https://git.ruby-lang.org/ruby.git/commit/?id=216593f59b

From 216593f59b49fc7f59ed991ae3feaa1ad233ce75 Mon Sep 17 00:00:00 2001
From: Samuel Williams <samuel.williams@o...>
Date: Sun, 9 Jan 2022 19:46:42 +1300
Subject: Add IO write throughput/locking overhead benchmark.

---
 benchmark/io_write.rb | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 benchmark/io_write.rb

diff --git a/benchmark/io_write.rb b/benchmark/io_write.rb
new file mode 100644
index 0000000000..cdb409948b
--- /dev/null
+++ b/benchmark/io_write.rb
@@ -0,0 +1,22 @@ https://github.com/ruby/ruby/blob/trunk/benchmark/io_write.rb#L1
+#!/usr/bin/env ruby
+
+require 'benchmark'
+
+i, o = IO.pipe
+o.sync = true
+
+DOT = ".".freeze
+
+chunks = 100_000.times.collect{DOT}
+
+thread = Thread.new do
+  while i.read(1024)
+  end
+end
+
+100.times do
+  o.write(*chunks)
+end
+
+o.close
+thread.join
-- 
cgit v1.2.1


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