From 7ef49716d595d848741ab517485f2a6fed03becc Mon Sep 17 00:00:00 2001
From: normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 2 May 2017 02:40:46 +0000
Subject: more benchmarks for SizedQueue and ConditionVariable

I'm working on patches to improve everything in thread_sync.c,
add these to track progress.

* benchmark/bm_vm_thread_sized_queue.rb: add description
* benchmark/bm_vm_thread_condvar1.rb: new benchmark
* benchmark/bm_vm_thread_condvar2.rb: ditto
* benchmark/bm_vm_thread_sized_queue2.rb: ditto
* benchmark/bm_vm_thread_sized_queue3.rb: ditto
* benchmark/bm_vm_thread_sized_queue4.rb: ditto

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58535 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 benchmark/bm_vm_thread_condvar1.rb | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 benchmark/bm_vm_thread_condvar1.rb

(limited to 'benchmark/bm_vm_thread_condvar1.rb')

diff --git a/benchmark/bm_vm_thread_condvar1.rb b/benchmark/bm_vm_thread_condvar1.rb
new file mode 100644
index 0000000000..cf5706b23e
--- /dev/null
+++ b/benchmark/bm_vm_thread_condvar1.rb
@@ -0,0 +1,28 @@
+# two threads, two mutex, two condvar ping-pong
+require 'thread'
+m1 = Mutex.new
+m2 = Mutex.new
+cv1 = ConditionVariable.new
+cv2 = ConditionVariable.new
+max = 100000
+i = 0
+wait = nil
+m2.synchronize do
+  wait = Thread.new do
+    m1.synchronize do
+      m2.synchronize { cv2.signal }
+      while (i += 1) < max
+        cv1.wait(m1)
+        cv2.signal
+      end
+    end
+  end
+  cv2.wait(m2)
+end
+m1.synchronize do
+  while i < max
+    cv1.signal
+    cv2.wait(m1)
+  end
+end
+wait.join
-- 
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