From f215e02bf85f68d3a6106c2a1f4f7f063f819064 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:17:27 +0200 Subject: Adding upstream version 7.0.14-dfsg. Signed-off-by: Daniel Baumann --- .../Support/testcase/tstSupTscDelta.cpp | 235 +++++++++++++++++++++ 1 file changed, 235 insertions(+) create mode 100644 src/VBox/HostDrivers/Support/testcase/tstSupTscDelta.cpp (limited to 'src/VBox/HostDrivers/Support/testcase/tstSupTscDelta.cpp') diff --git a/src/VBox/HostDrivers/Support/testcase/tstSupTscDelta.cpp b/src/VBox/HostDrivers/Support/testcase/tstSupTscDelta.cpp new file mode 100644 index 00000000..4fe0d8d4 --- /dev/null +++ b/src/VBox/HostDrivers/Support/testcase/tstSupTscDelta.cpp @@ -0,0 +1,235 @@ +/* $Id: tstSupTscDelta.cpp $ */ +/** @file + * SUP Testcase - Global Info Page TSC Delta Measurement Utility. + */ + +/* + * Copyright (C) 2015-2023 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 . + * + * 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 +#include +#include +#include +#include +#include +#include +#include + + + +int main(int argc, char **argv) +{ + RTTEST hTest; + RTEXITCODE rcExit = RTTestInitExAndCreate(argc, &argv, 0 /*fRtInit*/, "tstSupTscDelta", &hTest); + if (rcExit != RTEXITCODE_SUCCESS) + return rcExit; + + /* + * Parse args + */ + static const RTGETOPTDEF g_aOptions[] = + { + { "--iterations", 'i', RTGETOPT_REQ_INT32 }, + { "--delay", 'd', RTGETOPT_REQ_INT32 }, + }; + + uint32_t cIterations = 0; /* Currently 0 so that it doesn't upset testing. */ + uint32_t cMsSleepBetweenIterations = 10; + + int ch; + RTGETOPTUNION ValueUnion; + RTGETOPTSTATE GetState; + RTGetOptInit(&GetState, argc, argv, g_aOptions, RT_ELEMENTS(g_aOptions), 1, RTGETOPTINIT_FLAGS_NO_STD_OPTS); + while ((ch = RTGetOpt(&GetState, &ValueUnion))) + { + switch (ch) + { + case 'd': + cMsSleepBetweenIterations = ValueUnion.u32; + break; + case 'i': + cIterations = ValueUnion.u32; + break; + + default: + return RTGetOptPrintError(ch, &ValueUnion); + } + } + if (!cIterations) + return RTTestSkipAndDestroy(hTest, "Nothing to do. The --iterations argument is 0 or not given."); + + /* + * Init + */ + PSUPDRVSESSION pSession = NIL_RTR0PTR; + int rc = SUPR3Init(&pSession); + if (RT_SUCCESS(rc)) + { + PSUPGLOBALINFOPAGE pGip = g_pSUPGlobalInfoPage; + if (pGip) + { + if (pGip->enmUseTscDelta < SUPGIPUSETSCDELTA_PRACTICALLY_ZERO) + return RTTestSkipAndDestroy(hTest, "No deltas to play with: enmUseTscDelta=%d\n", pGip->enmUseTscDelta); + + /* + * Init stats. + */ + struct + { + int64_t iLowest; + int64_t iHighest; + int64_t iTotal; + uint64_t uAbsMin; + uint64_t uAbsMax; + uint64_t uAbsTotal; + } aCpuStats[RTCPUSET_MAX_CPUS]; + RT_ZERO(aCpuStats); + for (uint32_t i = 0; i < pGip->cCpus; i++) + { + aCpuStats[i].iLowest = INT64_MAX; + aCpuStats[i].iHighest = INT64_MIN; + aCpuStats[i].uAbsMin = UINT64_MAX; + } + + /* + * Do the work. + */ + for (uint32_t iIteration = 0; ; iIteration++) + { + /* + * Display the current deltas and gather statistics. + */ + RTPrintf("tstSupTscDelta: Iteration #%u results:", iIteration); + for (uint32_t iCpu = 0; iCpu < pGip->cCpus; iCpu++) + { + int64_t iTscDelta = pGip->aCPUs[iCpu].i64TSCDelta; + + /* print */ + if ((iCpu % 4) == 0) + RTPrintf("\ntstSupTscDelta:"); + if (pGip->aCPUs[iCpu].enmState != SUPGIPCPUSTATE_ONLINE) + RTPrintf(" %02x: offline ", iCpu); + else if (iTscDelta != INT64_MAX) + RTPrintf(" %02x: %-12lld", iCpu, iTscDelta); + else + RTPrintf(" %02x: INT64_MAX ", iCpu); + + /* stats */ + if ( iTscDelta != INT64_MAX + && pGip->aCPUs[iCpu].enmState == SUPGIPCPUSTATE_ONLINE) + { + if (aCpuStats[iCpu].iLowest > iTscDelta) + aCpuStats[iCpu].iLowest = iTscDelta; + if (aCpuStats[iCpu].iHighest < iTscDelta) + aCpuStats[iCpu].iHighest = iTscDelta; + aCpuStats[iCpu].iTotal += iTscDelta; + + uint64_t uAbsTscDelta = iTscDelta >= 0 ? (uint64_t)iTscDelta : (uint64_t)-iTscDelta; + if (aCpuStats[iCpu].uAbsMin > uAbsTscDelta) + aCpuStats[iCpu].uAbsMin = uAbsTscDelta; + if (aCpuStats[iCpu].uAbsMax < uAbsTscDelta) + aCpuStats[iCpu].uAbsMax = uAbsTscDelta; + aCpuStats[iCpu].uAbsTotal += uAbsTscDelta; + } + } + if (((pGip->cCpus - 1) % 4) != 0) + RTPrintf("\n"); + + /* + * Done? + */ + if (iIteration + 1 >= cIterations) + break; + + /* + * Force a new measurement. + */ + RTThreadSleep(cMsSleepBetweenIterations); + for (uint32_t iCpu = 0; iCpu < pGip->cCpus; iCpu++) + if (pGip->aCPUs[iCpu].enmState == SUPGIPCPUSTATE_ONLINE) + { + rc = SUPR3TscDeltaMeasure(pGip->aCPUs[iCpu].idCpu, false /*fAsync*/, true /*fForce*/, 64, 16 /*ms*/); + if (RT_FAILURE(rc)) + RTTestFailed(hTest, "SUPR3TscDeltaMeasure failed on %#x: %Rrc", pGip->aCPUs[iCpu].idCpu, rc); + } + } + + /* + * Display statistics that we've gathered. + */ + RTPrintf("tstSupTscDelta: Results:\n"); + int64_t iLowest = INT64_MAX; + int64_t iHighest = INT64_MIN; + int64_t iTotal = 0; + uint32_t cTotal = 0; + for (uint32_t iCpu = 0; iCpu < pGip->cCpus; iCpu++) + { + if (pGip->aCPUs[iCpu].enmState != SUPGIPCPUSTATE_ONLINE) + RTPrintf("tstSupTscDelta: %02x: offline\n", iCpu); + else + { + RTPrintf("tstSupTscDelta: %02x: lowest=%-12lld highest=%-12lld average=%-12lld spread=%-12lld\n", + iCpu, + aCpuStats[iCpu].iLowest, + aCpuStats[iCpu].iHighest, + aCpuStats[iCpu].iTotal / cIterations, + aCpuStats[iCpu].iHighest - aCpuStats[iCpu].iLowest); + RTPrintf( "tstSupTscDelta: absmin=%-12llu absmax=%-12llu absavg=%-12llu idCpu=%#4x idApic=%#4x\n", + aCpuStats[iCpu].uAbsMin, + aCpuStats[iCpu].uAbsMax, + aCpuStats[iCpu].uAbsTotal / cIterations, + pGip->aCPUs[iCpu].idCpu, + pGip->aCPUs[iCpu].idApic); + if (iLowest > aCpuStats[iCpu].iLowest) + iLowest = aCpuStats[iCpu].iLowest; + if (iHighest < aCpuStats[iCpu].iHighest) + iHighest = aCpuStats[iCpu].iHighest; + iTotal += aCpuStats[iCpu].iHighest; + cTotal += cIterations; + } + } + RTPrintf("tstSupTscDelta: all: lowest=%-12lld highest=%-12lld average=%-12lld spread=%-12lld\n", + iLowest, iHighest, iTotal / cTotal, iHighest - iLowest); + } + else + RTTestFailed(hTest, "g_pSUPGlobalInfoPage is NULL"); + + SUPR3Term(false /*fForced*/); + } + else + RTTestFailed(hTest, "SUPR3Init failed: %Rrc", rc); + return RTTestSummaryAndDestroy(hTest); +} + -- cgit v1.2.3