From 21141cc83742c4b712561bc91de30816d028d3b8 Mon Sep 17 00:00:00 2001
From: Carl Mastrangelo <notcarl@google.com>
Date: Fri, 12 Apr 2019 12:42:18 -0700
Subject: [PATCH] netty: make default number of event loops defer to netty

---
 netty/src/main/java/io/grpc/netty/Utils.java | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/netty/src/main/java/io/grpc/netty/Utils.java b/netty/src/main/java/io/grpc/netty/Utils.java
index 6cb5b9f221..f0e59e108e 100644
--- a/netty/src/main/java/io/grpc/netty/Utils.java
+++ b/netty/src/main/java/io/grpc/netty/Utils.java
@@ -176,7 +176,7 @@ class Utils {
     return s;
   }
 
-  private static class DefaultEventLoopGroupResource implements Resource<EventLoopGroup> {
+  private static final class DefaultEventLoopGroupResource implements Resource<EventLoopGroup> {
     private final String name;
     private final int numEventLoops;
 
@@ -188,11 +188,8 @@ class Utils {
     @Override
     public EventLoopGroup create() {
       // Use Netty's DefaultThreadFactory in order to get the benefit of FastThreadLocal.
-      boolean useDaemonThreads = true;
-      ThreadFactory threadFactory = new DefaultThreadFactory(name, useDaemonThreads);
-      int parallelism = numEventLoops == 0
-          ? Runtime.getRuntime().availableProcessors() * 2 : numEventLoops;
-      return new NioEventLoopGroup(parallelism, threadFactory);
+      ThreadFactory threadFactory = new DefaultThreadFactory(name, /* daemon= */ true);
+      return new NioEventLoopGroup(numEventLoops, threadFactory);
     }
 
     @Override