sl@0: // Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of the License "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // e32test\bench\t_membm.cpp
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include <e32std.h>
sl@0: #include <e32std_private.h>
sl@0: #include <e32base.h>
sl@0: #include <e32base_private.h>
sl@0: #include <e32test.h>
sl@0: #include <e32svr.h>
sl@0: 
sl@0: #define ALIGN_UP(x, y) (TInt8*)(_ALIGN_UP((TInt)(x), (y)))
sl@0: #define ALIGN_DOWN(x, y) (TInt8*)(_ALIGN_DOWN((TInt)(x), (y)))
sl@0: 
sl@0: const TInt KHeapSize=720*1024;
sl@0: const TInt KAverageOverInMilliseconds=500;
sl@0: const TInt Len64K = 64*1024;
sl@0: 
sl@0: volatile TInt count;
sl@0: volatile TInt iters;
sl@0: 
sl@0: TInt8* trg;
sl@0: TInt8* src;
sl@0: TInt8* dummy;
sl@0: TInt8 trgoffset;
sl@0: TInt8 srcoffset;
sl@0: TInt len=64*1024;
sl@0: TInt64 result;
sl@0: 
sl@0: RTest test(_L("T_MEMBM"));
sl@0: 
sl@0: GLREF_C TInt MemBaseline(TAny*);
sl@0: GLREF_C TInt MemCopy(TAny*);
sl@0: GLREF_C TInt MemMove(TAny*);
sl@0: GLREF_C TInt MemFill(TAny*);
sl@0: GLREF_C TInt MemSwap(TAny*);
sl@0: GLREF_C TInt WordMove(TAny*);
sl@0: GLREF_C TInt MemCopyUncached(TAny*);
sl@0: GLREF_C TInt WordMoveUncached(TAny*);
sl@0: GLREF_C TInt MemFillUncached(TAny*);
sl@0: GLREF_C TInt PurgeCache();
sl@0: 
sl@0: TInt nextLen(TInt aTestLength)
sl@0: 	{
sl@0: 	if (len == Len64K)
sl@0: 		return 0;
sl@0: 	if (!aTestLength)
sl@0: 		return Len64K;
sl@0: 
sl@0: 	TInt inc = aTestLength;
sl@0: 	for (TInt i = len >> 5 ; i ; i >>= 1)
sl@0: 		inc <<= 1;
sl@0: 
sl@0: 	return len + inc;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0:  * Run benchmarks on the supplied function.
sl@0:  *
sl@0:  * @param aFunction			The function to benchmark
sl@0:  * @param aTestBackwards	Run copy tests with overlapping areas to test backwards copy
sl@0:  * @param aTestSrcAlign		Run tests for source alignments 0 - 31
sl@0:  * @param aTestDestAlign	Run tests for destination alignments 0 - 31
sl@0:  * @param aTestLength		If non-zero, run tests for different lengths starting at aTestLength
sl@0:  */
sl@0: TInt64 runTest(TThreadFunction aFunction,const TDesC& aTitle, TBool aTestBackwards, TBool aTestSrcAlign, TBool aTestDestAlign, TInt aTestLength)
sl@0:     {
sl@0: 	TInt8* buffer = (TInt8*)User::Alloc(640 * 1024 + 32);
sl@0: 	test(buffer != 0);
sl@0: 
sl@0: 	test(!(aTestLength && aTestBackwards)); // not supported
sl@0: 	
sl@0: 	TBool goingforward=ETrue;
sl@0: 
sl@0: 	FOREVER
sl@0: 		{
sl@0: 		if (aTestLength)
sl@0: 			test.Printf(_L("Running length experiment on %S.  Results follow:\n"), &aTitle);
sl@0: 		
sl@0: 		len = 0;
sl@0: 		while(len = nextLen(aTestLength), len)
sl@0: 			{
sl@0: 			src = ALIGN_UP(buffer, 32);
sl@0: 			if (goingforward)
sl@0: 				trg = src + 512 * 1024;					// blow half a meg
sl@0: 			else
sl@0: 				trg = ALIGN_DOWN(src + len - 1, 32);	// ensure overlapping, doesn't work for length < 32
sl@0: 
sl@0: 			if (aTestLength)
sl@0: 				test.Printf(_L("%d, "), len);
sl@0: 			else
sl@0: 				test.Printf(_L("Test array bases trg=0x%08x, src=0x%08x.  Running experiment on %S.  Results follow:\n"), trg, src, &aTitle);
sl@0: 			
sl@0: 			const TInt xsquare = aTestDestAlign ? 32 : 1;
sl@0: 			const TInt ysquare = aTestSrcAlign ? 32 : 1;
sl@0: 
sl@0: 			for (srcoffset = 0 ; srcoffset < ysquare ; srcoffset++)
sl@0: 				{
sl@0: 				for (trgoffset = 0 ; trgoffset < xsquare ; trgoffset++)
sl@0: 					{
sl@0: 					RThread thread;
sl@0: 					TInt r=thread.Create(aTitle,aFunction,KDefaultStackSize,KHeapSize,KHeapSize,NULL);
sl@0: 					if(r!=KErrNone)
sl@0: 						{
sl@0: 						test.Printf(_L("Failed to create thread with error %d\n"),r);
sl@0: 						return(r);
sl@0: 						}
sl@0: 					thread.SetPriority(EPriorityLess);
sl@0: 					thread.Resume();
sl@0: 					User::After(50000);  // 50 msec is more than enough in EKA2
sl@0: 					count=0;
sl@0: 					User::After(5000);   // even if the second reset fails, max inaccuracy is 5000 usecs
sl@0: 					count=0;			 // try and reduce the probability of failing to reset
sl@0: 					User::After(KAverageOverInMilliseconds*1000);
sl@0: 					result=count;
sl@0: 					thread.Kill(0);
sl@0: 					CLOSE_AND_WAIT(thread);
sl@0: 					PurgeCache();
sl@0: 
sl@0: 					result *= 1000;
sl@0: 					result /= KAverageOverInMilliseconds;
sl@0: 
sl@0: 					TInt s = I64INT(result);
sl@0: 					test.Printf(_L("%d, "),s);
sl@0: 					}
sl@0: 				test.Printf(_L("\n"));
sl@0: 				}
sl@0: 			}
sl@0: 
sl@0: 		if (aTestBackwards && goingforward)
sl@0: 			goingforward = EFalse;
sl@0: 		else
sl@0: 			break;
sl@0: 		}
sl@0: 	
sl@0: 	User::Free(buffer);
sl@0: 
sl@0: 	return(result);
sl@0:     }
sl@0: 
sl@0: enum TTestType
sl@0: 	{
sl@0: 	ENormalTests,
sl@0: 	EFullTests,
sl@0: 	ELengthTests,
sl@0: 	};
sl@0: 
sl@0: // Return whether we should run the full alignment benchmarks
sl@0: TTestType ParseCommandLine()
sl@0: 	{
sl@0: 	TBuf<32> args;
sl@0: 	User::CommandLine(args);
sl@0: 	
sl@0: 	if (args == _L("-f"))
sl@0: 		return EFullTests;
sl@0: 	else if (args == _L("-l"))
sl@0: 		return ELengthTests;
sl@0: 	else if (args != KNullDesC)
sl@0: 		{
sl@0: 		test.Printf(_L("usage: t_membm [OPTIONS]\n"));
sl@0: 		test.Printf(_L("  -f  Run full alignment benchmarks\n"));
sl@0: 		test.Printf(_L("  -l  Run memcpy length benchmarks\n"));
sl@0: 		test(EFalse);
sl@0: 		}
sl@0: 	
sl@0: 	return ENormalTests;
sl@0: 	}
sl@0: 
sl@0: TInt E32Main()
sl@0: //
sl@0: // Benchmark for Mem functions
sl@0: //
sl@0:     {
sl@0: 
sl@0:     test.Title();
sl@0:     test.Start(_L("Benchmarks for Mem functions"));
sl@0: 
sl@0: 	TTestType testType = ParseCommandLine();
sl@0: 
sl@0: 	switch (testType)
sl@0: 		{
sl@0: 		case ENormalTests:
sl@0: 		case EFullTests:
sl@0: 			{
sl@0: 			TBool srcAlign = testType == EFullTests;
sl@0: 			
sl@0: 			if (srcAlign)
sl@0: 				test.Printf(_L("Running full alignment benchmarks (may take a long time)\n"));
sl@0: 			else
sl@0: 				test.Printf(_L("Not testing source alignment (run with -f if you want this)\n"));
sl@0: 			
sl@0: 			runTest(MemBaseline,     _L("Processor baseline"),   EFalse, EFalse,   EFalse, 0);
sl@0: 			runTest(MemFill,	     _L("Memory fill"),		     EFalse, EFalse,   ETrue,  0);
sl@0: 			runTest(MemCopy,	     _L("Memory copy"),		     ETrue,  srcAlign, ETrue,  0);
sl@0: 			runTest(MemSwap,	     _L("Memory swap"),		     ETrue,  srcAlign, ETrue,  0);
sl@0: 			}
sl@0: 			break;
sl@0: 		case ELengthTests:
sl@0: 			test.Printf(_L("Running length benchmarks (may take a long time)\n"));
sl@0: 			runTest(MemFill,         _L("Fill length cached"),        EFalse,  EFalse,  EFalse, 1);
sl@0: 			runTest(MemFillUncached, _L("Fill length uncached"),      EFalse,  EFalse,  EFalse, 1);
sl@0: 			runTest(MemCopy,         _L("Copy length cached"),        EFalse,  EFalse,  EFalse, 1);
sl@0: 			runTest(MemCopyUncached, _L("Copy length uncached"),      EFalse,  EFalse,  EFalse, 1);
sl@0: 			runTest(WordMove,        _L("Word move length cached"),   EFalse,  EFalse,  EFalse, 4);
sl@0: 			runTest(WordMoveUncached,_L("Word move length uncached"), EFalse,  EFalse,  EFalse, 4);
sl@0: 			break;
sl@0: 		default:
sl@0: 			test(EFalse);
sl@0: 			break;
sl@0: 		}
sl@0: 
sl@0:     test.End();
sl@0: 	return(KErrNone);
sl@0:     }