From 32546e22828e793e3881e1055acb72b6a044e331 Mon Sep 17 00:00:00 2001
From: Rat <none@none>
Date: Mon, 7 Jun 2010 19:10:55 +0200
Subject: added ace + vcproj for win

--HG--
branch : trunk
---
 externals/ace/Throughput_Stats.h | 86 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 externals/ace/Throughput_Stats.h

(limited to 'externals/ace/Throughput_Stats.h')

diff --git a/externals/ace/Throughput_Stats.h b/externals/ace/Throughput_Stats.h
new file mode 100644
index 00000000000..c306c856c5e
--- /dev/null
+++ b/externals/ace/Throughput_Stats.h
@@ -0,0 +1,86 @@
+// -*- C++ -*-
+
+//==========================================================================
+/**
+ *  @file    Throughput_Stats.h
+ *
+ *  $Id: Throughput_Stats.h 80826 2008-03-04 14:51:23Z wotte $
+ *
+ *  @author David L. Levine
+ */
+//==========================================================================
+
+
+#ifndef ACE_THROUGHPUT_STATS_H
+#define ACE_THROUGHPUT_STATS_H
+
+#include /**/ "ace/pre.h"
+
+#include /**/ "ace/ACE_export.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+#include "ace/Basic_Stats.h"
+
+ACE_BEGIN_VERSIONED_NAMESPACE_DECL
+
+/// A simple class to make throughput and latency analysis.
+/**
+ *
+ * Keep the relevant information to perform throughput and latency
+ * analysis, including:
+ * -# Minimum, Average and Maximum latency
+ * -# Jitter for the latency
+ * -# Linear regression for throughput
+ * -# Accumulate results from several samples to obtain aggregated
+ *    results, across several threads or experiments.
+ *
+ * @todo The idea behind this class was to use linear regression to
+ *       determine if the throughput was linear or exhibited jitter.
+ *       Unfortunately it never worked quite right, so only average
+ *       throughput is computed.
+ */
+class ACE_Export ACE_Throughput_Stats : public ACE_Basic_Stats
+{
+public:
+  /// Constructor
+  ACE_Throughput_Stats (void);
+
+  /// Store one sample
+  void sample (ACE_UINT64 throughput, ACE_UINT64 latency);
+
+  /// Update the values to reflect the stats in @a throughput
+  void accumulate (const ACE_Throughput_Stats &throughput);
+
+  /// Print down the stats
+  void dump_results (const ACE_TCHAR* msg, ACE_UINT32 scale_factor);
+
+  /// Dump the average throughput stats.
+  static void dump_throughput (const ACE_TCHAR *msg,
+                               ACE_UINT32 scale_factor,
+                               ACE_UINT64 elapsed_time,
+                               ACE_UINT32 samples_count);
+private:
+  /// The last throughput measurement.
+  ACE_UINT64 throughput_last_;
+
+#if 0
+  /// These are the fields that we should keep to perform linear
+  /// regression
+  //@{
+  ///@}
+  ACE_UINT64 throughput_sum_x_;
+  ACE_UINT64 throughput_sum_x2_;
+  ACE_UINT64 throughput_sum_y_;
+  ACE_UINT64 throughput_sum_y2_;
+  ACE_UINT64 throughput_sum_xy_;
+#endif /* 0 */
+};
+
+ACE_END_VERSIONED_NAMESPACE_DECL
+
+#include /**/ "ace/post.h"
+
+#endif /* ! ACE_THROUGHPUT_STATS_H */
-- 
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