diff --git a/lib/rb/benchmark/client.rb b/lib/rb/benchmark/client.rb
new file mode 100644
index 0000000..e8d3351
--- /dev/null
+++ b/lib/rb/benchmark/client.rb
@@ -0,0 +1,41 @@
+$:.unshift File.dirname(__FILE__) + '/../lib'
+require 'thrift'
+require 'thrift/server/nonblockingserver'
+$:.unshift File.dirname(__FILE__) + "/gen-rb"
+require 'BenchmarkService'
+
+class Client
+  def initialize(host, port, clients_per_process, calls_per_client)
+    @host = host
+    @port = port
+    @clients_per_process = clients_per_process
+    @calls_per_client = calls_per_client
+  end
+
+  def run
+    @clients_per_process.times do
+      socket = Thrift::Socket.new(@host, @port)
+      transport = Thrift::FramedTransport.new(socket)
+      protocol = Thrift::BinaryProtocol.new(transport)
+      client = ThriftBenchmark::BenchmarkService::Client.new(protocol)
+      begin
+        transport.open
+      rescue
+        Marshal.dump [:connection_failure, Time.now], STDOUT
+      else
+        Marshal.dump [:start, Time.now], STDOUT
+        @calls_per_client.times do
+          Marshal.dump [:call_start, Time.now], STDOUT
+          client.fibonacci(15)
+          Marshal.dump [:call_end, Time.now], STDOUT
+        end
+        transport.close
+        Marshal.dump [:end, Time.now], STDOUT
+      end
+    end
+  end
+end
+
+host, port, clients_per_process, calls_per_client = ARGV
+
+Client.new(host, port.to_i, clients_per_process.to_i, calls_per_client.to_i).run