| 1 | /* $Id: tstPrfRT.cpp 28800 2010-04-27 08:22:32Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * IPRT testcase - profile some of the important functions.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2006-2007 Oracle Corporation
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License (GPL) as published by the Free Software
|
|---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | *
|
|---|
| 17 | * The contents of this file may alternatively be used under the terms
|
|---|
| 18 | * of the Common Development and Distribution License Version 1.0
|
|---|
| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
|---|
| 20 | * VirtualBox OSE distribution, in which case the provisions of the
|
|---|
| 21 | * CDDL are applicable instead of those of the GPL.
|
|---|
| 22 | *
|
|---|
| 23 | * You may elect to license modified versions of this file under the
|
|---|
| 24 | * terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 25 | */
|
|---|
| 26 |
|
|---|
| 27 | /*******************************************************************************
|
|---|
| 28 | * Header Files *
|
|---|
| 29 | *******************************************************************************/
|
|---|
| 30 | #include <iprt/initterm.h>
|
|---|
| 31 | #include <iprt/time.h>
|
|---|
| 32 | #include <iprt/log.h>
|
|---|
| 33 | #include <iprt/stream.h>
|
|---|
| 34 | #include <iprt/thread.h>
|
|---|
| 35 | #include <iprt/asm.h>
|
|---|
| 36 |
|
|---|
| 37 |
|
|---|
| 38 | void PrintResult(uint64_t u64Ticks, uint64_t u64MaxTicks, uint64_t u64MinTicks, unsigned cTimes, const char *pszOperation)
|
|---|
| 39 | {
|
|---|
| 40 | RTPrintf("tstPrfRT: %-32s %5lld / %5lld / %5lld ticks per call (%u calls %lld ticks)\n",
|
|---|
| 41 | pszOperation, u64MinTicks, u64Ticks / (uint64_t)cTimes, u64MaxTicks, cTimes, u64Ticks);
|
|---|
| 42 | }
|
|---|
| 43 |
|
|---|
| 44 | #define ITERATE(preexpr, expr, postexpr, cIterations) \
|
|---|
| 45 | for (i = 0, u64TotalTS = 0, u64MinTS = ~0, u64MaxTS = 0; i < (cIterations); i++) \
|
|---|
| 46 | { \
|
|---|
| 47 | { preexpr } \
|
|---|
| 48 | uint64_t u64StartTS = ASMReadTSC(); \
|
|---|
| 49 | { expr } \
|
|---|
| 50 | uint64_t u64ElapsedTS = ASMReadTSC() - u64StartTS; \
|
|---|
| 51 | { postexpr } \
|
|---|
| 52 | if (u64ElapsedTS > u64MinTS * 32) \
|
|---|
| 53 | { \
|
|---|
| 54 | i--; \
|
|---|
| 55 | continue; \
|
|---|
| 56 | } \
|
|---|
| 57 | if (u64ElapsedTS < u64MinTS) \
|
|---|
| 58 | u64MinTS = u64ElapsedTS; \
|
|---|
| 59 | if (u64ElapsedTS > u64MaxTS) \
|
|---|
| 60 | u64MaxTS = u64ElapsedTS; \
|
|---|
| 61 | u64TotalTS += u64ElapsedTS; \
|
|---|
| 62 | }
|
|---|
| 63 |
|
|---|
| 64 | int main()
|
|---|
| 65 | {
|
|---|
| 66 | uint64_t u64TotalTS;
|
|---|
| 67 | uint64_t u64MinTS;
|
|---|
| 68 | uint64_t u64MaxTS;
|
|---|
| 69 | unsigned i;
|
|---|
| 70 |
|
|---|
| 71 | RTR3Init();
|
|---|
| 72 | RTPrintf("tstPrfRT: TESTING...\n");
|
|---|
| 73 |
|
|---|
| 74 | /*
|
|---|
| 75 | * RTTimeNanoTS, RTTimeProgramNanoTS, RTTimeMilliTS, and RTTimeProgramMilliTS.
|
|---|
| 76 | */
|
|---|
| 77 | ITERATE(RT_NOTHING, RTTimeNanoTS();, RT_NOTHING, 1000000);
|
|---|
| 78 | PrintResult(u64TotalTS, u64MaxTS, u64MinTS, i, "RTTimeNanoTS");
|
|---|
| 79 |
|
|---|
| 80 | ITERATE(RT_NOTHING, RTTimeProgramNanoTS();, RT_NOTHING, 1000000);
|
|---|
| 81 | PrintResult(u64TotalTS, u64MaxTS, u64MinTS, i, "RTTimeProgramNanoTS");
|
|---|
| 82 |
|
|---|
| 83 | ITERATE(RT_NOTHING, RTTimeMilliTS();, RT_NOTHING, 1000000);
|
|---|
| 84 | PrintResult(u64TotalTS, u64MaxTS, u64MinTS, i, "RTTimeMilliTS");
|
|---|
| 85 |
|
|---|
| 86 | ITERATE(RT_NOTHING, RTTimeProgramMilliTS();, RT_NOTHING, 1000000);
|
|---|
| 87 | PrintResult(u64TotalTS, u64MaxTS, u64MinTS, i, "RTTimeProgramMilliTS");
|
|---|
| 88 |
|
|---|
| 89 | /*
|
|---|
| 90 | * RTTimeNow
|
|---|
| 91 | */
|
|---|
| 92 | RTTIMESPEC Time;
|
|---|
| 93 | ITERATE(RT_NOTHING, RTTimeNow(&Time);, RT_NOTHING, 1000000);
|
|---|
| 94 | PrintResult(u64TotalTS, u64MaxTS, u64MinTS, i, "RTTimeNow");
|
|---|
| 95 |
|
|---|
| 96 | /*
|
|---|
| 97 | * RTLogDefaultInstance()
|
|---|
| 98 | */
|
|---|
| 99 | ITERATE(RT_NOTHING, RTLogDefaultInstance();, RT_NOTHING, 1000000);
|
|---|
| 100 | PrintResult(u64TotalTS, u64MaxTS, u64MinTS, i, "RTLogDefaultInstance");
|
|---|
| 101 |
|
|---|
| 102 | /*
|
|---|
| 103 | * RTThreadSelf and RTThreadNativeSelf
|
|---|
| 104 | */
|
|---|
| 105 | ITERATE(RT_NOTHING, RTThreadSelf();, RT_NOTHING, 1000000);
|
|---|
| 106 | PrintResult(u64TotalTS, u64MaxTS, u64MinTS, i, "RTThreadSelf");
|
|---|
| 107 |
|
|---|
| 108 | ITERATE(RT_NOTHING, RTThreadNativeSelf();, RT_NOTHING, 1000000);
|
|---|
| 109 | PrintResult(u64TotalTS, u64MaxTS, u64MinTS, i, "RTThreadNativeSelf");
|
|---|
| 110 |
|
|---|
| 111 | RTPrintf("tstPrtRT: DONE\n");
|
|---|
| 112 | return 0;
|
|---|
| 113 | }
|
|---|
