From 6393f97bfb95e4c9817e7e5a04f88dfb947667fc Mon Sep 17 00:00:00 2001
From: Alex Hultman <alexhultman@gmail.com>
Date: Mon, 20 Sep 2021 19:10:43 +0200
Subject: [PATCH] Erase backpressure in steps of 1/32th

---
 src/AsyncSocketData.h | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/AsyncSocketData.h b/src/AsyncSocketData.h
index 94575d8..b72b2c1 100644
--- a/src/AsyncSocketData.h
+++ b/src/AsyncSocketData.h
@@ -22,9 +22,6 @@
 
 namespace uWS {
 
-/* We erase a minimum of 32kb off the front of the backpressure buffer when draining */
-const int BACKPRESSURE_MINIMAL_ERASE = 32 * 1024;
-
 struct BackPressure {
     std::string buffer;
     unsigned int pendingRemoval = 0;
@@ -38,7 +35,8 @@ struct BackPressure {
     }
     void erase(unsigned int length) {
         pendingRemoval += length;
-        if (pendingRemoval > BACKPRESSURE_MINIMAL_ERASE || !(buffer.length() - pendingRemoval)) {
+        /* Always erase a minimum of 1/32th the current backpressure */
+        if (pendingRemoval > (buffer.length() >> 5)) {
             buffer.erase(0, pendingRemoval);
             pendingRemoval = 0;
         }