* benchmark/bm_vm4_thread_create_join.rb,

benchmark/bm_vm4_thread_mutex[1-3].rb: renamed to
  bm_thread_* (fix last rename).



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32134 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

benchmark/bm_vm_thread_mutex1.rb

@@ -0,0 +1,21 @@
+# one thread, one mutex (no contention)
+
+require 'thread'
+m = Mutex.new
+r = 0
+max = 1000
+lmax = max * max
+(1..1).map{
+  Thread.new{
+    i=0
+    while i<lmax
+      i+=1
+      m.synchronize{
+        r += 1
+      }
+    end
+  }
+}.each{|e|
+  e.join
+}
+raise r.to_s if r != max * max