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Diffstat (limited to 'src/VBox/Runtime/testcase/tstRTR0Timer.cpp')
| -rw-r--r-- | src/VBox/Runtime/testcase/tstRTR0Timer.cpp | 1021 |
1 files changed, 1021 insertions, 0 deletions
diff --git a/src/VBox/Runtime/testcase/tstRTR0Timer.cpp b/src/VBox/Runtime/testcase/tstRTR0Timer.cpp new file mode 100644 index 00000000..c4b8b5f3 --- /dev/null +++ b/src/VBox/Runtime/testcase/tstRTR0Timer.cpp @@ -0,0 +1,1021 @@ +/* $Id: tstRTR0Timer.cpp $ */ +/** @file + * IPRT R0 Testcase - Timers. + */ + +/* + * Copyright (C) 2009-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include <iprt/timer.h> + +#include <iprt/asm.h> +#include <iprt/asm-amd64-x86.h> +#include <iprt/cpuset.h> +#include <iprt/err.h> +#include <iprt/mem.h> +#include <iprt/mp.h> +#include <iprt/param.h> +#include <iprt/string.h> +#include <iprt/thread.h> +#include <iprt/time.h> +#include <VBox/sup.h> +#include "tstRTR0Timer.h" +#include "tstRTR0Common.h" + + +/********************************************************************************************************************************* +* Structures and Typedefs * +*********************************************************************************************************************************/ +typedef struct +{ + /** Array of nano second timestamp of the first few shots. */ + uint64_t volatile aShotNsTSes[10]; + /** The number of shots. */ + uint32_t volatile cShots; + /** The shot at which action is to be taken. */ + uint32_t iActionShot; + /** The RC of whatever operation performed in the handler. */ + int volatile rc; + /** Set if it's a periodic test. */ + bool fPeriodic; + /** Test specific stuff. */ + union + { + /** tstRTR0TimerCallbackU32ChangeInterval parameters. */ + struct + { + /** The interval change step. */ + uint32_t cNsChangeStep; + /** The current timer interval. */ + uint32_t cNsCurInterval; + /** The minimum interval. */ + uint32_t cNsMinInterval; + /** The maximum interval. */ + uint32_t cNsMaxInterval; + /** Direction flag; false = decrement, true = increment. */ + bool fDirection; + /** The number of steps between each change. */ + uint8_t cStepsBetween; + } ChgInt; + /** tstRTR0TimerCallbackSpecific parameters. */ + struct + { + /** The expected CPU. */ + RTCPUID idCpu; + /** Set if this failed. */ + bool fFailed; + } Specific; + } u; +} TSTRTR0TIMERS1; +typedef TSTRTR0TIMERS1 *PTSTRTR0TIMERS1; + + +/** + * Per cpu state for an omni timer test. + */ +typedef struct TSTRTR0TIMEROMNI1 +{ + /** When we started receiving timer callbacks on this CPU. */ + uint64_t u64Start; + /** When we received the last tick on this timer. */ + uint64_t u64Last; + /** The number of ticks received on this CPU. */ + uint32_t volatile cTicks; + uint32_t u32Padding; +} TSTRTR0TIMEROMNI1; +typedef TSTRTR0TIMEROMNI1 *PTSTRTR0TIMEROMNI1; + + +/********************************************************************************************************************************* +* Global Variables * +*********************************************************************************************************************************/ +/** + * Latency data. + */ +static struct TSTRTR0TIMEROMNILATENCY +{ + /** The number of samples. */ + volatile uint32_t cSamples; + uint32_t auPadding[3]; + struct + { + uint64_t uTsc; + uint64_t uNanoTs; + } aSamples[4096]; +} g_aOmniLatency[16]; + + + + +/** + * Callback for the omni timer latency test, adds a sample to g_aOmniLatency. + * + * @param pTimer The timer. + * @param iTick The current tick. + * @param pvUser The user argument. + */ +static DECLCALLBACK(void) tstRTR0TimerCallbackLatencyOmni(PRTTIMER pTimer, void *pvUser, uint64_t iTick) +{ + RTCPUID idCpu = RTMpCpuId(); + uint32_t iCpu = RTMpCpuIdToSetIndex(idCpu); + NOREF(pTimer); NOREF(pvUser); NOREF(iTick); + + //RTR0TESTR0_CHECK_MSG(iCpu < RT_ELEMENTS(g_aOmniLatency), ("iCpu=%d idCpu=%u\n", iCpu, idCpu)); + if (iCpu < RT_ELEMENTS(g_aOmniLatency)) + { + uint32_t iSample = g_aOmniLatency[iCpu].cSamples; + if (iSample < RT_ELEMENTS(g_aOmniLatency[iCpu].aSamples)) + { + g_aOmniLatency[iCpu].aSamples[iSample].uTsc = ASMReadTSC(); + g_aOmniLatency[iCpu].aSamples[iSample].uNanoTs = RTTimeSystemNanoTS(); + g_aOmniLatency[iCpu].cSamples = iSample + 1; + } + } +} + + +/** + * Callback which increments a 32-bit counter. + * + * @param pTimer The timer. + * @param iTick The current tick. + * @param pvUser The user argument. + */ +static DECLCALLBACK(void) tstRTR0TimerCallbackOmni(PRTTIMER pTimer, void *pvUser, uint64_t iTick) +{ + PTSTRTR0TIMEROMNI1 paStates = (PTSTRTR0TIMEROMNI1)pvUser; + RTCPUID idCpu = RTMpCpuId(); + uint32_t iCpu = RTMpCpuIdToSetIndex(idCpu); + NOREF(pTimer); + + RTR0TESTR0_CHECK_MSG(iCpu < RTCPUSET_MAX_CPUS, ("iCpu=%d idCpu=%u\n", iCpu, idCpu)); + if (iCpu < RTCPUSET_MAX_CPUS) + { + uint32_t iCountedTick = ASMAtomicIncU32(&paStates[iCpu].cTicks); + RTR0TESTR0_CHECK_MSG(iCountedTick == iTick, + ("iCountedTick=%u iTick=%u iCpu=%d idCpu=%u\n", iCountedTick, iTick, iCpu, idCpu)); + paStates[iCpu].u64Last = RTTimeSystemNanoTS(); + if (!paStates[iCpu].u64Start) + { + paStates[iCpu].u64Start = paStates[iCpu].u64Last; + RTR0TESTR0_CHECK_MSG(iCountedTick == 1, ("iCountedTick=%u iCpu=%d idCpu=%u\n", iCountedTick, iCpu, idCpu)); + } + } +} + + +/** + * Callback for one-shot resolution detection. + * + * @param pTimer The timer. + * @param iTick The current tick. + * @param pvUser Points to variable with the start TS, update to time + * elapsed till this call. + */ +static DECLCALLBACK(void) tstRTR0TimerCallbackOneShotElapsed(PRTTIMER pTimer, void *pvUser, uint64_t iTick) +{ + RT_NOREF(pTimer, iTick); + uint64_t *puNanoTS = (uint64_t *)pvUser; + *puNanoTS = RTTimeSystemNanoTS() - *puNanoTS; +} + + +/** + * Callback which increments a 32-bit counter. + * + * @param pTimer The timer. + * @param iTick The current tick. + * @param pvUser The user argument. + */ +static DECLCALLBACK(void) tstRTR0TimerCallbackSpecific(PRTTIMER pTimer, void *pvUser, uint64_t iTick) +{ + PTSTRTR0TIMERS1 pState = (PTSTRTR0TIMERS1)pvUser; + uint32_t iShot = ASMAtomicIncU32(&pState->cShots); + NOREF(pTimer); + + if (iShot <= RT_ELEMENTS(pState->aShotNsTSes)) + pState->aShotNsTSes[iShot - 1] = RTTimeSystemNanoTS(); + + RTCPUID idCpu = RTMpCpuId(); + if (pState->u.Specific.idCpu != idCpu) + pState->u.Specific.fFailed = true; + RTR0TESTR0_CHECK_MSG(pState->u.Specific.idCpu == idCpu, ("idCpu=%u, expected %u\n", idCpu, pState->u.Specific.idCpu)); + + if (pState->fPeriodic) + RTR0TESTR0_CHECK_MSG(iShot == iTick, ("iShot=%u iTick=%u\n", iShot, iTick)); + else + RTR0TESTR0_CHECK_MSG(iTick == 1, ("iShot=%u iTick=%u\n", iShot, iTick)); +} + + +/** + * Callback which changes the interval at each invocation. + * + * The changes are governed by TSTRTR0TIMERS1::ChangeInterval. The callback + * calls RTTimerStop at iActionShot. + * + * @param pTimer The timer. + * @param iTick The current tick. + * @param pvUser The user argument. + */ +static DECLCALLBACK(void) tstRTR0TimerCallbackChangeInterval(PRTTIMER pTimer, void *pvUser, uint64_t iTick) +{ + PTSTRTR0TIMERS1 pState = (PTSTRTR0TIMERS1)pvUser; + uint32_t iShot = ASMAtomicIncU32(&pState->cShots) - 1; + + if (iShot < RT_ELEMENTS(pState->aShotNsTSes)) + pState->aShotNsTSes[iShot] = RTTimeSystemNanoTS(); + if (pState->fPeriodic) + RTR0TESTR0_CHECK_MSG(iShot + 1 == iTick, ("iShot=%u iTick=%u\n", iShot, iTick)); + else + RTR0TESTR0_CHECK_MSG(iTick == 1, ("iShot=%u iTick=%u\n", iShot, iTick)); + + if (!(iShot % pState->u.ChgInt.cStepsBetween)) + { + if (pState->u.ChgInt.fDirection) + { + pState->u.ChgInt.cNsCurInterval += pState->u.ChgInt.cNsChangeStep; + if ( pState->u.ChgInt.cNsCurInterval > pState->u.ChgInt.cNsMaxInterval + || pState->u.ChgInt.cNsCurInterval < pState->u.ChgInt.cNsMinInterval + || !pState->u.ChgInt.cNsCurInterval) + { + pState->u.ChgInt.cNsCurInterval = pState->u.ChgInt.cNsMaxInterval; + pState->u.ChgInt.fDirection = false; + } + } + else + { + pState->u.ChgInt.cNsCurInterval -= pState->u.ChgInt.cNsChangeStep; + if ( pState->u.ChgInt.cNsCurInterval < pState->u.ChgInt.cNsMinInterval + || pState->u.ChgInt.cNsCurInterval > pState->u.ChgInt.cNsMaxInterval + || pState->u.ChgInt.cNsCurInterval) + { + pState->u.ChgInt.cNsCurInterval = pState->u.ChgInt.cNsMinInterval; + pState->u.ChgInt.fDirection = true; + } + } + + RTR0TESTR0_CHECK_RC(RTTimerChangeInterval(pTimer, pState->u.ChgInt.cNsCurInterval), VINF_SUCCESS); + } + + if (iShot == pState->iActionShot) + RTR0TESTR0_CHECK_RC(pState->rc = RTTimerStop(pTimer), VINF_SUCCESS); +} + + +/** + * Callback which increments destroy the timer when it fires. + * + * @param pTimer The timer. + * @param iTick The current tick. + * @param pvUser The user argument. + */ +static DECLCALLBACK(void) tstRTR0TimerCallbackDestroyOnce(PRTTIMER pTimer, void *pvUser, uint64_t iTick) +{ + PTSTRTR0TIMERS1 pState = (PTSTRTR0TIMERS1)pvUser; + uint32_t iShot = ASMAtomicIncU32(&pState->cShots); + + if (iShot <= RT_ELEMENTS(pState->aShotNsTSes)) + pState->aShotNsTSes[iShot - 1] = RTTimeSystemNanoTS(); + if (pState->fPeriodic) + RTR0TESTR0_CHECK_MSG(iShot == iTick, ("iShot=%u iTick=%u\n", iShot, iTick)); + else + RTR0TESTR0_CHECK_MSG(iTick == 1, ("iShot=%u iTick=%u\n", iShot, iTick)); + + if (iShot == pState->iActionShot + 1) + RTR0TESTR0_CHECK_RC(pState->rc = RTTimerDestroy(pTimer), VINF_SUCCESS); +} + + +/** + * Callback which increments restarts a timer once. + * + * @param pTimer The timer. + * @param iTick The current tick. + * @param pvUser The user argument. + */ +static DECLCALLBACK(void) tstRTR0TimerCallbackRestartOnce(PRTTIMER pTimer, void *pvUser, uint64_t iTick) +{ + PTSTRTR0TIMERS1 pState = (PTSTRTR0TIMERS1)pvUser; + uint32_t iShot = ASMAtomicIncU32(&pState->cShots); + + if (iShot <= RT_ELEMENTS(pState->aShotNsTSes)) + pState->aShotNsTSes[iShot - 1] = RTTimeSystemNanoTS(); + if (pState->fPeriodic) + RTR0TESTR0_CHECK_MSG(iShot == iTick, ("iShot=%u iTick=%u\n", iShot, iTick)); + else + RTR0TESTR0_CHECK_MSG(iTick == 1, ("iShot=%u iTick=%u\n", iShot, iTick)); + + if (iShot == pState->iActionShot + 1) + RTR0TESTR0_CHECK_RC(pState->rc = RTTimerStart(pTimer, 10000000 /* 10ms */), VINF_SUCCESS); +} + + +/** + * Callback which increments a 32-bit counter. + * + * @param pTimer The timer. + * @param iTick The current tick. + * @param pvUser The user argument. + */ +static DECLCALLBACK(void) tstRTR0TimerCallbackU32Counter(PRTTIMER pTimer, void *pvUser, uint64_t iTick) +{ + PTSTRTR0TIMERS1 pState = (PTSTRTR0TIMERS1)pvUser; + uint32_t iShot = ASMAtomicIncU32(&pState->cShots); + NOREF(pTimer); + + if (iShot <= RT_ELEMENTS(pState->aShotNsTSes)) + pState->aShotNsTSes[iShot - 1] = RTTimeSystemNanoTS(); + if (pState->fPeriodic) + RTR0TESTR0_CHECK_MSG(iShot == iTick, ("iShot=%u iTick=%u\n", iShot, iTick)); + else + RTR0TESTR0_CHECK_MSG(iTick == 1, ("iShot=%u iTick=%u\n", iShot, iTick)); +} + + +#ifdef SOME_UNUSED_FUNCTION +/** + * Checks that the interval between two timer shots are within the specified + * range. + * + * @returns 0 if ok, 1 if bad. + * @param iShot The shot number (for bitching). + * @param uPrevTS The time stamp of the previous shot (ns). + * @param uThisTS The timer stamp of this shot (ns). + * @param uMin The minimum interval (ns). + * @param uMax The maximum interval (ns). + */ +static int tstRTR0TimerCheckShotInterval(uint32_t iShot, uint64_t uPrevTS, uint64_t uThisTS, uint32_t uMin, uint32_t uMax) +{ + uint64_t uDelta = uThisTS - uPrevTS; + RTR0TESTR0_CHECK_MSG_RET(uDelta >= uMin, ("iShot=%u uDelta=%lld uMin=%u\n", iShot, uDelta, uMin), 1); + RTR0TESTR0_CHECK_MSG_RET(uDelta <= uMax, ("iShot=%u uDelta=%lld uMax=%u\n", iShot, uDelta, uMax), 1); + return 0; +} +#endif + + +/** + * Checks that the interval between timer shots are within a certain range. + * + * @returns Number of violations (i.e. 0 is ok). + * @param pState The state. + * @param uStartNsTS The start time stamp (ns). + * @param uMin The minimum interval (ns). + * @param uMax The maximum interval (ns). + */ +static int tstRTR0TimerCheckShotIntervals(PTSTRTR0TIMERS1 pState, uint64_t uStartNsTS, uint32_t uMin, uint32_t uMax) +{ + uint64_t uMaxDelta = 0; + uint64_t uMinDelta = UINT64_MAX; + uint32_t cBadShots = 0; + uint32_t cShots = pState->cShots; + uint64_t uPrevTS = uStartNsTS; + for (uint32_t iShot = 0; iShot < cShots; iShot++) + { + uint64_t uThisTS = pState->aShotNsTSes[iShot]; + uint64_t uDelta = uThisTS - uPrevTS; + if (uDelta > uMaxDelta) + uMaxDelta = uDelta; + if (uDelta < uMinDelta) + uMinDelta = uDelta; + cBadShots += !(uDelta >= uMin && uDelta <= uMax); + + RTR0TESTR0_CHECK_MSG(uDelta >= uMin, ("iShot=%u uDelta=%lld uMin=%u\n", iShot, uDelta, uMin)); + RTR0TESTR0_CHECK_MSG(uDelta <= uMax, ("iShot=%u uDelta=%lld uMax=%u\n", iShot, uDelta, uMax)); + + uPrevTS = uThisTS; + } + + RTR0TestR0Info("uMaxDelta=%llu uMinDelta=%llu\n", uMaxDelta, uMinDelta); + return cBadShots; +} + + +/** + * Service request callback function. + * + * @returns VBox status code. + * @param pSession The caller's session. + * @param u64Arg 64-bit integer argument. + * @param pReqHdr The request header. Input / Output. Optional. + */ +DECLEXPORT(int) TSTRTR0TimerSrvReqHandler(PSUPDRVSESSION pSession, uint32_t uOperation, + uint64_t u64Arg, PSUPR0SERVICEREQHDR pReqHdr) +{ + RTR0TESTR0_SRV_REQ_PROLOG_RET(pReqHdr); + NOREF(pSession); + + /* + * Common parameter and state variables. + */ + uint32_t const cNsSysHz = RTTimerGetSystemGranularity(); + uint32_t const cNsMaxHighResHz = 10000; /** @todo need API for this */ + TSTRTR0TIMERS1 State; + if ( cNsSysHz < UINT32_C(1000) + || cNsSysHz > UINT32_C(1000000000) + || cNsMaxHighResHz < UINT32_C(1) + || cNsMaxHighResHz > UINT32_C(1000000000)) + { + RTR0TESTR0_CHECK_MSG(cNsSysHz > UINT32_C(1000) && cNsSysHz < UINT32_C(1000000000), ("%u", cNsSysHz)); + RTR0TESTR0_CHECK_MSG(cNsMaxHighResHz > UINT32_C(1) && cNsMaxHighResHz < UINT32_C(1000000000), ("%u", cNsMaxHighResHz)); + RTR0TESTR0_SRV_REQ_EPILOG(pReqHdr); + return VINF_SUCCESS; + } + + /* + * The big switch. + */ + switch (uOperation) + { + RTR0TESTR0_IMPLEMENT_SANITY_CASES(); + RTR0TESTR0_IMPLEMENT_DEFAULT_CASE(uOperation); + + case TSTRTR0TIMER_ONE_SHOT_BASIC: + case TSTRTR0TIMER_ONE_SHOT_BASIC_HIRES: + { + /* Create a one-shot timer and take one shot. */ + PRTTIMER pTimer; + uint32_t fFlags = TSTRTR0TIMER_IS_HIRES(uOperation) ? RTTIMER_FLAGS_HIGH_RES : 0; + int rc = RTTimerCreateEx(&pTimer, 0, fFlags, tstRTR0TimerCallbackU32Counter, &State); + if (rc == VERR_NOT_SUPPORTED) + { + RTR0TestR0Info("one-shot timer are not supported, skipping\n"); + RTR0TESTR0_SKIP(); + break; + } + RTR0TESTR0_CHECK_RC_BREAK(rc, VINF_SUCCESS); + + do /* break loop */ + { + RT_ZERO(State); ASMAtomicWriteU32(&State.cShots, State.cShots); + RTR0TESTR0_CHECK_RC_BREAK(RTTimerStart(pTimer, 0), VINF_SUCCESS); + for (uint32_t i = 0; i < 1000 && !ASMAtomicUoReadU32(&State.cShots); i++) + RTThreadSleep(5); + RTR0TESTR0_CHECK_MSG_BREAK(ASMAtomicUoReadU32(&State.cShots) == 1, ("cShots=%u\n", State.cShots)); + + /* check that it is restartable. */ + RT_ZERO(State); ASMAtomicWriteU32(&State.cShots, State.cShots); + RTR0TESTR0_CHECK_RC_BREAK(RTTimerStart(pTimer, 0), VINF_SUCCESS); + for (uint32_t i = 0; i < 1000 && !ASMAtomicUoReadU32(&State.cShots); i++) + RTThreadSleep(5); + RTR0TESTR0_CHECK_MSG_BREAK(ASMAtomicUoReadU32(&State.cShots) == 1, ("cShots=%u\n", State.cShots)); + + /* check that it respects the timeout value and can be cancelled. */ + RT_ZERO(State); ASMAtomicWriteU32(&State.cShots, State.cShots); + RTR0TESTR0_CHECK_RC(RTTimerStart(pTimer, 5*UINT64_C(1000000000)), VINF_SUCCESS); + RTR0TESTR0_CHECK_RC(RTTimerStop(pTimer), VINF_SUCCESS); + RTThreadSleep(1); + RTR0TESTR0_CHECK_MSG_BREAK(ASMAtomicUoReadU32(&State.cShots) == 0, ("cShots=%u\n", State.cShots)); + + /* Check some double starts and stops (shall not assert). */ + RT_ZERO(State); ASMAtomicWriteU32(&State.cShots, State.cShots); + RTR0TESTR0_CHECK_RC(RTTimerStart(pTimer, 5*UINT64_C(1000000000)), VINF_SUCCESS); + RTR0TESTR0_CHECK_RC(RTTimerStart(pTimer, 0), VERR_TIMER_ACTIVE); + RTR0TESTR0_CHECK_RC(RTTimerStop(pTimer), VINF_SUCCESS); + RTR0TESTR0_CHECK_RC(RTTimerStop(pTimer), VERR_TIMER_SUSPENDED); + RTThreadSleep(1); + RTR0TESTR0_CHECK_MSG_BREAK(ASMAtomicUoReadU32(&State.cShots) == 0, ("cShots=%u\n", State.cShots)); + } while (0); + RTR0TESTR0_CHECK_RC(RTTimerDestroy(pTimer), VINF_SUCCESS); + RTR0TESTR0_CHECK_RC(RTTimerDestroy(NULL), VINF_SUCCESS); + break; + } + + case TSTRTR0TIMER_ONE_SHOT_RESTART: + case TSTRTR0TIMER_ONE_SHOT_RESTART_HIRES: + { +#if !defined(RT_OS_SOLARIS) /* Not expected to work on all hosts. */ + /* Create a one-shot timer and restart it in the callback handler. */ + PRTTIMER pTimer; + uint32_t fFlags = TSTRTR0TIMER_IS_HIRES(uOperation) ? RTTIMER_FLAGS_HIGH_RES : 0; + for (uint32_t iTest = 0; iTest < 2; iTest++) + { + int rc = RTTimerCreateEx(&pTimer, 0, fFlags, tstRTR0TimerCallbackRestartOnce, &State); + if (rc == VERR_NOT_SUPPORTED) + { + RTR0TestR0Info("one-shot timer are not supported, skipping\n"); + RTR0TESTR0_SKIP(); + break; + } + RTR0TESTR0_CHECK_RC_BREAK(rc, VINF_SUCCESS); + + RT_ZERO(State); + State.iActionShot = 0; + ASMAtomicWriteU32(&State.cShots, State.cShots); + do /* break loop */ + { + RTR0TESTR0_CHECK_RC_BREAK(RTTimerStart(pTimer, cNsSysHz * iTest), VINF_SUCCESS); + for (uint32_t i = 0; i < 1000 && ASMAtomicUoReadU32(&State.cShots) < 2; i++) + RTThreadSleep(5); + RTR0TESTR0_CHECK_MSG_BREAK(ASMAtomicUoReadU32(&State.cShots) == 2, ("cShots=%u\n", State.cShots)); + } while (0); + RTR0TESTR0_CHECK_RC(RTTimerDestroy(pTimer), VINF_SUCCESS); + } +#else + RTR0TestR0Info("restarting from callback not supported on this platform\n"); + RTR0TESTR0_SKIP(); +#endif + break; + } + + case TSTRTR0TIMER_ONE_SHOT_DESTROY: + case TSTRTR0TIMER_ONE_SHOT_DESTROY_HIRES: + { +#if !defined(RT_OS_SOLARIS) && !defined(RT_OS_WINDOWS) /* Not expected to work on all hosts. */ + /* Create a one-shot timer and destroy it in the callback handler. */ + PRTTIMER pTimer; + uint32_t fFlags = TSTRTR0TIMER_IS_HIRES(uOperation) ? RTTIMER_FLAGS_HIGH_RES : 0; + for (uint32_t iTest = 0; iTest < 2; iTest++) + { + int rc = RTTimerCreateEx(&pTimer, 0, fFlags, tstRTR0TimerCallbackDestroyOnce, &State); + if (rc == VERR_NOT_SUPPORTED) + { + RTR0TestR0Info("one-shot timer are not supported, skipping\n"); + RTR0TESTR0_SKIP(); + break; + } + RTR0TESTR0_CHECK_RC_BREAK(rc, VINF_SUCCESS); + + RT_ZERO(State); + State.rc = VERR_IPE_UNINITIALIZED_STATUS; + State.iActionShot = 0; + ASMAtomicWriteU32(&State.cShots, State.cShots); + do /* break loop */ + { + RTR0TESTR0_CHECK_RC_BREAK(RTTimerStart(pTimer, cNsSysHz * iTest), VINF_SUCCESS); + for (uint32_t i = 0; i < 1000 && (ASMAtomicUoReadU32(&State.cShots) < 1 || State.rc == VERR_IPE_UNINITIALIZED_STATUS); i++) + RTThreadSleep(5); + RTR0TESTR0_CHECK_MSG_BREAK(ASMAtomicReadU32(&State.cShots) == 1, ("cShots=%u\n", State.cShots)); + RTR0TESTR0_CHECK_MSG_BREAK(State.rc == VINF_SUCCESS, ("rc=%Rrc\n", State.rc)); + } while (0); + if (RT_FAILURE(State.rc)) + RTR0TESTR0_CHECK_RC(RTTimerDestroy(pTimer), VINF_SUCCESS); + } +#else + RTR0TestR0Info("destroying from callback not supported on this platform\n"); + RTR0TESTR0_SKIP(); +#endif + break; + } + + case TSTRTR0TIMER_ONE_SHOT_SPECIFIC: + case TSTRTR0TIMER_ONE_SHOT_SPECIFIC_HIRES: + { + PRTTIMER pTimer = NULL; + RTCPUSET OnlineSet; + RTMpGetOnlineSet(&OnlineSet); + for (uint32_t iCpu = 0; iCpu < RTCPUSET_MAX_CPUS; iCpu++) + if (RTCpuSetIsMemberByIndex(&OnlineSet, iCpu)) + { + RT_ZERO(State); + State.iActionShot = 0; + State.rc = VINF_SUCCESS; + State.u.Specific.idCpu = RTMpCpuIdFromSetIndex(iCpu); + ASMAtomicWriteU32(&State.cShots, State.cShots); + + uint32_t fFlags = TSTRTR0TIMER_IS_HIRES(uOperation) ? RTTIMER_FLAGS_HIGH_RES : 0; + fFlags |= RTTIMER_FLAGS_CPU(iCpu); + int rc = RTTimerCreateEx(&pTimer, 0, fFlags, tstRTR0TimerCallbackSpecific, &State); + if (rc == VERR_NOT_SUPPORTED) + { + RTR0TestR0Info("one-shot specific timer are not supported, skipping\n"); + RTR0TESTR0_SKIP(); + break; + } + RTR0TESTR0_CHECK_RC_BREAK(rc, VINF_SUCCESS); + + for (uint32_t i = 0; i < 5 && !RTR0TestR0HaveErrors(); i++) + { + ASMAtomicWriteU32(&State.cShots, 0); + RTR0TESTR0_CHECK_RC_BREAK(RTTimerStart(pTimer, (i & 2 ? cNsSysHz : cNsSysHz / 2) * (i & 1)), VINF_SUCCESS); + uint64_t cNsElapsed = RTTimeSystemNanoTS(); + for (uint32_t j = 0; j < 1000 && ASMAtomicUoReadU32(&State.cShots) < 1; j++) + RTThreadSleep(5); + cNsElapsed = RTTimeSystemNanoTS() - cNsElapsed; + RTR0TESTR0_CHECK_MSG_BREAK(ASMAtomicReadU32(&State.cShots) == 1, + ("cShots=%u iCpu=%u i=%u iCurCpu=%u cNsElapsed=%'llu\n", + State.cShots, iCpu, i, RTMpCpuIdToSetIndex(RTMpCpuId()), cNsElapsed )); + RTR0TESTR0_CHECK_MSG_BREAK(State.rc == VINF_SUCCESS, ("rc=%Rrc\n", State.rc)); + RTR0TESTR0_CHECK_MSG_BREAK(!State.u.Specific.fFailed, ("iCpu=%u i=%u\n", iCpu, i)); + } + + RTR0TESTR0_CHECK_RC(RTTimerDestroy(pTimer), VINF_SUCCESS); + pTimer = NULL; + if (RTR0TestR0HaveErrors()) + break; + + RTMpGetOnlineSet(&OnlineSet); + } + RTR0TESTR0_CHECK_RC(RTTimerDestroy(pTimer), VINF_SUCCESS); + break; + } + + case TSTRTR0TIMER_ONE_SHOT_RESOLUTION: + case TSTRTR0TIMER_ONE_SHOT_RESOLUTION_HIRES: + { + /* Just create a timer and do a number of RTTimerStart with a small + interval and see how quickly it gets called. */ + PRTTIMER pTimer; + uint32_t fFlags = TSTRTR0TIMER_IS_HIRES(uOperation) ? RTTIMER_FLAGS_HIGH_RES : 0; + uint64_t volatile cNsElapsed = 0; + RTR0TESTR0_CHECK_RC_BREAK(RTTimerCreateEx(&pTimer, 0, fFlags, tstRTR0TimerCallbackOneShotElapsed, (void *)&cNsElapsed), + VINF_SUCCESS); + + uint32_t cTotal = 0; + uint32_t cNsTotal = 0; + uint32_t cNsMin = UINT32_MAX; + uint32_t cNsMax = 0; + for (uint32_t i = 0; i < 200; i++) + { + cNsElapsed = RTTimeSystemNanoTS(); + RTR0TESTR0_CHECK_RC_BREAK(RTTimerStart(pTimer, RT_NS_1US), VINF_SUCCESS); + RTThreadSleep(10); + cTotal += 1; + cNsTotal += cNsElapsed; + if (cNsMin > cNsElapsed) + cNsMin = cNsElapsed; + if (cNsMax < cNsElapsed) + cNsMax = cNsElapsed; + } + RTR0TESTR0_CHECK_RC(RTTimerDestroy(pTimer), VINF_SUCCESS); + pTimer = NULL; + RTR0TestR0Info("nsMin=%u nsAvg=%u nsMax=%u cTotal=%u\n", cNsMin, cNsTotal / cTotal, cNsMax, cTotal); + break; + } + + case TSTRTR0TIMER_PERIODIC_BASIC: + case TSTRTR0TIMER_PERIODIC_BASIC_HIRES: + { + /* Create a periodic timer running at 10 HZ. */ + uint32_t const u10HzAsNs = RT_NS_1SEC / 10; + uint32_t const u10HzAsNsMin = u10HzAsNs - u10HzAsNs / 2; + uint32_t const u10HzAsNsMax = u10HzAsNs + u10HzAsNs / 2; + PRTTIMER pTimer; + uint32_t fFlags = TSTRTR0TIMER_IS_HIRES(uOperation) ? RTTIMER_FLAGS_HIGH_RES : 0; + RTR0TESTR0_CHECK_RC_BREAK(RTTimerCreateEx(&pTimer, u10HzAsNs, fFlags, tstRTR0TimerCallbackU32Counter, &State), + VINF_SUCCESS); + + for (uint32_t iTest = 0; iTest < 2; iTest++) + { + RT_ZERO(State); + State.fPeriodic = true; + ASMAtomicWriteU32(&State.cShots, State.cShots); + + uint64_t uStartNsTS = RTTimeSystemNanoTS(); + RTR0TESTR0_CHECK_RC_BREAK(RTTimerStart(pTimer, u10HzAsNs), VINF_SUCCESS); + for (uint32_t i = 0; i < 1000 && ASMAtomicUoReadU32(&State.cShots) < 10; i++) + RTThreadSleep(10); + RTR0TESTR0_CHECK_RC_BREAK(RTTimerStop(pTimer), VINF_SUCCESS); + RTR0TESTR0_CHECK_MSG_BREAK(ASMAtomicUoReadU32(&State.cShots) == 10, ("cShots=%u\n", State.cShots)); + if (tstRTR0TimerCheckShotIntervals(&State, uStartNsTS, u10HzAsNsMin, u10HzAsNsMax)) + break; + RTThreadSleep(1); /** @todo RTTimerStop doesn't currently make sure the timer callback not is running + * before returning on windows, linux (low res) and possible other plaforms. */ + } + RTR0TESTR0_CHECK_RC(RTTimerDestroy(pTimer), VINF_SUCCESS); + RTR0TESTR0_CHECK_RC(RTTimerDestroy(NULL), VINF_SUCCESS); + break; + } + + case TSTRTR0TIMER_PERIODIC_CSSD_LOOPS: + case TSTRTR0TIMER_PERIODIC_CSSD_LOOPS_HIRES: + { + /* create, start, stop & destroy high res timers a number of times. */ + uint32_t fFlags = TSTRTR0TIMER_IS_HIRES(uOperation) ? RTTIMER_FLAGS_HIGH_RES : 0; + for (uint32_t i = 0; i < 40; i++) + { + PRTTIMER pTimer; + RTR0TESTR0_CHECK_RC_BREAK(RTTimerCreateEx(&pTimer, cNsSysHz, fFlags, tstRTR0TimerCallbackU32Counter, &State), + VINF_SUCCESS); + for (uint32_t j = 0; j < 10; j++) + { + RT_ZERO(State); + State.fPeriodic = true; + ASMAtomicWriteU32(&State.cShots, State.cShots); /* ordered, necessary? */ + + RTR0TESTR0_CHECK_RC_BREAK(RTTimerStart(pTimer, i < 20 ? 0 : cNsSysHz), VINF_SUCCESS); + for (uint32_t k = 0; k < 1000 && ASMAtomicUoReadU32(&State.cShots) < 2; k++) + RTThreadSleep(1); + RTR0TESTR0_CHECK_RC_BREAK(RTTimerStop(pTimer), VINF_SUCCESS); + RTThreadSleep(1); /** @todo RTTimerStop doesn't currently make sure the timer callback not is running + * before returning on windows, linux (low res) and possible other plaforms. */ + } + RTR0TESTR0_CHECK_RC(RTTimerDestroy(pTimer), VINF_SUCCESS); + } + break; + } + + case TSTRTR0TIMER_PERIODIC_CHANGE_INTERVAL: + case TSTRTR0TIMER_PERIODIC_CHANGE_INTERVAL_HIRES: + { + /* Initialize the test parameters, using the u64Arg value for selecting variations. */ + RT_ZERO(State); + State.cShots = 0; + State.rc = VERR_IPE_UNINITIALIZED_STATUS; + State.iActionShot = 42; + State.fPeriodic = true; + State.u.ChgInt.fDirection = !!(u64Arg & 1); + if (uOperation == TSTRTR0TIMER_PERIODIC_CHANGE_INTERVAL_HIRES) + { + State.u.ChgInt.cNsMaxInterval = RT_MAX(cNsMaxHighResHz * 10, 20000000); /* 10x / 20 ms */ + State.u.ChgInt.cNsMinInterval = RT_MAX(cNsMaxHighResHz, 10000); /* min / 10 us */ + } + else + { + State.u.ChgInt.cNsMaxInterval = cNsSysHz * 4; + State.u.ChgInt.cNsMinInterval = cNsSysHz; + } + State.u.ChgInt.cNsChangeStep = (State.u.ChgInt.cNsMaxInterval - State.u.ChgInt.cNsMinInterval) / 10; + State.u.ChgInt.cNsCurInterval = State.u.ChgInt.fDirection + ? State.u.ChgInt.cNsMaxInterval : State.u.ChgInt.cNsMinInterval; + State.u.ChgInt.cStepsBetween = u64Arg & 4 ? 1 : 3; + RTR0TESTR0_CHECK_MSG_BREAK(State.u.ChgInt.cNsMinInterval > 1000, ("%u\n", State.u.ChgInt.cNsMinInterval)); + RTR0TESTR0_CHECK_MSG_BREAK(State.u.ChgInt.cNsMaxInterval > State.u.ChgInt.cNsMinInterval, ("max=%u min=%u\n", State.u.ChgInt.cNsMaxInterval, State.u.ChgInt.cNsMinInterval)); + ASMAtomicWriteU32(&State.cShots, State.cShots); + + /* create the timer and check if RTTimerChangeInterval is supported. */ + PRTTIMER pTimer; + uint32_t fFlags = TSTRTR0TIMER_IS_HIRES(uOperation) ? RTTIMER_FLAGS_HIGH_RES : 0; + RTR0TESTR0_CHECK_RC_BREAK(RTTimerCreateEx(&pTimer, cNsSysHz, fFlags, tstRTR0TimerCallbackChangeInterval, &State), + VINF_SUCCESS); + int rc = RTTimerChangeInterval(pTimer, State.u.ChgInt.cNsMinInterval); + if (rc == VERR_NOT_SUPPORTED) + { + RTR0TestR0Info("RTTimerChangeInterval not supported, skipped"); + RTR0TESTR0_CHECK_RC(RTTimerDestroy(pTimer), VINF_SUCCESS); + RTR0TESTR0_SKIP(); + break; + } + + /* do the test. */ + RTR0TESTR0_CHECK_RC_BREAK(RTTimerStart(pTimer, u64Arg & 2 ? State.u.ChgInt.cNsCurInterval : 0), VINF_SUCCESS); + for (uint32_t k = 0; + k < 1000 + && ASMAtomicReadU32(&State.cShots) <= State.iActionShot + && State.rc == VERR_IPE_UNINITIALIZED_STATUS; + k++) + RTThreadSleep(10); + + rc = RTTimerStop(pTimer); + RTR0TESTR0_CHECK_MSG_BREAK(rc == VERR_TIMER_SUSPENDED || rc == VINF_SUCCESS, ("rc = %Rrc (RTTimerStop)\n", rc)); + RTR0TESTR0_CHECK_RC(RTTimerDestroy(pTimer), VINF_SUCCESS); + break; + } + + case TSTRTR0TIMER_PERIODIC_SPECIFIC: + case TSTRTR0TIMER_PERIODIC_SPECIFIC_HIRES: + { + PRTTIMER pTimer = NULL; + RTCPUSET OnlineSet; + RTMpGetOnlineSet(&OnlineSet); + for (uint32_t iCpu = 0; iCpu < RTCPUSET_MAX_CPUS; iCpu++) + if (RTCpuSetIsMemberByIndex(&OnlineSet, iCpu)) + { + RT_ZERO(State); + State.iActionShot = 0; + State.rc = VINF_SUCCESS; + State.fPeriodic = true; + State.u.Specific.idCpu = RTMpCpuIdFromSetIndex(iCpu); + ASMAtomicWriteU32(&State.cShots, State.cShots); + + uint32_t fFlags = TSTRTR0TIMER_IS_HIRES(uOperation) ? RTTIMER_FLAGS_HIGH_RES : 0; + fFlags |= RTTIMER_FLAGS_CPU(iCpu); + int rc = RTTimerCreateEx(&pTimer, cNsSysHz, fFlags, tstRTR0TimerCallbackSpecific, &State); + if (rc == VERR_NOT_SUPPORTED) + { + RTR0TestR0Info("specific timer are not supported, skipping\n"); + RTR0TESTR0_SKIP(); + break; + } + RTR0TESTR0_CHECK_RC_BREAK(rc, VINF_SUCCESS); + + for (uint32_t i = 0; i < 3 && !RTR0TestR0HaveErrors(); i++) + { + ASMAtomicWriteU32(&State.cShots, 0); + RTR0TESTR0_CHECK_RC_BREAK(RTTimerStart(pTimer, (i & 2 ? cNsSysHz : cNsSysHz / 2) * (i & 1)), VINF_SUCCESS); + uint64_t cNsElapsed = RTTimeSystemNanoTS(); + for (uint32_t j = 0; j < 1000 && ASMAtomicUoReadU32(&State.cShots) < 8; j++) + RTThreadSleep(5); + cNsElapsed = RTTimeSystemNanoTS() - cNsElapsed; + RTR0TESTR0_CHECK_RC_BREAK(RTTimerStop(pTimer), VINF_SUCCESS); + RTR0TESTR0_CHECK_MSG_BREAK(ASMAtomicReadU32(&State.cShots) > 5, + ("cShots=%u iCpu=%u i=%u iCurCpu=%u cNsElapsed=%'llu\n", + State.cShots, iCpu, i, RTMpCpuIdToSetIndex(RTMpCpuId()), cNsElapsed)); + RTThreadSleep(1); /** @todo RTTimerStop doesn't currently make sure the timer callback not is running + * before returning on windows, linux (low res) and possible other plaforms. */ + RTR0TESTR0_CHECK_MSG_BREAK(State.rc == VINF_SUCCESS, ("rc=%Rrc\n", State.rc)); + RTR0TESTR0_CHECK_MSG_BREAK(!State.u.Specific.fFailed, ("iCpu=%u i=%u\n", iCpu, i)); + } + + RTR0TESTR0_CHECK_RC(RTTimerDestroy(pTimer), VINF_SUCCESS); + pTimer = NULL; + if (RTR0TestR0HaveErrors()) + break; + + RTMpGetOnlineSet(&OnlineSet); + } + RTR0TESTR0_CHECK_RC(RTTimerDestroy(pTimer), VINF_SUCCESS); + break; + } + + case TSTRTR0TIMER_PERIODIC_OMNI: + case TSTRTR0TIMER_PERIODIC_OMNI_HIRES: + { + /* Create a periodic timer running at max host frequency, but no more than 1000 Hz. */ + uint32_t cNsInterval = cNsSysHz; + while (cNsInterval < UINT32_C(1000000)) + cNsInterval *= 2; + PTSTRTR0TIMEROMNI1 paStates = (PTSTRTR0TIMEROMNI1)RTMemAllocZ(sizeof(paStates[0]) * RTCPUSET_MAX_CPUS); + RTR0TESTR0_CHECK_MSG_BREAK(paStates, ("%d\n", RTCPUSET_MAX_CPUS)); + + PRTTIMER pTimer; + uint32_t fFlags = (TSTRTR0TIMER_IS_HIRES(uOperation) ? RTTIMER_FLAGS_HIGH_RES : 0) + | RTTIMER_FLAGS_CPU_ALL; + int rc = RTTimerCreateEx(&pTimer, cNsInterval, fFlags, tstRTR0TimerCallbackOmni, paStates); + if (rc == VERR_NOT_SUPPORTED) + { + RTR0TESTR0_SKIP_BREAK(); + } + RTR0TESTR0_CHECK_RC_BREAK(rc, VINF_SUCCESS); + + for (uint32_t iTest = 0; iTest < 3 && !RTR0TestR0HaveErrors(); iTest++) + { + /* reset the state */ + for (uint32_t iCpu = 0; iCpu < RTCPUSET_MAX_CPUS; iCpu++) + { + paStates[iCpu].u64Start = 0; + paStates[iCpu].u64Last = 0; + ASMAtomicWriteU32(&paStates[iCpu].cTicks, 0); + } + + /* run it for 5 seconds. */ + RTCPUSET OnlineSet; + uint64_t uStartNsTS = RTTimeSystemNanoTS(); + RTR0TESTR0_CHECK_RC_BREAK(RTTimerStart(pTimer, 0), VINF_SUCCESS); + RTMpGetOnlineSet(&OnlineSet); + + for (uint32_t i = 0; i < 5000 && RTTimeSystemNanoTS() - uStartNsTS <= UINT64_C(5000000000); i++) + RTThreadSleep(2); + + RTR0TESTR0_CHECK_RC_BREAK(RTTimerStop(pTimer), VINF_SUCCESS); + uint64_t cNsElapsedX = RTTimeNanoTS() - uStartNsTS; + + /* Do a min/max on the start and stop times and calculate the test period. */ + uint64_t u64MinStart = UINT64_MAX; + uint64_t u64MaxStop = 0; + for (uint32_t iCpu = 0; iCpu < RTCPUSET_MAX_CPUS; iCpu++) + { + if (paStates[iCpu].u64Start) + { + if (paStates[iCpu].u64Start < u64MinStart) + u64MinStart = paStates[iCpu].u64Start; + if (paStates[iCpu].u64Last > u64MaxStop) + u64MaxStop = paStates[iCpu].u64Last; + } + } + RTR0TESTR0_CHECK_MSG(u64MinStart < u64MaxStop, ("%llu, %llu", u64MinStart, u64MaxStop)); + uint64_t cNsElapsed = u64MaxStop - u64MinStart; + RTR0TESTR0_CHECK_MSG(cNsElapsed <= cNsElapsedX + 100000, ("%llu, %llu", cNsElapsed, cNsElapsedX)); /* the fudge factor is time drift */ + uint32_t cAvgTicks = cNsElapsed / cNsInterval + 1; + + /* Check tick counts. ASSUMES no cpu on- or offlining. + This only catches really bad stuff. */ + uint32_t cMargin = TSTRTR0TIMER_IS_HIRES(uOperation) ? 10 : 5; /* Allow a wider deviation for the non hires timers. */ + uint32_t cMinTicks = cAvgTicks - cAvgTicks / cMargin; + uint32_t cMaxTicks = cAvgTicks + cAvgTicks / cMargin + 1; + for (uint32_t iCpu = 0; iCpu < RTCPUSET_MAX_CPUS; iCpu++) + if (paStates[iCpu].cTicks) + { + RTR0TESTR0_CHECK_MSG(RTCpuSetIsMemberByIndex(&OnlineSet, iCpu), ("%d\n", iCpu)); + RTR0TESTR0_CHECK_MSG(paStates[iCpu].cTicks <= cMaxTicks && paStates[iCpu].cTicks >= cMinTicks, + ("min=%u, ticks=%u, avg=%u max=%u, iCpu=%u, iCpuCurr=%u, interval=%'u, elapsed=%'llu/%'llu\n", + cMinTicks, paStates[iCpu].cTicks, cAvgTicks, cMaxTicks, iCpu, + RTMpCpuIdToSetIndex(RTMpCpuId()), + cNsInterval, cNsElapsed, cNsElapsedX)); + } + else + RTR0TESTR0_CHECK_MSG(!RTCpuSetIsMemberByIndex(&OnlineSet, iCpu), ("%d\n", iCpu)); + } + + RTR0TESTR0_CHECK_RC(RTTimerDestroy(pTimer), VINF_SUCCESS); + RTMemFree(paStates); + break; + } + + + case TSTRTR0TIMER_LATENCY_OMNI: + case TSTRTR0TIMER_LATENCY_OMNI_HIRES: + { + /* + * Create a periodic timer running at max host frequency, but no more than 1000 Hz. + * Unless it's a high resolution timer, which we try at double the rate. + * Windows seems to limit the highres stuff to around 500-600 us interval. + */ + PRTTIMER pTimer; + uint32_t fFlags = (TSTRTR0TIMER_IS_HIRES(uOperation) ? RTTIMER_FLAGS_HIGH_RES : 0) + | RTTIMER_FLAGS_CPU_ALL; + uint32_t const cNsMinInterval = TSTRTR0TIMER_IS_HIRES(uOperation) ? cNsMaxHighResHz : RT_NS_1MS; + uint32_t cNsInterval = TSTRTR0TIMER_IS_HIRES(uOperation) ? cNsSysHz / 2 : cNsSysHz; + while (cNsInterval < cNsMinInterval) + cNsInterval *= 2; + int rc = RTTimerCreateEx(&pTimer, cNsInterval, fFlags, tstRTR0TimerCallbackLatencyOmni, NULL); + if (rc == VERR_NOT_SUPPORTED) + { + RTR0TESTR0_SKIP_BREAK(); + } + RTR0TESTR0_CHECK_RC_BREAK(rc, VINF_SUCCESS); + + /* + * Reset the state and run the test for 4 seconds. + */ + RT_ZERO(g_aOmniLatency); + + RTCPUSET OnlineSet; + uint64_t uStartNsTS = RTTimeSystemNanoTS(); + RTR0TESTR0_CHECK_RC_BREAK(RTTimerStart(pTimer, 0), VINF_SUCCESS); + RTMpGetOnlineSet(&OnlineSet); + + for (uint32_t i = 0; i < 5000 && RTTimeSystemNanoTS() - uStartNsTS <= UINT64_C(4000000000); i++) + RTThreadSleep(2); + + RTR0TESTR0_CHECK_RC_BREAK(RTTimerStop(pTimer), VINF_SUCCESS); + + /* + * Process the result. + */ + int32_t cNsLow = cNsInterval / 4 * 3; /* 75% */ + int32_t cNsHigh = cNsInterval / 4 * 5; /* 125% */ + uint32_t cTotal = 0; + uint32_t cLow = 0; + uint32_t cHigh = 0; + for (uint32_t iCpu = 0; iCpu < RT_ELEMENTS(g_aOmniLatency); iCpu++) + { + uint32_t cSamples = g_aOmniLatency[iCpu].cSamples; + if (cSamples > 1) + { + cTotal += cSamples - 1; + for (uint32_t iSample = 1; iSample < cSamples; iSample++) + { + int64_t cNsDelta = g_aOmniLatency[iCpu].aSamples[iSample].uNanoTs + - g_aOmniLatency[iCpu].aSamples[iSample - 1].uNanoTs; + if (cNsDelta < cNsLow) + cLow++; + else if (cNsDelta > cNsHigh) + cHigh++; + } + } + } + RTR0TestR0Info("125%%: %u; 75%%: %u; total: %u", cHigh, cLow, cTotal); + RTR0TESTR0_CHECK_RC(RTTimerDestroy(pTimer), VINF_SUCCESS); +#if 1 + RTR0TestR0Info("cNsSysHz=%u cNsInterval=%RU32 cNsLow=%d cNsHigh=%d", cNsSysHz, cNsInterval, cNsLow, cNsHigh); + if (TSTRTR0TIMER_IS_HIRES(uOperation)) + RTR0TestR0Info("RTTimerCanDoHighResolution -> %d", RTTimerCanDoHighResolution()); + for (uint32_t iSample = 1; iSample < 6; iSample++) + RTR0TestR0Info("%RU64/%#RU64", + g_aOmniLatency[0].aSamples[iSample].uNanoTs - g_aOmniLatency[0].aSamples[iSample - 1].uNanoTs, + g_aOmniLatency[0].aSamples[iSample].uTsc - g_aOmniLatency[0].aSamples[iSample - 1].uTsc); +#endif + break; + } + + } + + RTR0TESTR0_SRV_REQ_EPILOG(pReqHdr); + /* The error indicator is the '!' in the message buffer. */ + return VINF_SUCCESS; +} + |