From f14b7d53a3a7dd193987a80ce09a688a35277376 Mon Sep 17 00:00:00 2001
From: Zlatin Balevsky <zlatinb@gmail.com>
Date: Fri, 17 Sep 2021 17:32:37 +0100
Subject: [PATCH] reduce the delay in ACKs to the minimum of rtt/2 and the
 constant

---
 router/java/src/net/i2p/router/transport/udp/ACKSender.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/router/java/src/net/i2p/router/transport/udp/ACKSender.java b/router/java/src/net/i2p/router/transport/udp/ACKSender.java
index 62e1e0d60..8d806f74d 100644
--- a/router/java/src/net/i2p/router/transport/udp/ACKSender.java
+++ b/router/java/src/net/i2p/router/transport/udp/ACKSender.java
@@ -78,7 +78,7 @@ class ACKSender implements Runnable {
         // the unsentACKThreshold to figure out when to send an ACK instead of
         // using the timer, so we can set the timeout/frequency higher
         if (timeSinceACK < 2*1000)
-            return Math.max(rtt/2, ACK_FREQUENCY);
+            return Math.min(rtt/2, ACK_FREQUENCY);
         else
             return ACK_FREQUENCY;
     }