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// Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the License "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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//
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#if !defined(__BM_SUITE_H__)
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#define __BM_SUITE_H__
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#include <e32test.h>
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#include "d32bm.h"
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/**
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* Gets access to the benchmark suite global log window/file.
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*/
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extern RTest test;
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/**
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* Tests for an error condition.
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*
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* If the error condition is detected the macro prints out the file name, the line number and
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* the error code, and aborts the benchmark suite.
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*
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* @param aError an error number; printed out in the case if the error condition is detected.
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* @param aCond non-error condition: if 1 - no errors; if 0 - error.
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*/
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#define BM_ERROR(aError, aCond) \
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__ASSERT_ALWAYS(aCond, bm_error_detected((TInt) aError, "'"#aCond"'", __FILE__, __LINE__))
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void bm_error_detected(TInt aError, char* aCond, char* aFile, TInt aLine);
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/**
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* Verify a condition
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*
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* If the value of condition is 0 prints out the file name, the line number and
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* aborts the benchmark suite.
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*
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* @param aCond the condition that shell be verified.
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*/
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#define BM_ASSERT(aCond) \
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__ASSERT_DEBUG(aCond, bm_assert_failed("'"#aCond"'", __FILE__, __LINE__))
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void bm_assert_failed(char* aFile, char* aCond, TInt aLine);
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/**
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* An object of <code>TBMResult</code> class collects results of a measurement of a single perfrormance characteristic.
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*
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* Objects of <code>TBMResult</code> class are typically reside in benchmark programs' static data
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* and returned as programs' results.
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*/
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class TBMResult
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{
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public:
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/**
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* Constructs a non-initialized <code>TBMResult</code> object.
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* Such a non-intialised object must be reset using void <code>TBMResult::Reset(const TDesC&)</code> function
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* prior to be actually used.
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*/
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TBMResult() {}
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/**
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* Constructs a <code>TBMResult</code> object.
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*
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* @param aName the measurement tite.
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*/
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TBMResult(const TDesC& aName);
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/**
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* Resets an existing <code>TBMResult</code> object.
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* Sets the object in exactly the same state as <code>TBMResult::TBMResult(const TDesC&)</code>.
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*
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* @param aName the measurement tite.
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*/
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void Reset(const TDesC& aName);
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/**
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* Stores the result of a new iteration.
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*
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* @param aTicks the iteration's elapsed time in ticks.
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*/
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void Cumulate(TBMTicks aTicks);
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/**
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* Stores the cumulated result of a number of iterations.
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*
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* @param aTicks the cumulated elapsed time
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* @param aIter the number of iterations.
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*/
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void Cumulate(TBMTicks aTicks, TBMUInt64 aIter);
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/**
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* Calculate <code>TBMResult::iMin, TBMResult::iMax, TBMResult::iAverage</code> in nano-seconds
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*/
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void Update();
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/**
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* The title of the performance measurement
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*/
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TPtrC iName;
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/**
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* The number of iteration has been performed
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*/
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TBMUInt64 iIterations;
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/**
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* The minimal elapsed time in nano-seconds.
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*/
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TBMNs iMin;
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/**
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* The maximal elapsed time in nano-seconds
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*/
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TBMNs iMax;
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/**
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* The average elapsed time in nano-seconds.
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*/
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TBMNs iAverage;
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enum
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{
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/**
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* The size of the buffer for the results of leading iterations
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*/
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KHeadSize = 4
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};
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enum
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{
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/**
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* The size of the buffer for the results of tailing iterations
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*/
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KTailSize = 4
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};
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/**
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* The buffer with the results of <code>KHeadSize</code> leading iterations.
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*/
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TBMNs iHead[KHeadSize];
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/**
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* The buffer with the results of <code>KTailSize</code> trailing iterations.
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*/
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TBMNs iTail[KTailSize];
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// private:
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void Reset();
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TBMTicks iMinTicks; // the minimal elapsed time in ticks
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TBMTicks iMaxTicks; // the maximal elapsed time in ticks
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TBMTicks iCumulatedTicks; // the elapsed time in ticks cumulated over iCumulatedIterations
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TBMUInt64 iCumulatedIterations; // the number of iterations for iCumulatedTicks
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TBMTicks iHeadTicks[KHeadSize]; // the first KHeadSize results in ticks
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TBMTicks iTailTicks[KTailSize]; // the last KTailSize results in ticks
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};
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/**
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* An object of <code>TBMTimeInterval</code> can be used to measure potentially very long time interval.
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*
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* If the measured time interval is shorter than the period of <code>RBMTimer</code>
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* this high-precision timer will be used; otherwise, <code>TTime</code> timer will be used.
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*/
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class TBMTimeInterval
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{
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public:
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/**
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* A static function to initialize the class static state.
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* Called once by the benchmark suite launcher.
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*/
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static void Init();
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/**
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* Begins the time interval measurement.
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*/
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void Begin();
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/**
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* Ends the time interval measurement.
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*
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* @return the elapsed time in nano-seconds
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*/
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TBMNs EndNs();
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/**
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* Ends the time interval measurement.
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*
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* @return the elapsed time in <code>RBMTimer</code> ticks.
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* Note that the time is always returned in <code>RBMTimer</code> ticks regardless which of two timers,
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* <code>TTime</code> or <code>RBMTimer</code>, was actually used.
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*/
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TBMTicks End();
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/**
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* Period of RBMTimer in nano-seconds
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*/
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static TBMNs iStampPeriodNs;
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/**
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* Period of RBMTimer in ticks
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*/
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static TBMTicks iStampPeriod;
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private:
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TBMTicks iStamp; // the starting time in RBMTimer ticks
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TTime iTime; // the starting TTime
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};
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/**
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* Calculates elapsed time in ticks taking care about possible timer overflow.
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*
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* @param aT0 the beginning of the measured interval
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* @param aT1 the end of the measured interval.
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*
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*/
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inline TBMTicks TBMTicksDelta(TBMTicks aT0, TBMTicks aT1)
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{
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return (aT0 <= aT1) ? (aT1 - aT0) : TBMTimeInterval::iStampPeriod - (aT0 - aT1);
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}
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/**
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* Absolute thread prioiries to be used by benchmark programs
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*/
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enum
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{
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/**
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* Absolute priority to be used for high-priority threads.
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*
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*/
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KBMPriorityHigh = 60, // 60 is above all DFC 26 is below timer DFC
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/**
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* Absolute priority to be used for middle-priority threads.
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* This is also the default prioirty - performance benchmarks are started at this prioirty.
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*/
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KBMPriorityMid = KBMPriorityHigh - 1,
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/**
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* Absolute priority to be used for low-priority threads.
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*/
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KBMPriorityLow = KBMPriorityMid - 1
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};
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/**
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* An object of <code>TBMSpawnArgs</code> type is used to pass arguments through
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* <code>BMProgram::SpawnChild()</code> function from a parent to a child thread.
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*
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* <code>TBMSpawnArgs</code> is typically used as the base class for the actual argument passing object
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* which may define some additional benchmark program specific arguments.
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* The command line descriptor is used to pass a copy of the whole <code>TBMSpawnArgs</code> object
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* from the parent process to the child one.
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*/
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struct TBMSpawnArgs
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{
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/**
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* A magic value to allow the child recognize a command line as a <code>TBMSpawnArgs</code> object.
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* Intialized by constructor.
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*/
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TInt iMagic;
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/**
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* A handle to the parent thread.
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* Intialized by constructor.
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*/
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RThread iParent;
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/**
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* The id of the parent thread.
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* Intialized by constructor.
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*/
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TThreadId iParentId;
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/**
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* If <code>ETrue</code> the child thread runs in a separate process;
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* otherwise, the child thread runs within the parent's process.
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* Intialized by constructor.
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*/
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TBool iRemote;
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/**
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* The child entry point.
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* Intialized by constructor.
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*/
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TThreadFunction iChildFunc;
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/**
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* The child thread absolute prioirty.
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* Intialized by constructor.
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*/
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TInt iChildPrio;
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TInt iChildOrigPriority;
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/**
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* The actual size of the <code>TBMSpawnArgs</code> object.
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* Intialized by constructor.
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*/
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TInt iSize;
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/**
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* The TBMSpawnArgs magic value.
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*/
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static const TInt KMagic;
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/**
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* Construct a new <code>TBMSpawnArgs</code> object.
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*
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* @param aChildFunc the child entry point
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* @param aChildPrio the child thread absolute prioirty
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* @param aRemote if <code>ETrue</code> the child thread must be created in a separate process;
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* otherwise, the child thread must be created within the parent's process.
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*/
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TBMSpawnArgs(TThreadFunction aChildFunc, TInt aChildPrio, TBool aRemote, TInt aSize);
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/**
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* Releases all allocated resources e.g. (<code>iParent</code> handle)
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*/
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|
304 |
~TBMSpawnArgs();
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305 |
};
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|
306 |
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|
307 |
/**
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|
308 |
* Child thread interface. Returned by <code>BMProgram::SpawnChild()</code>
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|
309 |
*/
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|
310 |
class MBMChild
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|
311 |
{
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|
312 |
public:
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|
313 |
/**
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|
314 |
* Wait for the actual child thread termination.
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|
315 |
*/
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|
316 |
virtual void WaitChildExit() = 0;
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sl@0
|
317 |
/**
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|
318 |
* Requests the child thread termination.
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sl@0
|
319 |
*/
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sl@0
|
320 |
virtual void Kill() = 0;
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sl@0
|
321 |
};
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sl@0
|
322 |
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sl@0
|
323 |
/**
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sl@0
|
324 |
* A benchmark program is implemented as a sub-class of the abstract <code>BMProgram</code> class.
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sl@0
|
325 |
*
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|
326 |
* A typical benchmark program implements <code>BMProgram::Run()</code> pure virtual function and
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sl@0
|
327 |
* instantiate an object of the implemented sub-class in its static data.
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sl@0
|
328 |
*/
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sl@0
|
329 |
class BMProgram
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sl@0
|
330 |
{
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sl@0
|
331 |
private:
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sl@0
|
332 |
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sl@0
|
333 |
BMProgram* iNext;
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sl@0
|
334 |
TPtrC iName;
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sl@0
|
335 |
|
|
sl@0
|
336 |
MBMChild* SpawnLocalChild(TBMSpawnArgs*);
|
|
sl@0
|
337 |
MBMChild* SpawnRemoteChild(TBMSpawnArgs*);
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|
sl@0
|
338 |
|
|
sl@0
|
339 |
public:
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|
sl@0
|
340 |
|
|
sl@0
|
341 |
/**
|
|
sl@0
|
342 |
* Utility function to change a thread's absolute priority.
|
|
sl@0
|
343 |
*
|
|
sl@0
|
344 |
* @param aThread a handle ro the target thread.
|
|
sl@0
|
345 |
* @param aNewPrio a new absolute priority for the target thread
|
|
sl@0
|
346 |
* @return the old absolute prioirty of the target thread
|
|
sl@0
|
347 |
*/
|
|
sl@0
|
348 |
static TInt SetAbsPriority(RThread aThread, TInt aNewPrio);
|
|
sl@0
|
349 |
|
|
sl@0
|
350 |
/**
|
|
sl@0
|
351 |
* Constructs a new <code>BMProgram</code> object.
|
|
sl@0
|
352 |
*
|
|
sl@0
|
353 |
* @param aName the bechmark program's title
|
|
sl@0
|
354 |
*/
|
|
sl@0
|
355 |
BMProgram(const TDesC& aName) : iName(aName)
|
|
sl@0
|
356 |
{}
|
|
sl@0
|
357 |
|
|
sl@0
|
358 |
/**
|
|
sl@0
|
359 |
* Gets the nest program in the banchmark suite
|
|
sl@0
|
360 |
*
|
|
sl@0
|
361 |
* @return a pointer to the <code>BMProgram</code> object corresponding to the next benchmark program
|
|
sl@0
|
362 |
* in the benchmark suite
|
|
sl@0
|
363 |
*/
|
|
sl@0
|
364 |
BMProgram*& Next()
|
|
sl@0
|
365 |
{
|
|
sl@0
|
366 |
return iNext;
|
|
sl@0
|
367 |
}
|
|
sl@0
|
368 |
/**
|
|
sl@0
|
369 |
* Gets the benchmark program title
|
|
sl@0
|
370 |
*
|
|
sl@0
|
371 |
* @return a refernce to the descriptor containing the benchmark program title.
|
|
sl@0
|
372 |
*/
|
|
sl@0
|
373 |
const TDesC& Name()
|
|
sl@0
|
374 |
{
|
|
sl@0
|
375 |
return iName;
|
|
sl@0
|
376 |
}
|
|
sl@0
|
377 |
/**
|
|
sl@0
|
378 |
* Runs the benchmark program.
|
|
sl@0
|
379 |
*
|
|
sl@0
|
380 |
* @param aIter the required number of iterations
|
|
sl@0
|
381 |
* @retval aCount the number of performance characteristics measured by the benchmark program.
|
|
sl@0
|
382 |
* @return a pointer to an array of <code>TBMResult</code> objects with the results of measurements of
|
|
sl@0
|
383 |
* individual performance characteristics. The number of array's elements is returned as
|
|
sl@0
|
384 |
* aCount argument.
|
|
sl@0
|
385 |
*/
|
|
sl@0
|
386 |
virtual TBMResult* Run(TBMUInt64 aIter, TInt* aCount) = 0;
|
|
sl@0
|
387 |
|
|
sl@0
|
388 |
/**
|
|
sl@0
|
389 |
* Spawn a child thread
|
|
sl@0
|
390 |
*
|
|
sl@0
|
391 |
* @param args a pointer to a <code>TBMSpawnArgs</code> object that contains genric spawn operation parameters
|
|
sl@0
|
392 |
* as well as program specific arguments to be passed to the chile thread.
|
|
sl@0
|
393 |
*/
|
|
sl@0
|
394 |
MBMChild* SpawnChild(TBMSpawnArgs* args);
|
|
sl@0
|
395 |
|
|
sl@0
|
396 |
/**
|
|
sl@0
|
397 |
* The main benchmark thread's absolute priority as was assigned by the loader.
|
|
sl@0
|
398 |
*/
|
|
sl@0
|
399 |
TInt iOrigAbsPriority;
|
|
sl@0
|
400 |
};
|
|
sl@0
|
401 |
|
|
sl@0
|
402 |
/**
|
|
sl@0
|
403 |
* The benchmark suite wide handle to the high-precision <code>RBMTimer</code>.
|
|
sl@0
|
404 |
*/
|
|
sl@0
|
405 |
extern RBMTimer bmTimer;
|
|
sl@0
|
406 |
extern BMProgram* bmSuite;
|
|
sl@0
|
407 |
|
|
sl@0
|
408 |
void AddrtLatency();
|
|
sl@0
|
409 |
void AddOverhead();
|
|
sl@0
|
410 |
void AddSync();
|
|
sl@0
|
411 |
void AddIpc();
|
|
sl@0
|
412 |
void AddThread();
|
|
sl@0
|
413 |
void AddProperty();
|
|
sl@0
|
414 |
|
|
sl@0
|
415 |
|
|
sl@0
|
416 |
#endif
|