int main() { unsigned cErrors = 0; int i; RTR3InitExeNoArguments(RTR3INIT_FLAGS_SUPLIB); RTPrintf("tstTime-2: TESTING...\n"); /* * RTNanoTimeTS() shall never return something which * is less or equal to the return of the previous call. */ RTTimeSystemNanoTS(); RTTimeNanoTS(); RTThreadYield(); uint64_t u64RTStartTS = RTTimeNanoTS(); uint64_t u64OSStartTS = RTTimeSystemNanoTS(); #define NUMBER_OF_CALLS (100*_1M) for (i = 0; i < NUMBER_OF_CALLS; i++) RTTimeNanoTS(); uint64_t u64RTElapsedTS = RTTimeNanoTS(); uint64_t u64OSElapsedTS = RTTimeSystemNanoTS(); u64RTElapsedTS -= u64RTStartTS; u64OSElapsedTS -= u64OSStartTS; int64_t i64Diff = u64OSElapsedTS >= u64RTElapsedTS ? u64OSElapsedTS - u64RTElapsedTS : u64RTElapsedTS - u64OSElapsedTS; if (i64Diff > (int64_t)(u64OSElapsedTS / 1000)) { RTPrintf("tstTime-2: error: total time differs too much! u64OSElapsedTS=%#llx u64RTElapsedTS=%#llx delta=%lld\n", u64OSElapsedTS, u64RTElapsedTS, u64OSElapsedTS - u64RTElapsedTS); cErrors++; } else RTPrintf("tstTime-2: total time difference: u64OSElapsedTS=%#llx u64RTElapsedTS=%#llx delta=%lld\n", u64OSElapsedTS, u64RTElapsedTS, u64OSElapsedTS - u64RTElapsedTS); RTPrintf("tstTime-2: %u calls to RTTimeNanoTS\n", NUMBER_OF_CALLS); #if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) /** @todo This isn't really x86 or AMD64 specific... */ RTPrintf("tstTime-2: RTTimeDbgSteps -> %u (%d ppt)\n", RTTimeDbgSteps(), ((uint64_t)RTTimeDbgSteps() * 1000) / NUMBER_OF_CALLS); RTPrintf("tstTime-2: RTTimeDbgExpired -> %u (%d ppt)\n", RTTimeDbgExpired(), ((uint64_t)RTTimeDbgExpired() * 1000) / NUMBER_OF_CALLS); RTPrintf("tstTime-2: RTTimeDbgBad -> %u (%d ppt)\n", RTTimeDbgBad(), ((uint64_t)RTTimeDbgBad() * 1000) / NUMBER_OF_CALLS); RTPrintf("tstTime-2: RTTimeDbgRaces -> %u (%d ppt)\n", RTTimeDbgRaces(), ((uint64_t)RTTimeDbgRaces() * 1000) / NUMBER_OF_CALLS); #endif if (!cErrors) RTPrintf("tstTime-2: SUCCESS\n"); else RTPrintf("tstTime-2: FAILURE - %d errors\n", cErrors); return !!cErrors; }
int main() { /* * Init. */ RTTEST hTest; RTEXITCODE rcExit = RTTestInitExAndCreate(0, NULL, RTR3INIT_FLAGS_SUPLIB, "tstRTTime", &hTest); if (rcExit != RTEXITCODE_SUCCESS) return rcExit; RTTestBanner(hTest); /* * RTNanoTimeTS() shall never return something which * is less or equal to the return of the previous call. */ RTTimeSystemNanoTS(); RTTimeNanoTS(); RTThreadYield(); uint64_t u64RTStartTS = RTTimeNanoTS(); uint64_t u64OSStartTS = RTTimeSystemNanoTS(); uint32_t i; uint64_t u64Prev = RTTimeNanoTS(); for (i = 0; i < 100*_1M; i++) { uint64_t u64 = RTTimeNanoTS(); if (u64 <= u64Prev) { /** @todo wrapping detection. */ RTTestFailed(hTest, "i=%#010x u64=%#llx u64Prev=%#llx (1)\n", i, u64, u64Prev); if (RTTestErrorCount(hTest) >= 256) break; RTThreadYield(); u64 = RTTimeNanoTS(); } else if (u64 - u64Prev > 1000000000 /* 1sec */) { RTTestFailed(hTest, "i=%#010x u64=%#llx u64Prev=%#llx delta=%lld\n", i, u64, u64Prev, u64 - u64Prev); if (RTTestErrorCount(hTest) >= 256) break; RTThreadYield(); u64 = RTTimeNanoTS(); } if (!(i & (_1M*2 - 1))) { RTTestPrintf(hTest, RTTESTLVL_INFO, "i=%#010x u64=%#llx u64Prev=%#llx delta=%lld\n", i, u64, u64Prev, u64 - u64Prev); RTThreadYield(); u64 = RTTimeNanoTS(); } u64Prev = u64; } RTTimeSystemNanoTS(); RTTimeNanoTS(); RTThreadYield(); uint64_t u64RTElapsedTS = RTTimeNanoTS(); uint64_t u64OSElapsedTS = RTTimeSystemNanoTS(); u64RTElapsedTS -= u64RTStartTS; u64OSElapsedTS -= u64OSStartTS; int64_t i64Diff = u64OSElapsedTS >= u64RTElapsedTS ? u64OSElapsedTS - u64RTElapsedTS : u64RTElapsedTS - u64OSElapsedTS; if (i64Diff > (int64_t)(u64OSElapsedTS / 1000)) RTTestFailed(hTest, "total time differs too much! u64OSElapsedTS=%#llx u64RTElapsedTS=%#llx delta=%lld\n", u64OSElapsedTS, u64RTElapsedTS, u64OSElapsedTS - u64RTElapsedTS); else { if (u64OSElapsedTS >= u64RTElapsedTS) RTTestValue(hTest, "Total time delta", u64OSElapsedTS - u64RTElapsedTS, RTTESTUNIT_NS); else RTTestValue(hTest, "Total time delta", u64RTElapsedTS - u64OSElapsedTS, RTTESTUNIT_NS); RTTestPrintf(hTest, RTTESTLVL_INFO, "total time difference: u64OSElapsedTS=%#llx u64RTElapsedTS=%#llx delta=%lld\n", u64OSElapsedTS, u64RTElapsedTS, u64OSElapsedTS - u64RTElapsedTS); } #if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) /** @todo This isn't really x86 or AMD64 specific... */ RTTestValue(hTest, "RTTimeDbgSteps", RTTimeDbgSteps(), RTTESTUNIT_OCCURRENCES); RTTestValue(hTest, "RTTimeDbgSteps pp", ((uint64_t)RTTimeDbgSteps() * 1000) / i, RTTESTUNIT_PP1K); RTTestValue(hTest, "RTTimeDbgExpired", RTTimeDbgExpired(), RTTESTUNIT_OCCURRENCES); RTTestValue(hTest, "RTTimeDbgExpired pp", ((uint64_t)RTTimeDbgExpired() * 1000) / i, RTTESTUNIT_PP1K); RTTestValue(hTest, "RTTimeDbgBad", RTTimeDbgBad(), RTTESTUNIT_OCCURRENCES); RTTestValue(hTest, "RTTimeDbgBad pp", ((uint64_t)RTTimeDbgBad() * 1000) / i, RTTESTUNIT_PP1K); RTTestValue(hTest, "RTTimeDbgRaces", RTTimeDbgRaces(), RTTESTUNIT_OCCURRENCES); RTTestValue(hTest, "RTTimeDbgRaces pp", ((uint64_t)RTTimeDbgRaces() * 1000) / i, RTTESTUNIT_PP1K); #endif return RTTestSummaryAndDestroy(hTest); }