From 95113ad12f4aa34b6173019753fee335804fcbe1 Mon Sep 17 00:00:00 2001
From: fakeshadow <24548779@qq.com>
Date: Fri, 12 Feb 2021 12:33:13 -0800
Subject: [PATCH] do not self wake up when have a payload (#1984)

---
 actix-http/src/h1/dispatcher.rs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/actix-http/src/h1/dispatcher.rs b/actix-http/src/h1/dispatcher.rs
index e6533b7c..2e729b78 100644
--- a/actix-http/src/h1/dispatcher.rs
+++ b/actix-http/src/h1/dispatcher.rs
@@ -745,7 +745,12 @@ where
                             // at this point it's not known io is still scheduled to
                             // be waked up. so force wake up dispatcher just in case.
                             // TODO: figure out the overhead.
-                            cx.waker().wake_by_ref();
+                            if this.payload.is_none() {
+                                // When dispatcher has a payload. The responsibility of
+                                // wake up stream would be shift to PayloadSender.
+                                // Therefore no self wake up is needed.
+                                cx.waker().wake_by_ref();
+                            }
                             return Ok(false);
                         }