| 1 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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| 2 | /* ***** BEGIN LICENSE BLOCK *****
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| 3 | * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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| 4 | *
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| 5 | * The contents of this file are subject to the Mozilla Public License Version
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| 6 | * 1.1 (the "License"); you may not use this file except in compliance with
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| 7 | * the License. You may obtain a copy of the License at
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| 8 | * http://www.mozilla.org/MPL/
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| 9 | *
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| 10 | * Software distributed under the License is distributed on an "AS IS" basis,
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| 11 | * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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| 12 | * for the specific language governing rights and limitations under the
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| 13 | * License.
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| 14 | *
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| 15 | * The Original Code is the Netscape Portable Runtime (NSPR).
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| 16 | *
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| 17 | * The Initial Developer of the Original Code is
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| 18 | * Netscape Communications Corporation.
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| 19 | * Portions created by the Initial Developer are Copyright (C) 1998-2000
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| 20 | * the Initial Developer. All Rights Reserved.
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| 21 | *
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| 22 | * Contributor(s):
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| 23 | *
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| 24 | * Alternatively, the contents of this file may be used under the terms of
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| 25 | * either the GNU General Public License Version 2 or later (the "GPL"), or
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| 26 | * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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| 27 | * in which case the provisions of the GPL or the LGPL are applicable instead
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| 28 | * of those above. If you wish to allow use of your version of this file only
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| 29 | * under the terms of either the GPL or the LGPL, and not to allow others to
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| 30 | * use your version of this file under the terms of the MPL, indicate your
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| 31 | * decision by deleting the provisions above and replace them with the notice
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| 32 | * and other provisions required by the GPL or the LGPL. If you do not delete
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| 33 | * the provisions above, a recipient may use your version of this file under
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| 34 | * the terms of any one of the MPL, the GPL or the LGPL.
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| 35 | *
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| 36 | * ***** END LICENSE BLOCK ***** */
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| 37 |
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| 38 | #include "nspr.h"
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| 39 | #include "plgetopt.h"
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| 40 |
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| 41 | #include <stdio.h>
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| 42 | #include <stdlib.h>
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| 43 | #include <string.h>
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| 44 |
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| 45 | int _debug_on = 0;
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| 46 | #define DPRINTF(arg) if (_debug_on) printf arg
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| 47 |
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| 48 | #ifdef XP_MAC
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| 49 | #include "prlog.h"
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| 50 | #include "prsem.h"
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| 51 | #define printf PR_LogPrint
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| 52 | extern void SetupMacPrintfLog(char *logFile);
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| 53 | #else
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| 54 | #include "obsolete/prsem.h"
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| 55 | #endif
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| 56 |
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| 57 | PRLock *lock;
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| 58 | PRMonitor *mon;
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| 59 | PRMonitor *mon2;
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| 60 |
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| 61 | #define DEFAULT_COUNT 1000
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| 62 |
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| 63 | PRInt32 count;
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| 64 |
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| 65 | static void nop(int a, int b, int c)
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| 66 | {
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| 67 | }
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| 68 |
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| 69 | static void LocalProcedureCall(void)
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| 70 | {
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| 71 | PRInt32 i;
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| 72 |
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| 73 | for (i = 0; i < count; i++) {
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| 74 | nop(i, i, 5);
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| 75 | }
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| 76 | }
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| 77 |
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| 78 | static void DLLProcedureCall(void)
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| 79 | {
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| 80 | PRInt32 i;
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| 81 | PRThreadState state;
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| 82 | PRThread *self = PR_CurrentThread();
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| 83 |
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| 84 | for (i = 0; i < count; i++) {
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| 85 | state = PR_GetThreadState(self);
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| 86 | }
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| 87 | }
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| 88 |
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| 89 | static void Now(void)
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| 90 | {
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| 91 | PRInt32 i;
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| 92 | PRTime time;
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| 93 |
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| 94 | for (i = 0; i < count; i++) {
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| 95 | time = PR_Now();
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| 96 | }
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| 97 | }
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| 98 |
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| 99 | static void Interval(void)
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| 100 | {
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| 101 | PRInt32 i;
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| 102 | PRIntervalTime time;
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| 103 |
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| 104 | for (i = 0; i < count; i++) {
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| 105 | time = PR_IntervalNow();
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| 106 | }
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| 107 | }
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| 108 |
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| 109 | static void IdleLock(void)
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| 110 | {
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| 111 | PRInt32 i;
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| 112 |
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| 113 | for (i = 0; i < count; i++) {
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| 114 | PR_Lock(lock);
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| 115 | PR_Unlock(lock);
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| 116 | }
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| 117 | }
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| 118 |
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| 119 | static void IdleMonitor(void)
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| 120 | {
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| 121 | PRInt32 i;
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| 122 |
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| 123 | for (i = 0; i < count; i++) {
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| 124 | PR_EnterMonitor(mon);
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| 125 | PR_ExitMonitor(mon);
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| 126 | }
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| 127 | }
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| 128 |
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| 129 | static void IdleCMonitor(void)
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| 130 | {
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| 131 | PRInt32 i;
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| 132 |
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| 133 | for (i = 0; i < count; i++) {
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| 134 | PR_CEnterMonitor((void*)7);
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| 135 | PR_CExitMonitor((void*)7);
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| 136 | }
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| 137 | }
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| 138 |
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| 139 | /************************************************************************/
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| 140 |
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| 141 | static void PR_CALLBACK dull(void *arg)
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| 142 | {
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| 143 | }
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| 144 |
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| 145 | static void CDThread(void)
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| 146 | {
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| 147 | PRInt32 i;
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| 148 | int num_threads = count;
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| 149 |
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| 150 | /*
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| 151 | * Cannot create too many threads
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| 152 | */
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| 153 | if (num_threads > 1000)
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| 154 | num_threads = 1000;
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| 155 |
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| 156 | for (i = 0; i < num_threads; i++) {
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| 157 | PRThread *t = PR_CreateThread(PR_USER_THREAD,
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| 158 | dull, 0,
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| 159 | PR_PRIORITY_NORMAL,
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| 160 | PR_LOCAL_THREAD,
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| 161 | PR_UNJOINABLE_THREAD,
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| 162 | 0);
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| 163 | if (NULL == t) {
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| 164 | fprintf(stderr, "CDThread: cannot create thread %3d\n", i);
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| 165 | } else {
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| 166 | DPRINTF(("CDThread: created thread %3d \n",i));
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| 167 | }
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| 168 | PR_Sleep(0);
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| 169 | }
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| 170 | }
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| 171 |
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| 172 | static int alive;
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| 173 | static int cxq;
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| 174 |
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| 175 | static void PR_CALLBACK CXReader(void *arg)
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| 176 | {
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| 177 | PRInt32 i, n;
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| 178 |
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| 179 | PR_EnterMonitor(mon);
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| 180 | n = count / 2;
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| 181 | for (i = 0; i < n; i++) {
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| 182 | while (cxq == 0) {
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| 183 | DPRINTF(("CXReader: thread = 0x%lx waiting\n",
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| 184 | PR_GetCurrentThread()));
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| 185 | PR_Wait(mon, PR_INTERVAL_NO_TIMEOUT);
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| 186 | }
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| 187 | --cxq;
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| 188 | PR_Notify(mon);
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| 189 | }
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| 190 | PR_ExitMonitor(mon);
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| 191 |
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| 192 | PR_EnterMonitor(mon2);
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| 193 | --alive;
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| 194 | PR_Notify(mon2);
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| 195 | PR_ExitMonitor(mon2);
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| 196 | DPRINTF(("CXReader: thread = 0x%lx exiting\n", PR_GetCurrentThread()));
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| 197 | }
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| 198 |
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| 199 | static void PR_CALLBACK CXWriter(void *arg)
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| 200 | {
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| 201 | PRInt32 i, n;
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| 202 |
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| 203 | PR_EnterMonitor(mon);
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| 204 | n = count / 2;
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| 205 | for (i = 0; i < n; i++) {
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| 206 | while (cxq == 1) {
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| 207 | DPRINTF(("CXWriter: thread = 0x%lx waiting\n",
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| 208 | PR_GetCurrentThread()));
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| 209 | PR_Wait(mon, PR_INTERVAL_NO_TIMEOUT);
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| 210 | }
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| 211 | ++cxq;
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| 212 | PR_Notify(mon);
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| 213 | }
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| 214 | PR_ExitMonitor(mon);
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| 215 |
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| 216 | PR_EnterMonitor(mon2);
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| 217 | --alive;
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| 218 | PR_Notify(mon2);
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| 219 | PR_ExitMonitor(mon2);
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| 220 | DPRINTF(("CXWriter: thread = 0x%lx exiting\n", PR_GetCurrentThread()));
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| 221 | }
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| 222 |
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| 223 | static void ContextSwitch(PRThreadScope scope1, PRThreadScope scope2)
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| 224 | {
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| 225 | PRThread *t1, *t2;
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| 226 |
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| 227 | PR_EnterMonitor(mon2);
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| 228 | alive = 2;
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| 229 | cxq = 0;
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| 230 |
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| 231 | t1 = PR_CreateThread(PR_USER_THREAD,
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| 232 | CXReader, 0,
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| 233 | PR_PRIORITY_NORMAL,
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| 234 | scope1,
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| 235 | PR_UNJOINABLE_THREAD,
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| 236 | 0);
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| 237 | if (NULL == t1) {
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| 238 | fprintf(stderr, "ContextSwitch: cannot create thread\n");
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| 239 | } else {
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| 240 | DPRINTF(("ContextSwitch: created %s thread = 0x%lx\n",
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| 241 | (scope1 == PR_GLOBAL_THREAD ?
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| 242 | "PR_GLOBAL_THREAD" : "PR_LOCAL_THREAD"),
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| 243 | t1));
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| 244 | }
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| 245 | t2 = PR_CreateThread(PR_USER_THREAD,
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| 246 | CXWriter, 0,
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| 247 | PR_PRIORITY_NORMAL,
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| 248 | scope2,
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| 249 | PR_UNJOINABLE_THREAD,
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| 250 | 0);
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| 251 | if (NULL == t2) {
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| 252 | fprintf(stderr, "ContextSwitch: cannot create thread\n");
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| 253 | } else {
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| 254 | DPRINTF(("ContextSwitch: created %s thread = 0x%lx\n",
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| 255 | (scope2 == PR_GLOBAL_THREAD ?
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| 256 | "PR_GLOBAL_THREAD" : "PR_LOCAL_THREAD"),
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| 257 | t2));
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| 258 | }
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| 259 |
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| 260 | /* Wait for both of the threads to exit */
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| 261 | while (alive) {
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| 262 | PR_Wait(mon2, PR_INTERVAL_NO_TIMEOUT);
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| 263 | }
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| 264 | PR_ExitMonitor(mon2);
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| 265 | }
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| 266 |
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| 267 | static void ContextSwitchUU(void)
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| 268 | {
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| 269 | ContextSwitch(PR_LOCAL_THREAD, PR_LOCAL_THREAD);
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| 270 | }
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| 271 |
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| 272 | static void ContextSwitchUK(void)
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| 273 | {
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| 274 | ContextSwitch(PR_LOCAL_THREAD, PR_GLOBAL_THREAD);
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| 275 | }
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| 276 |
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| 277 | static void ContextSwitchKU(void)
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| 278 | {
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| 279 | ContextSwitch(PR_GLOBAL_THREAD, PR_LOCAL_THREAD);
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| 280 | }
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| 281 |
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| 282 | static void ContextSwitchKK(void)
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| 283 | {
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| 284 | ContextSwitch(PR_GLOBAL_THREAD, PR_GLOBAL_THREAD);
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| 285 | }
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| 286 |
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| 287 | /************************************************************************/
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| 288 |
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| 289 | static void PR_CALLBACK SemaThread(void *argSema)
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| 290 | {
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| 291 | PRSemaphore **sem = (PRSemaphore **)argSema;
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| 292 | PRInt32 i, n;
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| 293 |
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| 294 | n = count / 2;
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| 295 | for (i = 0; i < n; i++) {
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| 296 | DPRINTF(("SemaThread: thread = 0x%lx waiting on sem = 0x%lx\n",
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| 297 | PR_GetCurrentThread(), sem[0]));
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| 298 | PR_WaitSem(sem[0]);
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| 299 | DPRINTF(("SemaThread: thread = 0x%lx posting on sem = 0x%lx\n",
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| 300 | PR_GetCurrentThread(), sem[1]));
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| 301 | PR_PostSem(sem[1]);
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| 302 | }
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| 303 |
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| 304 | PR_EnterMonitor(mon2);
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| 305 | --alive;
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| 306 | PR_Notify(mon2);
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| 307 | PR_ExitMonitor(mon2);
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| 308 | DPRINTF(("SemaThread: thread = 0x%lx exiting\n", PR_GetCurrentThread()));
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| 309 | }
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| 310 |
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| 311 | static PRSemaphore *sem_set1[2];
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| 312 | static PRSemaphore *sem_set2[2];
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| 313 |
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| 314 | static void SemaContextSwitch(PRThreadScope scope1, PRThreadScope scope2)
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| 315 | {
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| 316 | PRThread *t1, *t2;
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| 317 | sem_set1[0] = PR_NewSem(1);
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| 318 | sem_set1[1] = PR_NewSem(0);
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| 319 | sem_set2[0] = sem_set1[1];
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| 320 | sem_set2[1] = sem_set1[0];
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| 321 |
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| 322 | PR_EnterMonitor(mon2);
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| 323 | alive = 2;
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| 324 | cxq = 0;
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| 325 |
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| 326 | t1 = PR_CreateThread(PR_USER_THREAD,
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| 327 | SemaThread,
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| 328 | sem_set1,
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| 329 | PR_PRIORITY_NORMAL,
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| 330 | scope1,
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| 331 | PR_UNJOINABLE_THREAD,
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| 332 | 0);
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| 333 | if (NULL == t1) {
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| 334 | fprintf(stderr, "SemaContextSwitch: cannot create thread\n");
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| 335 | } else {
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| 336 | DPRINTF(("SemaContextSwitch: created %s thread = 0x%lx\n",
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| 337 | (scope1 == PR_GLOBAL_THREAD ?
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| 338 | "PR_GLOBAL_THREAD" : "PR_LOCAL_THREAD"),
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| 339 | t1));
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| 340 | }
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| 341 | t2 = PR_CreateThread(PR_USER_THREAD,
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| 342 | SemaThread,
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| 343 | sem_set2,
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| 344 | PR_PRIORITY_NORMAL,
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| 345 | scope2,
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| 346 | PR_UNJOINABLE_THREAD,
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| 347 | 0);
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| 348 | if (NULL == t2) {
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| 349 | fprintf(stderr, "SemaContextSwitch: cannot create thread\n");
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| 350 | } else {
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| 351 | DPRINTF(("SemaContextSwitch: created %s thread = 0x%lx\n",
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| 352 | (scope2 == PR_GLOBAL_THREAD ?
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| 353 | "PR_GLOBAL_THREAD" : "PR_LOCAL_THREAD"),
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| 354 | t2));
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| 355 | }
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| 356 |
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| 357 | /* Wait for both of the threads to exit */
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| 358 | while (alive) {
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| 359 | PR_Wait(mon2, PR_INTERVAL_NO_TIMEOUT);
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| 360 | }
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| 361 | PR_ExitMonitor(mon2);
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| 362 |
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| 363 | PR_DestroySem(sem_set1[0]);
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| 364 | PR_DestroySem(sem_set1[1]);
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| 365 | }
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| 366 |
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| 367 | static void SemaContextSwitchUU(void)
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| 368 | {
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| 369 | SemaContextSwitch(PR_LOCAL_THREAD, PR_LOCAL_THREAD);
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| 370 | }
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| 371 |
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| 372 | static void SemaContextSwitchUK(void)
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| 373 | {
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| 374 | SemaContextSwitch(PR_LOCAL_THREAD, PR_GLOBAL_THREAD);
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| 375 | }
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| 376 |
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| 377 | static void SemaContextSwitchKU(void)
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| 378 | {
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| 379 | SemaContextSwitch(PR_GLOBAL_THREAD, PR_LOCAL_THREAD);
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| 380 | }
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| 381 |
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| 382 | static void SemaContextSwitchKK(void)
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| 383 | {
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| 384 | SemaContextSwitch(PR_GLOBAL_THREAD, PR_GLOBAL_THREAD);
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| 385 | }
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| 386 |
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| 387 |
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| 388 | /************************************************************************/
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| 389 |
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| 390 | static void Measure(void (*func)(void), const char *msg)
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| 391 | {
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| 392 | PRIntervalTime start, stop;
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| 393 | double d;
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| 394 |
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| 395 | start = PR_IntervalNow();
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| 396 | (*func)();
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| 397 | stop = PR_IntervalNow() - start;
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| 398 | d = (double)PR_IntervalToMicroseconds(stop);
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| 399 |
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| 400 | printf("%40s: %6.2f usec\n", msg, d / count);
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| 401 | }
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| 402 |
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| 403 | int main(int argc, char **argv)
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| 404 | {
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| 405 | PLOptStatus os;
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| 406 | PLOptState *opt = PL_CreateOptState(argc, argv, "dc:");
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| 407 | while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
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| 408 | {
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| 409 | if (PL_OPT_BAD == os) continue;
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| 410 | switch (opt->option)
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| 411 | {
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| 412 | case 'd': /* debug mode */
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| 413 | _debug_on = 1;
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| 414 | break;
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| 415 | case 'c': /* loop count */
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| 416 | count = atoi(opt->value);
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| 417 | break;
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| 418 | default:
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| 419 | break;
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| 420 | }
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| 421 | }
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| 422 | PL_DestroyOptState(opt);
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| 423 |
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| 424 | if (0 == count) count = DEFAULT_COUNT;
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| 425 |
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| 426 | PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
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| 427 | PR_BlockClockInterrupts();
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| 428 | PR_UnblockClockInterrupts();
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| 429 | PR_STDIO_INIT();
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| 430 |
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| 431 | #ifdef XP_MAC
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| 432 | SetupMacPrintfLog("perf.log");
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| 433 | #endif
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| 434 |
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| 435 | lock = PR_NewLock();
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| 436 | mon = PR_NewMonitor();
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| 437 | mon2 = PR_NewMonitor();
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| 438 |
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| 439 | Measure(LocalProcedureCall, "local procedure call overhead");
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|---|
| 440 | Measure(DLLProcedureCall, "DLL procedure call overhead");
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|---|
| 441 | Measure(Now, "current calendar time");
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|---|
| 442 | Measure(Interval, "interval time");
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|---|
| 443 | Measure(IdleLock, "idle lock lock/unlock pair");
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|---|
| 444 | Measure(IdleMonitor, "idle monitor entry/exit pair");
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|---|
| 445 | Measure(IdleCMonitor, "idle cache monitor entry/exit pair");
|
|---|
| 446 | Measure(CDThread, "create/destroy thread pair");
|
|---|
| 447 | Measure(ContextSwitchUU, "context switch - user/user");
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|---|
| 448 | Measure(ContextSwitchUK, "context switch - user/kernel");
|
|---|
| 449 | Measure(ContextSwitchKU, "context switch - kernel/user");
|
|---|
| 450 | Measure(ContextSwitchKK, "context switch - kernel/kernel");
|
|---|
| 451 | Measure(SemaContextSwitchUU, "sema context switch - user/user");
|
|---|
| 452 | Measure(SemaContextSwitchUK, "sema context switch - user/kernel");
|
|---|
| 453 | Measure(SemaContextSwitchKU, "sema context switch - kernel/user");
|
|---|
| 454 | Measure(SemaContextSwitchKK, "sema context switch - kernel/kernel");
|
|---|
| 455 |
|
|---|
| 456 | printf("--------------\n");
|
|---|
| 457 | printf("Adding 7 additional CPUs\n");
|
|---|
| 458 |
|
|---|
| 459 | PR_SetConcurrency(8);
|
|---|
| 460 | printf("--------------\n");
|
|---|
| 461 |
|
|---|
| 462 | Measure(LocalProcedureCall, "local procedure call overhead");
|
|---|
| 463 | Measure(DLLProcedureCall, "DLL procedure call overhead");
|
|---|
| 464 | Measure(Now, "current calendar time");
|
|---|
| 465 | Measure(Interval, "interval time");
|
|---|
| 466 | Measure(IdleLock, "idle lock lock/unlock pair");
|
|---|
| 467 | Measure(IdleMonitor, "idle monitor entry/exit pair");
|
|---|
| 468 | Measure(IdleCMonitor, "idle cache monitor entry/exit pair");
|
|---|
| 469 | Measure(CDThread, "create/destroy thread pair");
|
|---|
| 470 | Measure(ContextSwitchUU, "context switch - user/user");
|
|---|
| 471 | Measure(ContextSwitchUK, "context switch - user/kernel");
|
|---|
| 472 | Measure(ContextSwitchKU, "context switch - kernel/user");
|
|---|
| 473 | Measure(ContextSwitchKK, "context switch - kernel/kernel");
|
|---|
| 474 | Measure(SemaContextSwitchUU, "sema context switch - user/user");
|
|---|
| 475 | Measure(SemaContextSwitchUK, "sema context switch - user/kernel");
|
|---|
| 476 | Measure(SemaContextSwitchKU, "sema context switch - kernel/user");
|
|---|
| 477 | Measure(SemaContextSwitchKK, "sema context switch - kernel/kernel");
|
|---|
| 478 |
|
|---|
| 479 | PR_DestroyLock(lock);
|
|---|
| 480 | PR_DestroyMonitor(mon);
|
|---|
| 481 | PR_DestroyMonitor(mon2);
|
|---|
| 482 |
|
|---|
| 483 | PR_Cleanup();
|
|---|
| 484 | return 0;
|
|---|
| 485 | }
|
|---|
