| 1 | /* $Id: tstRTThreadExecutionTime.cpp 93115 2022-01-01 11:31:46Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT Testcase - RTThreadGetExecution.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2010-2022 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 |
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| 28 | /*********************************************************************************************************************************
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| 29 | * Header Files *
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| 30 | *********************************************************************************************************************************/
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| 31 | #include <iprt/thread.h>
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| 32 |
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| 33 | #include <iprt/asm.h>
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| 34 | #include <iprt/test.h>
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| 35 | #include <iprt/string.h>
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| 36 | #include <iprt/stream.h>
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| 37 | #include <iprt/time.h>
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| 38 |
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| 39 |
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| 40 | /*********************************************************************************************************************************
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| 41 | * Global Variables *
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| 42 | *********************************************************************************************************************************/
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| 43 | static RTTEST g_hTest;
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| 44 | static volatile uint64_t g_kernel, g_user;
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| 45 |
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| 46 |
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| 47 | static DECLCALLBACK(int) testThread(RTTHREAD hSelf, void *pvUser)
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| 48 | {
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| 49 | RT_NOREF_PV(hSelf); RT_NOREF_PV(pvUser);
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| 50 |
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| 51 | uint64_t u64Now = RTTimeMilliTS();
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| 52 | uint64_t kernel, kernelStart, user, userStart;
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| 53 | RTThreadGetExecutionTimeMilli(&kernelStart, &userStart);
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| 54 | while (RTTimeMilliTS() < u64Now + 1000)
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| 55 | ;
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| 56 | RTThreadGetExecutionTimeMilli(&kernel, &user);
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| 57 | RTPrintf("kernel = %4lldms, user = %4lldms\n", kernel - kernelStart, user - userStart);
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| 58 | ASMAtomicAddU64(&g_kernel, kernel);
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| 59 | ASMAtomicAddU64(&g_user, user);
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| 60 |
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| 61 | return VINF_SUCCESS;
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| 62 | }
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| 63 |
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| 64 |
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| 65 | static void test1(void)
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| 66 | {
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| 67 | RTTestSub(g_hTest, "Interrupt RTThreadSleep");
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| 68 | RTTHREAD hThread[16];
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| 69 | RTMSINTERVAL msWait = 1000;
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| 70 | for (unsigned i = 0; i < RT_ELEMENTS(hThread); i++)
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| 71 | {
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| 72 | RTTESTI_CHECK_RC_RETV(RTThreadCreate(&hThread[i], testThread, NULL, 0, RTTHREADTYPE_DEFAULT,
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| 73 | RTTHREADFLAGS_WAITABLE, "test"), VINF_SUCCESS);
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| 74 | }
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| 75 | RTThreadSleep(500);
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| 76 | RTPrintf("Waiting for %dms ...\n", msWait);
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| 77 | RTThreadSleep(msWait);
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| 78 | for (unsigned i = 0; i < RT_ELEMENTS(hThread); i++)
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| 79 | RTTESTI_CHECK_RC(RTThreadWait(hThread[i], RT_INDEFINITE_WAIT, NULL), VINF_SUCCESS);
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| 80 |
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| 81 | RTPrintf("sum kernel = %lldms, sum user = %lldms\n", g_kernel, g_user);
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| 82 | }
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| 83 |
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| 84 |
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| 85 | int main()
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| 86 | {
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| 87 | RTEXITCODE rcExit = RTTestInitAndCreate("tstRTThreadExecutionTime", &g_hTest);
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| 88 | if (rcExit != RTEXITCODE_SUCCESS)
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| 89 | return rcExit;
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| 90 | test1();
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| 91 |
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| 92 | return RTTestSummaryAndDestroy(g_hTest);
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| 93 | }
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