From 48851bffc97b031cb8f5a381123945a2dc3bb098 Mon Sep 17 00:00:00 2001
From: SlaneYang <slaneyang@gmail.com>
Date: Wed, 7 Nov 2018 11:55:12 +0800
Subject: [PATCH 1/2] perf(queue): Use shift instead of splice (when possible)
 in queue

---
 lib/async.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/async.js b/lib/async.js
index cfb3691c..976dbf3d 100644
--- a/lib/async.js
+++ b/lib/async.js
@@ -8065,7 +8065,11 @@
           task = tasks[taskIndex];
           while (++index < size) {
             if (workersList[index] === task) {
-              workersList.splice(index, 1);
+              if (index === 0) {
+                workersList.shift();
+              } else if (index > 0) {
+                workersList.splice(index, 1);
+              }
               index = size;
               size--;
             }

From 5f69b4d2e114bb3ffa0a665ce5c474dc0953ad81 Mon Sep 17 00:00:00 2001
From: SlaneYang <slaneyang@gmail.com>
Date: Wed, 7 Nov 2018 15:09:33 +0800
Subject: [PATCH 2/2] perf(queue): Use shift instead of splice (when possible)
 in queue

---
 lib/async.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/async.js b/lib/async.js
index 976dbf3d..59384335 100644
--- a/lib/async.js
+++ b/lib/async.js
@@ -8067,7 +8067,7 @@
             if (workersList[index] === task) {
               if (index === 0) {
                 workersList.shift();
-              } else if (index > 0) {
+              } else {
                 workersList.splice(index, 1);
               }
               index = size;