os/kernelhwsrv/kerneltest/e32test/bench/t_t64bm.cpp
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution.
     1 // Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies).
     2 // All rights reserved.
     3 // This component and the accompanying materials are made available
     4 // under the terms of the License "Eclipse Public License v1.0"
     5 // which accompanies this distribution, and is available
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
     7 //
     8 // Initial Contributors:
     9 // Nokia Corporation - initial contribution.
    10 //
    11 // Contributors:
    12 //
    13 // Description:
    14 // e32test\bench\t_t64bm.cpp
    15 // 
    16 //
    17 
    18 #include <e32std.h>
    19 #include <e32std_private.h>
    20 #include <e32base.h>
    21 #include <e32base_private.h>
    22 #include <e32test.h>
    23 
    24 const TInt KHeapSize=0x2000;
    25 const TInt KAverageOverInSeconds=10;
    26 const TInt KNumberOfCalculationsPerLoop=100;
    27 
    28 volatile TInt64 count;
    29 volatile TInt64 a;
    30 volatile TInt64 b;
    31 volatile TInt64 c;
    32 volatile TInt64 barrier;
    33 
    34 RTest test(_L("T_T64BM"));
    35 
    36 GLREF_C TInt TInt64Addition(TAny*);
    37 GLREF_C TInt TInt64Subtraction(TAny*);
    38 GLREF_C TInt TInt64Multiplication(TAny*);
    39 GLREF_C TInt TInt64Division(TAny*);
    40 
    41 TInt64 runTest(TThreadFunction aFunction,const TDesC& aTitle)
    42     {
    43 
    44     RThread thread;
    45 	TInt r=thread.Create(aTitle,aFunction,KDefaultStackSize,KHeapSize,KHeapSize,NULL);
    46 	if(r!=KErrNone)
    47 		{
    48 		test.Printf(_L("Failed to create thread with error %d\n"),r);
    49 		return(r);
    50 		}
    51     thread.Resume();
    52     User::After(1000000);
    53     count=0;
    54     User::After(KAverageOverInSeconds*1000000);
    55     TInt64 result=count;
    56 
    57 	barrier = a;
    58 	if (!barrier)
    59 		barrier = c;
    60 	barrier = b;
    61 	if (!barrier)
    62 		barrier = a;
    63 	barrier = c;
    64 	if (!barrier)
    65 		barrier = b;
    66 
    67 	thread.Kill(0);
    68 	thread.Close();
    69 	result*=KNumberOfCalculationsPerLoop;
    70 	result/=KAverageOverInSeconds;
    71 	r=I64INT(result);
    72     test.Printf(_L("%S executed %d in 1 second\n"),&aTitle,r);
    73     return(result);
    74     }
    75 
    76 TInt E32Main()
    77 //
    78 // Benchmark for TInt64 functions
    79 //
    80     {
    81 
    82     test.Title();
    83     test.Start(_L("Benchmarks for TInt64"));
    84 
    85 	runTest(TInt64Addition,_L("Addition"));
    86 	runTest(TInt64Subtraction,_L("Subtraction"));
    87 	runTest(TInt64Multiplication,_L("Multiplication"));
    88 	runTest(TInt64Division,_L("Division"));
    89 
    90 	test.End();
    91 	return(KErrNone);
    92     }
    93