sl@0: // Copyright (c) 1995-2009 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_kernbm.cpp
sl@0: // Overview:
sl@0: // Benchmark the performance of some kernel functions including RTimer
sl@0: // and RThread. Calculation time required for creation & closing of
sl@0: // timer objects, suspension of threads, handling kernel messages, and 
sl@0: // the number of threads created and stopped within a fixed time period.
sl@0: // API Information:
sl@0: // RTimer, RThread.
sl@0: // Details:
sl@0: // - Calculate and display the time required to create and close 1000 
sl@0: // thread-relative timer objects.
sl@0: // - Count and print the time taken to suspend the thread for 100000 times.
sl@0: // - Count and display the time consumed for 100000 kernel messages.
sl@0: // - Get and print the number of threads created and stopped within a 
sl@0: // specified timeframe, verify the ExitType, and ExitReason of the threads.
sl@0: // Platforms/Drives/Compatibility:
sl@0: // All.
sl@0: // Assumptions/Requirement/Pre-requisites:
sl@0: // Failures and causes:
sl@0: // Base Port information:
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include <e32test.h>
sl@0: 
sl@0: #define	TIMECOUNT()	User::NTickCount()
sl@0: #define TIMEDIFFMS(i,f)	(f-i)
sl@0: 
sl@0: LOCAL_D RTest test(_L("T_KERNBM"));
sl@0: volatile TInt Count;
sl@0: volatile TBool Stop;
sl@0: 
sl@0: #ifdef __EPOC32__
sl@0: extern void DummyKernMsg();
sl@0: #else
sl@0: void DummyKernMsg()
sl@0: 	{}
sl@0: #endif
sl@0: 
sl@0: LOCAL_C TInt ThreadFunction(TAny*)
sl@0: 	{
sl@0: 	User::WaitForAnyRequest();
sl@0: 	return 0;
sl@0: 	}
sl@0: 
sl@0: TInt TestThread(TAny*)
sl@0: 	{
sl@0: 	return 0;
sl@0: 	}
sl@0: 
sl@0: TInt TestThreadCreate(TAny*)
sl@0: 	{
sl@0: 	RThread t;
sl@0: 	t.SetPriority(EPriorityAbsoluteVeryLow);
sl@0: 	while (!Stop)
sl@0: 		{
sl@0: 		t.Create(KNullDesC,TestThread,4096,NULL,NULL);
sl@0: 		t.Resume();
sl@0: 		t.Close();
sl@0: 		++Count;
sl@0: 		}
sl@0: 	return 0;
sl@0: 	}
sl@0: 
sl@0: GLDEF_C TInt E32Main()
sl@0: 	{
sl@0: 	test.Title();
sl@0: 	test.Start(_L("Start...\n"));
sl@0: 
sl@0: 	RTimer t;
sl@0: 	TInt i;
sl@0: 	TInt r;
sl@0: 	TUint32 c1=TIMECOUNT();
sl@0: 	for (i=0; i<1000; i++)
sl@0: 		{
sl@0: 		r=t.CreateLocal();
sl@0: 		if (r!=KErrNone)
sl@0: 			test(0);
sl@0: 		t.Close();
sl@0: 		}
sl@0: 	TUint32 c2=TIMECOUNT();
sl@0: 	test.Printf(_L("Create and close 1000 timers takes %d ms\n"),TIMEDIFFMS(c1,c2));
sl@0: 
sl@0: 	RThread thrd;
sl@0: 	r=thrd.Create(_L("DodgyThread"),ThreadFunction,4096,1024,8192,NULL);
sl@0: 	test(r==KErrNone);
sl@0: 	test.Printf(_L("DodgyThread created\n"));
sl@0: 	thrd.SetPriority(EPriorityMore);
sl@0: 	thrd.Resume();
sl@0: 	test.Printf(_L("DodgyThread resumed\n"));
sl@0: 	c1=TIMECOUNT();
sl@0: 	for (i=0; i<100000; i++)
sl@0: 		{
sl@0: 		thrd.Suspend();
sl@0: 		}
sl@0: 	c2=TIMECOUNT();
sl@0: 	test.Printf(_L("Suspend 100000 times takes %d ms\n"),TIMEDIFFMS(c1,c2));
sl@0: 	thrd.Kill(0);
sl@0: 	thrd.Close();
sl@0: 	test.Printf(_L("DodgyThread killed\n"));
sl@0: 
sl@0: 	c1=TIMECOUNT();
sl@0: 	for (i=0; i<100000; i++)
sl@0: 		{
sl@0: 		DummyKernMsg();
sl@0: 		}
sl@0: 	c2=TIMECOUNT();
sl@0: 	test.Printf(_L("100000 kernel messages take %d ms\n"),TIMEDIFFMS(c1,c2));
sl@0: 
sl@0: 	test.Next(_L("Create thread test"));
sl@0: 	r=thrd.Create(_L("Creator"),TestThreadCreate,4096,NULL,NULL);
sl@0: 	test(r==KErrNone);
sl@0: 	thrd.SetPriority(EPriorityLess);
sl@0: 	RThread().SetPriority(EPriorityMuchMore);
sl@0: 	TRequestStatus s;
sl@0: 	thrd.Logon(s);
sl@0: 	thrd.Resume();
sl@0: 	Count=0;
sl@0: 	Stop=EFalse;
sl@0: 	c1=TIMECOUNT();
sl@0: 	User::After(1000000);
sl@0: 	Stop=ETrue;
sl@0: 	User::WaitForRequest(s);
sl@0: 	c2=TIMECOUNT();
sl@0: 	test(thrd.ExitType()==EExitKill);
sl@0: 	test(thrd.ExitReason()==0);
sl@0: 	thrd.Close();
sl@0: 	test.Printf(_L("%d threads created and stopped in %dms\n"),Count,TIMEDIFFMS(c1,c2));
sl@0: 
sl@0: 	test.End();
sl@0: 	return 0;
sl@0: 	}
sl@0: