctx)
+		})
+	}
 
 	// Start up a worker to manage periodically resending our wantlist out to peers
 	px.Go(func(px process.Process) {