Exemplo n.º 1
0
static void Test3(void)
{
    RTTestSub(g_hTest, "Negative");
    bool fSavedAssertQuiet    = RTAssertSetQuiet(true);
    bool fSavedAssertMayPanic = RTAssertSetMayPanic(false);
    bool fSavedLckValEnabled  = RTLockValidatorSetEnabled(false);

    RTSEMRW hSemRW;
    RTTEST_CHECK_RC_RETV(g_hTest, RTSemRWCreate(&hSemRW), VINF_SUCCESS);

    RTTEST_CHECK_RC(g_hTest, RTSemRWReleaseRead(hSemRW), VERR_NOT_OWNER);
    RTTEST_CHECK_RC(g_hTest, RTSemRWReleaseWrite(hSemRW), VERR_NOT_OWNER);

    RTTEST_CHECK_RC(g_hTest, RTSemRWRequestWrite(hSemRW, RT_INDEFINITE_WAIT), VINF_SUCCESS);
    RTTEST_CHECK_RC(g_hTest, RTSemRWReleaseRead(hSemRW), VERR_NOT_OWNER);

    RTTEST_CHECK_RC(g_hTest, RTSemRWRequestRead(hSemRW, RT_INDEFINITE_WAIT), VINF_SUCCESS);
    RTTEST_CHECK_RC(g_hTest, RTSemRWReleaseWrite(hSemRW), VERR_WRONG_ORDER); /* cannot release the final write before the reads. */
    RTTEST_CHECK_RC(g_hTest, RTSemRWReleaseRead(hSemRW), VINF_SUCCESS);
    RTTEST_CHECK_RC(g_hTest, RTSemRWReleaseWrite(hSemRW), VINF_SUCCESS);

    RTTEST_CHECK_RC(g_hTest, RTSemRWDestroy(hSemRW), VINF_SUCCESS);

    RTLockValidatorSetEnabled(fSavedLckValEnabled);
    RTAssertSetMayPanic(fSavedAssertMayPanic);
    RTAssertSetQuiet(fSavedAssertQuiet);
}
Exemplo n.º 2
0
/**
 * Do-once callback that initializes the read/write semaphore and registers
 * the built-in interpreters.
 *
 * @returns IPRT status code.
 * @param   pvUser1     NULL.
 * @param   pvUser2     NULL.
 */
static DECLCALLBACK(int) rtDbgModInitOnce(void *pvUser1, void *pvUser2)
{
    /*
     * Create the semaphore and string cache.
     */
    int rc = RTSemRWCreate(&g_hDbgModRWSem);
    AssertRCReturn(rc, rc);

    rc = RTStrCacheCreate(&g_hDbgModStrCache, "RTDBGMOD");
    if (RT_SUCCESS(rc))
    {
        /*
         * Register the interpreters.
         */
        rc = rtDbgModDebugInterpreterRegister(&g_rtDbgModVtDbgNm);
        if (RT_SUCCESS(rc))
        {
            /*
             * Finally, register the IPRT cleanup callback.
             */
            rc = RTTermRegisterCallback(rtDbgModTermCallback, NULL);
            if (RT_SUCCESS(rc))
                return VINF_SUCCESS;

            /* bail out: use the termination callback. */
        }
    }
    else
        g_hDbgModStrCache = NIL_RTSTRCACHE;
    rtDbgModTermCallback(RTTERMREASON_UNLOAD, 0, NULL);
    return rc;
}
Exemplo n.º 3
0
/**
 * Initializes the address space parts of DBGF.
 *
 * @returns VBox status code.
 * @param   pUVM        The user mode VM handle.
 */
int dbgfR3AsInit(PUVM pUVM)
{
    /*
     * Create the semaphore.
     */
    int rc = RTSemRWCreate(&pUVM->dbgf.s.hAsDbLock);
    AssertRCReturn(rc, rc);

    /*
     * Create the standard address spaces.
     */
    RTDBGAS hDbgAs;
    rc = RTDbgAsCreate(&hDbgAs, 0, RTGCPTR_MAX, "Global");
    AssertRCReturn(rc, rc);
    rc = DBGFR3AsAdd(pUVM, hDbgAs, NIL_RTPROCESS);
    AssertRCReturn(rc, rc);
    RTDbgAsRetain(hDbgAs);
    pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_GLOBAL)] = hDbgAs;

    RTDbgAsRetain(hDbgAs);
    pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_KERNEL)] = hDbgAs;

    rc = RTDbgAsCreate(&hDbgAs, 0, RTGCPHYS_MAX, "Physical");
    AssertRCReturn(rc, rc);
    rc = DBGFR3AsAdd(pUVM, hDbgAs, NIL_RTPROCESS);
    AssertRCReturn(rc, rc);
    RTDbgAsRetain(hDbgAs);
    pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_PHYS)] = hDbgAs;

    rc = RTDbgAsCreate(&hDbgAs, 0, RTRCPTR_MAX, "HyperRawMode");
    AssertRCReturn(rc, rc);
    rc = DBGFR3AsAdd(pUVM, hDbgAs, NIL_RTPROCESS);
    AssertRCReturn(rc, rc);
    RTDbgAsRetain(hDbgAs);
    pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_RC)] = hDbgAs;
    RTDbgAsRetain(hDbgAs);
    pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_RC_AND_GC_GLOBAL)] = hDbgAs;

    rc = RTDbgAsCreate(&hDbgAs, 0, RTR0PTR_MAX, "HyperRing0");
    AssertRCReturn(rc, rc);
    rc = DBGFR3AsAdd(pUVM, hDbgAs, NIL_RTPROCESS);
    AssertRCReturn(rc, rc);
    RTDbgAsRetain(hDbgAs);
    pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_R0)] = hDbgAs;

    return VINF_SUCCESS;
}
Exemplo n.º 4
0
static void Test2(void)
{
    RTTestSub(g_hTest, "Timeout");

    RTSEMRW hSemRW = NIL_RTSEMRW;
    RTTEST_CHECK_RC_RETV(g_hTest, RTSemRWCreate(&hSemRW), VINF_SUCCESS);

    /* Lock it for writing and let the thread do the remainder of the test. */
    RTTEST_CHECK_RC_RETV(g_hTest, RTSemRWRequestWrite(hSemRW, RT_INDEFINITE_WAIT), VINF_SUCCESS);

    RTTHREAD hThread;
    RTTEST_CHECK_RC_RETV(g_hTest, RTThreadCreate(&hThread, Test2Thread, hSemRW, 0,
                                                 RTTHREADTYPE_DEFAULT, RTTHREADFLAGS_WAITABLE, "test2"),
                         VINF_SUCCESS);
    RTTEST_CHECK_RC(g_hTest, RTThreadWait(hThread, 15000, NULL), VINF_SUCCESS);
    RTTEST_CHECK_RC(g_hTest, RTSemRWReleaseWrite(hSemRW), VINF_SUCCESS);

    RTTEST_CHECK_RC(g_hTest, RTSemRWDestroy(hSemRW), VINF_SUCCESS);
}
/**
 * Initializes the address space parts of DBGF.
 *
 * @returns VBox status code.
 * @param   pUVM        The user mode VM handle.
 */
int dbgfR3AsInit(PUVM pUVM)
{
    Assert(pUVM->pVM);

    /*
     * Create the semaphore.
     */
    int rc = RTSemRWCreate(&pUVM->dbgf.s.hAsDbLock);
    AssertRCReturn(rc, rc);

    /*
     * Create the debugging config instance and set it up, defaulting to
     * deferred loading in order to keep things fast.
     */
    rc = RTDbgCfgCreate(&pUVM->dbgf.s.hDbgCfg, NULL, true /*fNativePaths*/);
    AssertRCReturn(rc, rc);
    rc = RTDbgCfgChangeUInt(pUVM->dbgf.s.hDbgCfg, RTDBGCFGPROP_FLAGS, RTDBGCFGOP_PREPEND,
                            RTDBGCFG_FLAGS_DEFERRED);
    AssertRCReturn(rc, rc);

    static struct
    {
        RTDBGCFGPROP    enmProp;
        const char     *pszEnvName;
        const char     *pszCfgName;
    } const s_aProps[] =
    {
        { RTDBGCFGPROP_FLAGS,               "VBOXDBG_FLAGS",            "Flags"             },
        { RTDBGCFGPROP_PATH,                "VBOXDBG_PATH",             "Path"              },
        { RTDBGCFGPROP_SUFFIXES,            "VBOXDBG_SUFFIXES",         "Suffixes"          },
        { RTDBGCFGPROP_SRC_PATH,            "VBOXDBG_SRC_PATH",         "SrcPath"           },
    };
    PCFGMNODE pCfgDbgf = CFGMR3GetChild(CFGMR3GetRootU(pUVM), "/DBGF");
    for (unsigned i = 0; i < RT_ELEMENTS(s_aProps); i++)
    {
        char szEnvValue[8192];
        rc = RTEnvGetEx(RTENV_DEFAULT, s_aProps[i].pszEnvName, szEnvValue, sizeof(szEnvValue), NULL);
        if (RT_SUCCESS(rc))
        {
            rc = RTDbgCfgChangeString(pUVM->dbgf.s.hDbgCfg, s_aProps[i].enmProp, RTDBGCFGOP_PREPEND, szEnvValue);
            if (RT_FAILURE(rc))
                return VMR3SetError(pUVM, rc, RT_SRC_POS,
                                    "DBGF Config Error: %s=%s -> %Rrc", s_aProps[i].pszEnvName, szEnvValue, rc);
        }
        else if (rc != VERR_ENV_VAR_NOT_FOUND)
            return VMR3SetError(pUVM, rc, RT_SRC_POS,
                                "DBGF Config Error: Error querying env.var. %s: %Rrc", s_aProps[i].pszEnvName, rc);

        char *pszCfgValue;
        rc = CFGMR3QueryStringAllocDef(pCfgDbgf, s_aProps[i].pszCfgName, &pszCfgValue, NULL);
        if (RT_FAILURE(rc))
            return VMR3SetError(pUVM, rc, RT_SRC_POS,
                                "DBGF Config Error: Querying /DBGF/%s -> %Rrc", s_aProps[i].pszCfgName, rc);
        if (pszCfgValue)
        {
            rc = RTDbgCfgChangeString(pUVM->dbgf.s.hDbgCfg, s_aProps[i].enmProp, RTDBGCFGOP_PREPEND, pszCfgValue);
            if (RT_FAILURE(rc))
                return VMR3SetError(pUVM, rc, RT_SRC_POS,
                                    "DBGF Config Error: /DBGF/%s=%s -> %Rrc", s_aProps[i].pszCfgName, pszCfgValue, rc);
        }
    }

    /*
     * Prepend the NoArch and VBoxDbgSyms directories to the path.
     */
    char szPath[RTPATH_MAX];
    rc = RTPathAppPrivateNoArch(szPath, sizeof(szPath));
    AssertRCReturn(rc, rc);
#ifdef RT_OS_DARWIN
    rc = RTPathAppend(szPath, sizeof(szPath), "../Resources/VBoxDbgSyms/");
#else
    rc = RTDbgCfgChangeString(pUVM->dbgf.s.hDbgCfg, RTDBGCFGPROP_PATH, RTDBGCFGOP_PREPEND, szPath);
    AssertRCReturn(rc, rc);

    rc = RTPathAppend(szPath, sizeof(szPath), "VBoxDbgSyms/");
#endif
    AssertRCReturn(rc, rc);
    rc = RTDbgCfgChangeString(pUVM->dbgf.s.hDbgCfg, RTDBGCFGPROP_PATH, RTDBGCFGOP_PREPEND, szPath);
    AssertRCReturn(rc, rc);

    /*
     * Create the standard address spaces.
     */
    RTDBGAS hDbgAs;
    rc = RTDbgAsCreate(&hDbgAs, 0, RTGCPTR_MAX, "Global");
    AssertRCReturn(rc, rc);
    rc = DBGFR3AsAdd(pUVM, hDbgAs, NIL_RTPROCESS);
    AssertRCReturn(rc, rc);
    RTDbgAsRetain(hDbgAs);
    pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_GLOBAL)] = hDbgAs;

    RTDbgAsRetain(hDbgAs);
    pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_KERNEL)] = hDbgAs;

    rc = RTDbgAsCreate(&hDbgAs, 0, RTGCPHYS_MAX, "Physical");
    AssertRCReturn(rc, rc);
    rc = DBGFR3AsAdd(pUVM, hDbgAs, NIL_RTPROCESS);
    AssertRCReturn(rc, rc);
    RTDbgAsRetain(hDbgAs);
    pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_PHYS)] = hDbgAs;

    rc = RTDbgAsCreate(&hDbgAs, 0, RTRCPTR_MAX, "HyperRawMode");
    AssertRCReturn(rc, rc);
    rc = DBGFR3AsAdd(pUVM, hDbgAs, NIL_RTPROCESS);
    AssertRCReturn(rc, rc);
    RTDbgAsRetain(hDbgAs);
    pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_RC)] = hDbgAs;
    RTDbgAsRetain(hDbgAs);
    pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_RC_AND_GC_GLOBAL)] = hDbgAs;

    rc = RTDbgAsCreate(&hDbgAs, 0, RTR0PTR_MAX, "HyperRing0");
    AssertRCReturn(rc, rc);
    rc = DBGFR3AsAdd(pUVM, hDbgAs, NIL_RTPROCESS);
    AssertRCReturn(rc, rc);
    RTDbgAsRetain(hDbgAs);
    pUVM->dbgf.s.ahAsAliases[DBGF_AS_ALIAS_2_INDEX(DBGF_AS_R0)] = hDbgAs;

    return VINF_SUCCESS;
}
Exemplo n.º 6
0
static bool Test1(void)
{
    RTTestSub(g_hTest, "Basics");

    RTSEMRW hSemRW = NIL_RTSEMRW;
    RTTEST_CHECK_RC_RET(g_hTest, RTSemRWCreate(&hSemRW), VINF_SUCCESS, false);
    RTTEST_CHECK_RET(g_hTest, hSemRW != NIL_RTSEMRW, false);

    RTTEST_CHECK_RC_RET(g_hTest, RTSemRWRequestRead(hSemRW, RT_INDEFINITE_WAIT), VINF_SUCCESS, false);
    RTTEST_CHECK_RC_RET(g_hTest, RTSemRWReleaseRead(hSemRW), VINF_SUCCESS, false);

    for (unsigned cMs = 0; cMs < 50; cMs++)
    {
        RTTEST_CHECK_RC_RET(g_hTest, RTSemRWRequestRead(hSemRW, cMs), VINF_SUCCESS, false);
        RTTEST_CHECK_RC_RET(g_hTest, RTSemRWRequestRead(hSemRW, cMs), VINF_SUCCESS, false);
        RTTEST_CHECK_RC_RET(g_hTest, RTSemRWReleaseRead(hSemRW), VINF_SUCCESS, false);
        RTTEST_CHECK_RC_RET(g_hTest, RTSemRWReleaseRead(hSemRW), VINF_SUCCESS, false);
    }

    RTTEST_CHECK_RC_RET(g_hTest, RTSemRWRequestWrite(hSemRW, RT_INDEFINITE_WAIT), VINF_SUCCESS, false);
    RTTEST_CHECK_RC_RET(g_hTest, RTSemRWReleaseWrite(hSemRW), VINF_SUCCESS, false);

    RTTEST_CHECK_RC_RET(g_hTest, RTSemRWRequestWrite(hSemRW, RT_INDEFINITE_WAIT), VINF_SUCCESS, false);
    RTTEST_CHECK_RC_RET(g_hTest, RTSemRWRequestRead(hSemRW, RT_INDEFINITE_WAIT), VINF_SUCCESS, false);
    RTTEST_CHECK_RC_RET(g_hTest, RTSemRWReleaseRead(hSemRW), VINF_SUCCESS, false);
    RTTEST_CHECK_RC_RET(g_hTest, RTSemRWReleaseWrite(hSemRW), VINF_SUCCESS, false);

    for (unsigned cMs = 0; cMs < 50; cMs++)
    {
        RTTEST_CHECK_RC_RET(g_hTest, RTSemRWRequestWrite(hSemRW, cMs), VINF_SUCCESS, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWGetWriteRecursion(hSemRW) == 1, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWGetWriterReadRecursion(hSemRW) == 0, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWIsWriteOwner(hSemRW) == true, false);

        RTTEST_CHECK_RC_RET(g_hTest, RTSemRWRequestWrite(hSemRW, cMs), VINF_SUCCESS, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWGetWriteRecursion(hSemRW) == 2, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWGetWriterReadRecursion(hSemRW) == 0, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWIsWriteOwner(hSemRW) == true, false);

        RTTEST_CHECK_RC_RET(g_hTest, RTSemRWRequestRead(hSemRW, cMs), VINF_SUCCESS, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWGetWriteRecursion(hSemRW) == 2, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWGetWriterReadRecursion(hSemRW) == 1, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWIsWriteOwner(hSemRW) == true, false);

        RTTEST_CHECK_RC_RET(g_hTest, RTSemRWRequestWrite(hSemRW, cMs), VINF_SUCCESS, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWGetWriteRecursion(hSemRW) == 3, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWGetWriterReadRecursion(hSemRW) == 1, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWIsWriteOwner(hSemRW) == true, false);

        /*  midway  */

        RTTEST_CHECK_RC_RET(g_hTest, RTSemRWReleaseWrite(hSemRW), VINF_SUCCESS, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWGetWriteRecursion(hSemRW) == 2, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWGetWriterReadRecursion(hSemRW) == 1, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWIsWriteOwner(hSemRW) == true, false);

        RTTEST_CHECK_RC_RET(g_hTest, RTSemRWReleaseRead(hSemRW), VINF_SUCCESS, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWGetWriteRecursion(hSemRW) == 2, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWGetWriterReadRecursion(hSemRW) == 0, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWIsWriteOwner(hSemRW) == true, false);

        RTTEST_CHECK_RC_RET(g_hTest, RTSemRWReleaseWrite(hSemRW), VINF_SUCCESS, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWGetWriteRecursion(hSemRW) == 1, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWGetWriterReadRecursion(hSemRW) == 0, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWIsWriteOwner(hSemRW) == true, false);

        RTTEST_CHECK_RC_RET(g_hTest, RTSemRWReleaseWrite(hSemRW), VINF_SUCCESS, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWGetWriteRecursion(hSemRW) == 0, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWGetWriterReadRecursion(hSemRW) == 0, false);
        RTTEST_CHECK_RET(g_hTest, RTSemRWIsWriteOwner(hSemRW) == false, false);
    }

    RTTEST_CHECK_RC_RET(g_hTest, RTSemRWDestroy(hSemRW), VINF_SUCCESS, false);
    RTTEST_CHECK_RC_RET(g_hTest, RTSemRWDestroy(NIL_RTSEMRW), VINF_SUCCESS, false);

    return true;
}
Exemplo n.º 7
0
static void Test4(unsigned cThreads, unsigned cSeconds, unsigned uWritePercent, bool fYield, bool fQuiet)
{
    unsigned i;
    uint64_t acIterations[32];
    RTTHREAD aThreads[RT_ELEMENTS(acIterations)];
    AssertRelease(cThreads <= RT_ELEMENTS(acIterations));

    RTTestSubF(g_hTest, "Test4 - %u threads, %u sec, %u%% writes, %syielding",
               cThreads, cSeconds, uWritePercent, fYield ? "" : "non-");

    /*
     * Init globals.
     */
    g_fYield = fYield;
    g_fQuiet = fQuiet;
    g_fTerminate = false;
    g_uWritePercent = uWritePercent;
    g_cConcurrentWriters = 0;
    g_cConcurrentReaders = 0;

    RTTEST_CHECK_RC_RETV(g_hTest, RTSemRWCreate(&g_hSemRW), VINF_SUCCESS);

    /*
     * Create the threads and let them block on the semrw.
     */
    RTTEST_CHECK_RC_RETV(g_hTest, RTSemRWRequestWrite(g_hSemRW, RT_INDEFINITE_WAIT), VINF_SUCCESS);

    for (i = 0; i < cThreads; i++)
    {
        acIterations[i] = 0;
        RTTEST_CHECK_RC_RETV(g_hTest, RTThreadCreateF(&aThreads[i], Test4Thread, &acIterations[i], 0,
                                                      RTTHREADTYPE_DEFAULT, RTTHREADFLAGS_WAITABLE,
                                                      "test-%u", i), VINF_SUCCESS);
    }

    /*
     * Do the test run.
     */
    uint32_t cErrorsBefore = RTTestErrorCount(g_hTest);
    uint64_t u64StartTS = RTTimeNanoTS();
    RTTEST_CHECK_RC(g_hTest, RTSemRWReleaseWrite(g_hSemRW), VINF_SUCCESS);
    RTThreadSleep(cSeconds * 1000);
    ASMAtomicWriteBool(&g_fTerminate, true);
    uint64_t ElapsedNS = RTTimeNanoTS() - u64StartTS;

    /*
     * Clean up the threads and semaphore.
     */
    for (i = 0; i < cThreads; i++)
        RTTEST_CHECK_RC(g_hTest, RTThreadWait(aThreads[i], 5000, NULL), VINF_SUCCESS);

    RTTEST_CHECK_MSG(g_hTest, g_cConcurrentWriters == 0, (g_hTest, "g_cConcurrentWriters=%u at end of test\n", g_cConcurrentWriters));
    RTTEST_CHECK_MSG(g_hTest, g_cConcurrentReaders == 0, (g_hTest, "g_cConcurrentReaders=%u at end of test\n", g_cConcurrentReaders));

    RTTEST_CHECK_RC(g_hTest, RTSemRWDestroy(g_hSemRW), VINF_SUCCESS);
    g_hSemRW = NIL_RTSEMRW;

    if (RTTestErrorCount(g_hTest) != cErrorsBefore)
        RTThreadSleep(100);

    /*
     * Collect and display the results.
     */
    uint64_t cItrTotal = acIterations[0];
    for (i = 1; i < cThreads; i++)
        cItrTotal += acIterations[i];

    uint64_t cItrNormal = cItrTotal / cThreads;
    uint64_t cItrMinOK = cItrNormal / 20; /* 5% */
    uint64_t cItrMaxDeviation = 0;
    for (i = 0; i < cThreads; i++)
    {
        uint64_t cItrDelta = RT_ABS((int64_t)(acIterations[i] - cItrNormal));
        if (acIterations[i] < cItrMinOK)
            RTTestFailed(g_hTest, "Thread %u did less than 5%% of the iterations - %llu (it) vs. %llu (5%%) - %llu%%\n",
                         i, acIterations[i], cItrMinOK, cItrDelta * 100 / cItrNormal);
        else if (cItrDelta > cItrNormal / 2)
            RTTestPrintf(g_hTest, RTTESTLVL_ALWAYS,
                         "Warning! Thread %u deviates by more than 50%% - %llu (it) vs. %llu (avg) - %llu%%\n",
                         i, acIterations[i], cItrNormal, cItrDelta * 100 / cItrNormal);
        if (cItrDelta > cItrMaxDeviation)
            cItrMaxDeviation = cItrDelta;

    }

    //RTTestPrintf(g_hTest, RTTESTLVL_ALWAYS,
    //             "Threads: %u  Total: %llu  Per Sec: %llu  Avg: %llu ns  Max dev: %llu%%\n",
    //             cThreads,
    //             cItrTotal,
    //             cItrTotal / cSeconds,
    //             ElapsedNS / cItrTotal,
    //             cItrMaxDeviation * 100 / cItrNormal
    //             );
    //
    RTTestValue(g_hTest, "Thruput", cItrTotal * UINT32_C(1000000000) / ElapsedNS, RTTESTUNIT_CALLS_PER_SEC);
    RTTestValue(g_hTest, "Max diviation", cItrMaxDeviation * 100 / cItrNormal, RTTESTUNIT_PCT);
}