From e9c69b3c40eaf7434af3446d10ced7a87dfc858c Mon Sep 17 00:00:00 2001
From: Valeri Karpov <val@karpov.io>
Date: Sat, 9 Nov 2019 14:40:48 -0500
Subject: [PATCH] perf(cursor): remove unnecessary `setTimeout()` in
 `eachAsync()`, 4x speedup in basic benchmarks

Fix #8310
---
 lib/helpers/cursor/eachAsync.js | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/lib/helpers/cursor/eachAsync.js b/lib/helpers/cursor/eachAsync.js
index 472dbeee187..95a38dbf93a 100644
--- a/lib/helpers/cursor/eachAsync.js
+++ b/lib/helpers/cursor/eachAsync.js
@@ -99,13 +99,11 @@ function asyncQueue() {
   };
 
   function _step() {
-    setTimeout(() => {
-      inProgress = null;
-      if (_queue.length > 0) {
-        inProgress = id++;
-        const fn = _queue.shift();
-        fn(_step);
-      }
-    }, 0);
+    inProgress = null;
+    if (_queue.length > 0) {
+      inProgress = id++;
+      const fn = _queue.shift();
+      fn(_step);
+    }
   }
 }
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