Increase throughput by 256x

Example latency: 20ms Session: 6400MB/s Stream: 800MB/s Example latency: 250ms Session: 512MB/s Stream: 64MB/s
szmarczak · Apr 27, 2021 · 3ff05e9 · 3ff05e9
1 parent 72297e2
commit 3ff05e9
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/source/agent.js b/source/agent.js
@@ -176,7 +176,8 @@ class Agent extends EventEmitter {
 
 		// We don't support push streams by default.
 		this.settings = {
-			enablePush: false
+			enablePush: false,
+			initialWindowSize: 1024 * 1024 * 128 // 128MB, see /~https://github.com/nodejs/node/issues/38426
 		};
 
 		// Reusing TLS sessions increases performance.
@@ -530,6 +531,9 @@ class Agent extends EventEmitter {
 							return;
 						}
 
+						// See /~https://github.com/nodejs/node/issues/38426
+						session.setLocalWindowSize(1024 * 1024 * 16); // 16 MB
+
 						session[kOriginSet] = session.originSet || [];
 
 						if (session.socket.encrypted) {