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[Hgengine-cvs] SF.net SVN: hgengine:[765] Mercury2/src
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From: <axl...@us...> - 2010-11-13 21:42:31
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Revision: 765
http://hgengine.svn.sourceforge.net/hgengine/?rev=765&view=rev
Author: axlecrusher
Date: 2010-11-13 21:42:25 +0000 (Sat, 13 Nov 2010)
Log Message:
-----------
add benchmark so that we can keep track of tests that we do
Added Paths:
-----------
Mercury2/src/Benchmark.cpp
Mercury2/src/Benchmark.h
Added: Mercury2/src/Benchmark.cpp
===================================================================
--- Mercury2/src/Benchmark.cpp (rev 0)
+++ Mercury2/src/Benchmark.cpp 2010-11-13 21:42:25 UTC (rev 765)
@@ -0,0 +1,44 @@
+#include <Benchmark.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+void BenchmarkSSELoad()
+{
+ /*_mm_load_ps and _mm_loadu_ps seem to run at nearly the same speed
+ _mm_loadu_ps 5.886555ns vs _mm_load_ps 5.564690ns
+ */
+ MercuryTimer start;
+ const unsigned long c = 1024*1024*20;
+ FloatRow* d = new FloatRow[c];
+ //d = (FloatRow*)(((char*)d)+4);
+ printf("%d\n", ((unsigned long)d)%16);
+ __m128 pp;
+ unsigned long* idx = new unsigned long[c];
+ for (int x = 0; x<c;++x)
+ {
+ unsigned int r = (unsigned int)rand();
+ idx[c] = r%c;
+ }
+
+ double tu, ta;
+ tu = ta = 0;
+ for (int x = 0; x<10;++x)
+ {
+ start.Touch();
+ for (unsigned int i = 0; i < c;++i)
+ {
+ pp=_mm_loadu_ps(d[i]);
+ _mm_storeu_ps(d[i],pp);
+ }
+ tu += start.Touch()*1000000000; //to nano second
+ for (unsigned int i = 0; i < c;++i)
+ {
+ pp=_mm_load_ps(d[i]);
+ _mm_store_ps(d[i],pp);
+ }
+ ta += start.Touch()*1000000000; //to nano second
+ }
+ printf("loadu %f\n", tu/float(c)/10/2);
+ printf("load %f\n", ta/float(c)/10/2);
+ exit(0);
+}
\ No newline at end of file
Added: Mercury2/src/Benchmark.h
===================================================================
--- Mercury2/src/Benchmark.h (rev 0)
+++ Mercury2/src/Benchmark.h 2010-11-13 21:42:25 UTC (rev 765)
@@ -0,0 +1,41 @@
+#ifndef MBENCHMARK_H
+#define MBENCHMARK_H
+
+#include <MercuryTimer.h>
+#include <MercuryMath.h>
+
+void BenchmarkSSELoad();
+
+#endif
+
+/****************************************************************************
+ * Copyright (C) 2010 by Joshua Allen *
+ * *
+ * *
+ * All rights reserved. *
+ * *
+ * Redistribution and use in source and binary forms, with or without *
+ * modification, are permitted provided that the following conditions *
+ * are met: *
+ * * Redistributions of source code must retain the above copyright *
+ * notice, this list of conditions and the following disclaimer. *
+ * * Redistributions in binary form must reproduce the above *
+ * copyright notice, this list of conditions and the following *
+ * disclaimer in the documentation and/or other materials provided *
+ * with the distribution. *
+ * * Neither the name of the Mercury Engine nor the names of its *
+ * contributors may be used to endorse or promote products derived *
+ * from this software without specific prior written permission. *
+ * *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS *
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT *
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR *
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT *
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, *
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT *
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, *
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY *
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT *
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE *
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
+ ***************************************************************************/
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