| 1 | /* $Id: tstRTFileAio.cpp 82968 2020-02-04 10:35:17Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * IPRT Testcase - File Async I/O.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2006-2020 Oracle Corporation
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License (GPL) as published by the Free Software
|
|---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | *
|
|---|
| 17 | * The contents of this file may alternatively be used under the terms
|
|---|
| 18 | * of the Common Development and Distribution License Version 1.0
|
|---|
| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
|---|
| 20 | * VirtualBox OSE distribution, in which case the provisions of the
|
|---|
| 21 | * CDDL are applicable instead of those of the GPL.
|
|---|
| 22 | *
|
|---|
| 23 | * You may elect to license modified versions of this file under the
|
|---|
| 24 | * terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 25 | */
|
|---|
| 26 |
|
|---|
| 27 |
|
|---|
| 28 | /*********************************************************************************************************************************
|
|---|
| 29 | * Header Files *
|
|---|
| 30 | *********************************************************************************************************************************/
|
|---|
| 31 | #include <iprt/file.h>
|
|---|
| 32 |
|
|---|
| 33 | #include <iprt/err.h>
|
|---|
| 34 | #include <iprt/mem.h>
|
|---|
| 35 | #include <iprt/param.h>
|
|---|
| 36 | #include <iprt/string.h>
|
|---|
| 37 | #include <iprt/test.h>
|
|---|
| 38 |
|
|---|
| 39 |
|
|---|
| 40 | /*********************************************************************************************************************************
|
|---|
| 41 | * Defined Constants And Macros *
|
|---|
| 42 | *********************************************************************************************************************************/
|
|---|
| 43 | /** @todo make configurable through cmd line. */
|
|---|
| 44 | #define TSTFILEAIO_MAX_REQS_IN_FLIGHT 64
|
|---|
| 45 | #define TSTFILEAIO_BUFFER_SIZE (64*_1K)
|
|---|
| 46 |
|
|---|
| 47 |
|
|---|
| 48 | /*********************************************************************************************************************************
|
|---|
| 49 | * Global Variables *
|
|---|
| 50 | *********************************************************************************************************************************/
|
|---|
| 51 | static RTTEST g_hTest = NIL_RTTEST;
|
|---|
| 52 |
|
|---|
| 53 |
|
|---|
| 54 | void tstFileAioTestReadWriteBasic(RTFILE File, bool fWrite, void *pvTestBuf,
|
|---|
| 55 | size_t cbTestBuf, size_t cbTestFile, uint32_t cMaxReqsInFlight)
|
|---|
| 56 | {
|
|---|
| 57 | /* Allocate request array. */
|
|---|
| 58 | RTFILEAIOREQ *paReqs;
|
|---|
| 59 | paReqs = (PRTFILEAIOREQ)RTTestGuardedAllocHead(g_hTest, cMaxReqsInFlight * sizeof(RTFILEAIOREQ));
|
|---|
| 60 | RTTESTI_CHECK_RETV(paReqs);
|
|---|
| 61 | RT_BZERO(paReqs, cMaxReqsInFlight * sizeof(RTFILEAIOREQ));
|
|---|
| 62 |
|
|---|
| 63 | /* Allocate array holding pointer to data buffers. */
|
|---|
| 64 | void **papvBuf = (void **)RTTestGuardedAllocHead(g_hTest, cMaxReqsInFlight * sizeof(void *));
|
|---|
| 65 | RTTESTI_CHECK_RETV(papvBuf);
|
|---|
| 66 |
|
|---|
| 67 | /* Allocate the buffers*/
|
|---|
| 68 | for (unsigned i = 0; i < cMaxReqsInFlight; i++)
|
|---|
| 69 | {
|
|---|
| 70 | RTTESTI_CHECK_RC_OK_RETV(RTTestGuardedAlloc(g_hTest, cbTestBuf, PAGE_SIZE, true /*fHead*/, &papvBuf[i]));
|
|---|
| 71 | if (fWrite)
|
|---|
| 72 | memcpy(papvBuf[i], pvTestBuf, cbTestBuf);
|
|---|
| 73 | if (fWrite)
|
|---|
| 74 | memcpy(papvBuf[i], pvTestBuf, cbTestBuf);
|
|---|
| 75 | else
|
|---|
| 76 | RT_BZERO(papvBuf[i], cbTestBuf);
|
|---|
| 77 | }
|
|---|
| 78 |
|
|---|
| 79 | /* Allocate array holding completed requests. */
|
|---|
| 80 | RTFILEAIOREQ *paReqsCompleted;
|
|---|
| 81 | paReqsCompleted = (PRTFILEAIOREQ)RTTestGuardedAllocHead(g_hTest, cMaxReqsInFlight * sizeof(RTFILEAIOREQ));
|
|---|
| 82 | RTTESTI_CHECK_RETV(paReqsCompleted);
|
|---|
| 83 | RT_BZERO(paReqsCompleted, cMaxReqsInFlight * sizeof(RTFILEAIOREQ));
|
|---|
| 84 |
|
|---|
| 85 | /* Create a context and associate the file handle with it. */
|
|---|
| 86 | RTFILEAIOCTX hAioContext;
|
|---|
| 87 | RTTESTI_CHECK_RC_RETV(RTFileAioCtxCreate(&hAioContext, cMaxReqsInFlight, 0 /* fFlags */), VINF_SUCCESS);
|
|---|
| 88 | RTTESTI_CHECK_RC_RETV(RTFileAioCtxAssociateWithFile(hAioContext, File), VINF_SUCCESS);
|
|---|
| 89 |
|
|---|
| 90 | /* Initialize requests. */
|
|---|
| 91 | for (unsigned i = 0; i < cMaxReqsInFlight; i++)
|
|---|
| 92 | RTFileAioReqCreate(&paReqs[i]);
|
|---|
| 93 |
|
|---|
| 94 | RTFOFF off = 0;
|
|---|
| 95 | int cRuns = 0;
|
|---|
| 96 | uint64_t NanoTS = RTTimeNanoTS();
|
|---|
| 97 | size_t cbLeft = cbTestFile;
|
|---|
| 98 | while (cbLeft)
|
|---|
| 99 | {
|
|---|
| 100 | int rc;
|
|---|
| 101 | int cReqs = 0;
|
|---|
| 102 | for (unsigned i = 0; i < cMaxReqsInFlight; i++)
|
|---|
| 103 | {
|
|---|
| 104 | size_t cbTransfer = cbLeft < cbTestBuf ? cbLeft : cbTestBuf;
|
|---|
| 105 | if (!cbTransfer)
|
|---|
| 106 | break;
|
|---|
| 107 |
|
|---|
| 108 | if (fWrite)
|
|---|
| 109 | rc = RTFileAioReqPrepareWrite(paReqs[i], File, off, papvBuf[i],
|
|---|
| 110 | cbTransfer, papvBuf[i]);
|
|---|
| 111 | else
|
|---|
| 112 | rc = RTFileAioReqPrepareRead(paReqs[i], File, off, papvBuf[i],
|
|---|
| 113 | cbTransfer, papvBuf[i]);
|
|---|
| 114 | RTTESTI_CHECK_RC(rc, VINF_SUCCESS);
|
|---|
| 115 |
|
|---|
| 116 | cbLeft -= cbTransfer;
|
|---|
| 117 | off += cbTransfer;
|
|---|
| 118 | cReqs++;
|
|---|
| 119 | }
|
|---|
| 120 |
|
|---|
| 121 | rc = RTFileAioCtxSubmit(hAioContext, paReqs, cReqs);
|
|---|
| 122 | RTTESTI_CHECK_MSG(rc == VINF_SUCCESS, ("Failed to submit tasks after %d runs. rc=%Rrc\n", cRuns, rc));
|
|---|
| 123 | if (rc != VINF_SUCCESS)
|
|---|
| 124 | break;
|
|---|
| 125 |
|
|---|
| 126 | /* Wait */
|
|---|
| 127 | uint32_t cCompleted = 0;
|
|---|
| 128 | RTTESTI_CHECK_RC(rc = RTFileAioCtxWait(hAioContext, cReqs, RT_INDEFINITE_WAIT,
|
|---|
| 129 | paReqsCompleted, cMaxReqsInFlight, &cCompleted),
|
|---|
| 130 | VINF_SUCCESS);
|
|---|
| 131 | if (rc != VINF_SUCCESS)
|
|---|
| 132 | break;
|
|---|
| 133 |
|
|---|
| 134 | if (!fWrite)
|
|---|
| 135 | {
|
|---|
| 136 | for (uint32_t i = 0; i < cCompleted; i++)
|
|---|
| 137 | {
|
|---|
| 138 | /* Compare that we read the right stuff. */
|
|---|
| 139 | void *pvBuf = RTFileAioReqGetUser(paReqsCompleted[i]);
|
|---|
| 140 | RTTESTI_CHECK(pvBuf);
|
|---|
| 141 |
|
|---|
| 142 | size_t cbTransfered;
|
|---|
| 143 | RTTESTI_CHECK_RC(rc = RTFileAioReqGetRC(paReqsCompleted[i], &cbTransfered), VINF_SUCCESS);
|
|---|
| 144 | if (rc != VINF_SUCCESS)
|
|---|
| 145 | break;
|
|---|
| 146 | RTTESTI_CHECK_MSG(cbTransfered == cbTestBuf, ("cbTransfered=%zd\n", cbTransfered));
|
|---|
| 147 | RTTESTI_CHECK_RC_OK(rc = (memcmp(pvBuf, pvTestBuf, cbTestBuf) == 0 ? VINF_SUCCESS : VERR_BAD_EXE_FORMAT));
|
|---|
| 148 | if (rc != VINF_SUCCESS)
|
|---|
| 149 | break;
|
|---|
| 150 | memset(pvBuf, 0, cbTestBuf);
|
|---|
| 151 | }
|
|---|
| 152 | }
|
|---|
| 153 | cRuns++;
|
|---|
| 154 | if (RT_FAILURE(rc))
|
|---|
| 155 | break;
|
|---|
| 156 | }
|
|---|
| 157 |
|
|---|
| 158 | NanoTS = RTTimeNanoTS() - NanoTS;
|
|---|
| 159 | uint64_t SpeedKBs = (uint64_t)(cbTestFile / (NanoTS / 1000000000.0) / 1024);
|
|---|
| 160 | RTTestValue(g_hTest, "Throughput", SpeedKBs, RTTESTUNIT_KILOBYTES_PER_SEC);
|
|---|
| 161 |
|
|---|
| 162 | /* cleanup */
|
|---|
| 163 | for (unsigned i = 0; i < cMaxReqsInFlight; i++)
|
|---|
| 164 | RTTestGuardedFree(g_hTest, papvBuf[i]);
|
|---|
| 165 | RTTestGuardedFree(g_hTest, papvBuf);
|
|---|
| 166 | for (unsigned i = 0; i < cMaxReqsInFlight; i++)
|
|---|
| 167 | RTTESTI_CHECK_RC(RTFileAioReqDestroy(paReqs[i]), VINF_SUCCESS);
|
|---|
| 168 | RTTESTI_CHECK_RC(RTFileAioCtxDestroy(hAioContext), VINF_SUCCESS);
|
|---|
| 169 | RTTestGuardedFree(g_hTest, paReqs);
|
|---|
| 170 | }
|
|---|
| 171 |
|
|---|
| 172 | int main()
|
|---|
| 173 | {
|
|---|
| 174 | int rc = RTTestInitAndCreate("tstRTFileAio", &g_hTest);
|
|---|
| 175 | if (rc)
|
|---|
| 176 | return rc;
|
|---|
| 177 |
|
|---|
| 178 | /* Check if the API is available. */
|
|---|
| 179 | RTTestSub(g_hTest, "RTFileAioGetLimits");
|
|---|
| 180 | RTFILEAIOLIMITS AioLimits;
|
|---|
| 181 | RT_ZERO(AioLimits);
|
|---|
| 182 | RTTESTI_CHECK_RC(rc = RTFileAioGetLimits(&AioLimits), VINF_SUCCESS);
|
|---|
| 183 | if (RT_SUCCESS(rc))
|
|---|
| 184 | {
|
|---|
| 185 | RTTestSub(g_hTest, "Write");
|
|---|
| 186 | RTFILE hFile;
|
|---|
| 187 | RTFSTYPE enmType;
|
|---|
| 188 | bool fAsyncMayFail = false;
|
|---|
| 189 | rc = RTFsQueryType("tstFileAio#1.tst", &enmType);
|
|---|
| 190 | if ( RT_SUCCESS(rc)
|
|---|
| 191 | && enmType == RTFSTYPE_TMPFS)
|
|---|
| 192 | fAsyncMayFail = true;
|
|---|
| 193 | rc = RTFileOpen(&hFile, "tstFileAio#1.tst",
|
|---|
| 194 | RTFILE_O_READWRITE | RTFILE_O_CREATE_REPLACE | RTFILE_O_DENY_NONE | RTFILE_O_ASYNC_IO);
|
|---|
| 195 | RTTESTI_CHECK( rc == VINF_SUCCESS
|
|---|
| 196 | || ((rc == VERR_ACCESS_DENIED || rc == VERR_INVALID_PARAMETER) && fAsyncMayFail));
|
|---|
| 197 | if (RT_SUCCESS(rc))
|
|---|
| 198 | {
|
|---|
| 199 | uint8_t *pbTestBuf = (uint8_t *)RTTestGuardedAllocTail(g_hTest, TSTFILEAIO_BUFFER_SIZE);
|
|---|
| 200 | for (unsigned i = 0; i < TSTFILEAIO_BUFFER_SIZE; i++)
|
|---|
| 201 | pbTestBuf[i] = i % 256;
|
|---|
| 202 |
|
|---|
| 203 | uint32_t cReqsMax = AioLimits.cReqsOutstandingMax < TSTFILEAIO_MAX_REQS_IN_FLIGHT
|
|---|
| 204 | ? AioLimits.cReqsOutstandingMax
|
|---|
| 205 | : TSTFILEAIO_MAX_REQS_IN_FLIGHT;
|
|---|
| 206 |
|
|---|
| 207 | /* Basic write test. */
|
|---|
| 208 | RTTestIPrintf(RTTESTLVL_ALWAYS, "Preparing test file, this can take some time and needs quite a bit of harddisk space...\n");
|
|---|
| 209 | tstFileAioTestReadWriteBasic(hFile, true /*fWrite*/, pbTestBuf, TSTFILEAIO_BUFFER_SIZE, 100*_1M, cReqsMax);
|
|---|
| 210 |
|
|---|
| 211 | /* Reopen the file before doing the next test. */
|
|---|
| 212 | RTTESTI_CHECK_RC(RTFileClose(hFile), VINF_SUCCESS);
|
|---|
| 213 | if (RTTestErrorCount(g_hTest) == 0)
|
|---|
| 214 | {
|
|---|
| 215 | RTTestSub(g_hTest, "Read/Write");
|
|---|
| 216 | RTTESTI_CHECK_RC(rc = RTFileOpen(&hFile, "tstFileAio#1.tst",
|
|---|
| 217 | RTFILE_O_READWRITE | RTFILE_O_OPEN | RTFILE_O_DENY_NONE | RTFILE_O_ASYNC_IO),
|
|---|
| 218 | VINF_SUCCESS);
|
|---|
| 219 | if (RT_SUCCESS(rc))
|
|---|
| 220 | {
|
|---|
| 221 | tstFileAioTestReadWriteBasic(hFile, false /*fWrite*/, pbTestBuf, TSTFILEAIO_BUFFER_SIZE, 100*_1M, cReqsMax);
|
|---|
| 222 | RTFileClose(hFile);
|
|---|
| 223 | }
|
|---|
| 224 | }
|
|---|
| 225 |
|
|---|
| 226 | /* Cleanup */
|
|---|
| 227 | RTFileDelete("tstFileAio#1.tst");
|
|---|
| 228 | }
|
|---|
| 229 | else
|
|---|
| 230 | RTTestSkipped(g_hTest, "rc=%Rrc", rc);
|
|---|
| 231 | }
|
|---|
| 232 |
|
|---|
| 233 | /*
|
|---|
| 234 | * Summary
|
|---|
| 235 | */
|
|---|
| 236 | return RTTestSummaryAndDestroy(g_hTest);
|
|---|
| 237 | }
|
|---|
| 238 |
|
|---|
