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-rw-r--r--src/VBox/Runtime/testcase/tstRTR0Timer.cpp948
1 files changed, 948 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..fe22a336
--- /dev/null
+++ b/src/VBox/Runtime/testcase/tstRTR0Timer.cpp
@@ -0,0 +1,948 @@
+/* $Id: tstRTR0Timer.cpp $ */
+/** @file
+ * IPRT R0 Testcase - Timers.
+ */
+
+/*
+ * Copyright (C) 2009-2020 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE 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.
+ */
+
+
+/*********************************************************************************************************************************
+* 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 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_PERIODIC_BASIC:
+ case TSTRTR0TIMER_PERIODIC_BASIC_HIRES:
+ {
+ /* Create a periodic timer running at 10 HZ. */
+ uint32_t const u10HzAsNs = 100000000;
+ 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.
+ */
+ PRTTIMER pTimer;
+ uint32_t fFlags = (TSTRTR0TIMER_IS_HIRES(uOperation) ? RTTIMER_FLAGS_HIGH_RES : 0)
+ | RTTIMER_FLAGS_CPU_ALL;
+ uint32_t cNsInterval = cNsSysHz;
+ while (cNsInterval < UINT32_C(1000000))
+ 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 - 1].uNanoTs
+ - g_aOmniLatency[iCpu].aSamples[iSample].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);
+ break;
+ }
+
+ }
+
+ RTR0TESTR0_SRV_REQ_EPILOG(pReqHdr);
+ /* The error indicator is the '!' in the message buffer. */
+ return VINF_SUCCESS;
+}
+