sal/workben/measure_oustrings.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * Version: MPL 1.1 / GPLv3+ / LGPLv3+
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
   7  * the License or as specified alternatively below. You may obtain a copy of
   8  * the License at http://www.mozilla.org/MPL/
   9  *
  10  * Software distributed under the License is distributed on an "AS IS" basis,
  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12  * for the specific language governing rights and limitations under the
  13  * License.
  14  *
  15  * Major Contributor(s):
  16  * Copyright (C) 2010 Red Hat, Inc., Caolán McNamara <caolanm@redhat.com>
  17  *  (initial developer)
  18  *
  19  * All Rights Reserved.
  20  *
  21  * For minor contributions see the git repository.
  22  *
  23  * Alternatively, the contents of this file may be used under the terms of
  24  * either the GNU General Public License Version 3 or later (the "GPLv3+"), or
  25  * the GNU Lesser General Public License Version 3 or later (the "LGPLv3+"),
  26  * in which case the provisions of the GPLv3+ or the LGPLv3+ are applicable
  27  * instead of those above.
  28  */
  29
  30 #include <sal/main.h>
  31 #include <rtl/ustring.hxx>
  32 #include <osl/time.h>
  33 #include <osl/process.h>
  34
  35 #include <iostream>
  36 #include <sstream>
  37 #include <fstream>
  38
  39 #ifdef HAVE_CALLGRIND
  40 #    include <valgrind/callgrind.h>
  41 int COUNT = 1;
  42 #else
  43 #    define CALLGRIND_DUMP_STATS_AT
  44 #    define CALLGRIND_START_INSTRUMENTATION
  45 #    define CALLGRIND_STOP_INSTRUMENTATION
  46 #    define CALLGRIND_ZERO_STATS
  47 int COUNT = 10000000;
  48 #endif
  49
  50 #if defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L
  51 #   define HAVE_CXX_Ox 1
  52 #endif
  53
  54 #ifdef HAVE_CXX_Ox
  55 #  define SAL_DECLARE_UTF16(str) u ## str
  56 #elif (defined(__SUNPRO_CC) && __SUNPRO_CC >= 0x550)
  57 #  define SAL_DECLARE_UTF16(str) U ## str
  58 #elif __SIZEOF_WCHAR_T__ == 2
  59 #  define SAL_DECLARE_UTF16(str) L ## str
  60 #endif
  61
  62 #ifdef SAL_DECLARE_UTF16
  63 #  define RTL_CONSTASCII_USTRINGPARAM_WIDE(str) \
  64      reinterpret_cast<const sal_Unicode*>(SAL_DECLARE_UTF16(str)), (SAL_N_ELEMENTS(str)-1)
  65 #endif
  66
  67 #define RTL_CONSTASCII_USTRINGPARAM_CLASSIC(str) \
  68     str, ((sal_Int32)(SAL_N_ELEMENTS(str)-1)), RTL_TEXTENCODING_ASCII_US
  69
  70 int currenttest = 1;
  71 oslProcessInfo pidinfo;
  72
  73 class TimerMeasure
  74 {
  75 private:
  76     const char *m_pMessage;
  77     sal_uInt32 m_nStartTime, m_nEndTime;
  78 public:
  79     TimerMeasure(const char *pMessage)
  80     : m_pMessage(pMessage)
  81     {
  82         m_nStartTime = osl_getGlobalTimer();
  83         CALLGRIND_START_INSTRUMENTATION
  84         CALLGRIND_ZERO_STATS
  85     }
  86
  87     ~TimerMeasure()
  88     {
  89         CALLGRIND_STOP_INSTRUMENTATION
  90         CALLGRIND_DUMP_STATS_AT(m_pMessage);
  91         m_nEndTime = osl_getGlobalTimer();
  92         std::cout << m_pMessage << std::endl;
  93         std::cout << "    callgrind Instruction cost is: " << std::flush;
  94
  95         std::stringstream aFileName;
  96         aFileName << "callgrind.out." << pidinfo.Ident << "." << currenttest;
  97
  98         std::ifstream myfile(aFileName.str(), std::ios::in);
  99         if (myfile.is_open())
 100         {
 101             std::stringstream aGetGrindStats;
 102             aGetGrindStats << "callgrind_annotate " << aFileName.str() <<
 103                 " | grep TOTALS | sed 's/ PROGRAM TOTALS//'";
 104             system(aGetGrindStats.str().c_str());
 105             myfile.close();
 106         }
 107         else
 108             std::cout << "Unavailable" << std::endl;
 109         currenttest++;
 110 #ifndef HAVE_CALLGRIND
 111         std::cout << "    Elapsed Time is: " << m_nEndTime - m_nStartTime << "ms" << std::endl;
 112 #endif
 113     }
 114 };
 115
 116 #define TIME(msg, test) \
 117 {\
 118     { test } /*Run the test one to shake out any firsttime lazy loading stuff*/ \
 119     TimerMeasure aMeasure(msg);\
 120     for (int i = 0; i < COUNT; ++i)\
 121         test\
 122 }
 123
 124 SAL_IMPLEMENT_MAIN()
 125 {
 126     CALLGRIND_STOP_INSTRUMENTATION
 127     CALLGRIND_ZERO_STATS
 128
 129     pidinfo.Size = sizeof(pidinfo);
 130     osl_getProcessInfo(0, osl_Process_IDENTIFIER, &pidinfo);
 131
 132 #ifdef HAVE_CALLGRIND
 133     std::cout << "Execute using: valgrind --tool=callgrind ./measure_oustrings" << std::endl;
 134 #else
 135     //get my cpu fan up to speed :-)
 136     for (int i = 0; i < 10000000; ++i)
 137     {
 138         rtl::OUString sFoo(rtl::OUString::createFromAscii("X"));
 139         rtl::OUString sBar(RTL_CONSTASCII_USTRINGPARAM_CLASSIC("X"));
 140         rtl::OUString sBaz(static_cast<sal_Unicode>('X'));
 141         rtl::OUString sNone;
 142     }
 143 #endif
 144
 145     std::cout << "--Empty Strings Construction--" << std::endl;
 146
 147     TIME
 148     (
 149         "rtl::OUString()",
 150         rtl::OUString sFoo;
 151     )
 152
 153     TIME
 154     (
 155         "rtl::OUString::createFromAscii()",
 156         rtl::OUString sFoo(rtl::OUString::createFromAscii(""));
 157     )
 158
 159     std::cout << "--Single Chars Construction--" << std::endl;
 160
 161     TIME
 162     (
 163         "rtl::OUString(static_cast<sal_Unicode>('X')",
 164         rtl::OUString sBaz(static_cast<sal_Unicode>('X'));
 165     )
 166
 167 #ifdef SAL_DECLARE_UTF16
 168     TIME
 169     (
 170         "rtl::OUString(RTL_CONSTASCII_USTRINGPARAM_WIDE(\"X\"))",
 171         rtl::OUString sBar(RTL_CONSTASCII_USTRINGPARAM_WIDE("X"));
 172     )
 173 #endif
 174
 175     TIME
 176     (
 177         "rtl::OUString(RTL_CONSTASCII_USTRINGPARAM_CLASSIC(\"X\"))",
 178         rtl::OUString sBar(RTL_CONSTASCII_USTRINGPARAM_CLASSIC("X"));
 179     )
 180
 181     TIME
 182     (
 183         "rtl::OUString::createFromAscii(\"X\")",
 184         rtl::OUString sFoo(rtl::OUString::createFromAscii("X"));
 185     )
 186
 187     std::cout << "--MultiChar Strings Construction--" << std::endl;
 188
 189 #ifdef SAL_DECLARE_UTF16
 190     TIME
 191     (
 192         "rtl::OUString(RTL_CONSTASCII_USTRINGPARAM_WIDE(\"XXXXXXXX\"))",
 193         rtl::OUString sBar(RTL_CONSTASCII_USTRINGPARAM_WIDE("XXXXXXXXXXXXXXX"));
 194     )
 195 #endif
 196
 197     TIME
 198     (
 199         "rtl::OUString(RTL_CONSTASCII_USTRINGPARAM_CLASSIC(\"XXXXXXXX\"))",
 200         rtl::OUString sBar(RTL_CONSTASCII_USTRINGPARAM_CLASSIC("XXXXXXXXXXXXXXX"));
 201     )
 202
 203     TIME
 204     (
 205         "rtl::OUString::createFromAscii(\"XXXXXXXX\")",
 206         rtl::OUString sFoo(rtl::OUString::createFromAscii("XXXXXXXXXXXXXXX"));
 207     )
 208
 209     std::cout << "--Ascii Unequal Comparison--" << std::endl;
 210
 211     rtl::OUString sCompare(RTL_CONSTASCII_USTRINGPARAM_CLASSIC("XXXXXXXXXXXXXXX"));
 212
 213     TIME
 214     (
 215         "rtl::OUString::equalsAsciiL",
 216         sCompare.equalsAsciiL(RTL_CONSTASCII_STRINGPARAM("apple"));
 217     )
 218
 219     rtl::OUString sUnequalCompareTo(RTL_CONSTASCII_USTRINGPARAM_CLASSIC("apple"));
 220
 221     TIME
 222     (
 223         "operator==(precreated OUString(\"apple\"))",
 224         sCompare == sUnequalCompareTo;
 225     )
 226
 227     TIME
 228     (
 229         "rtl::OUString::equalsAscii",
 230         sCompare.equalsAscii("apple");
 231     )
 232
 233     //(const sal_Char*, sal_Int32) version has different semantics
 234     TIME
 235     (
 236         "rtl::OUString::compareToAscii (const sal_Char*)",
 237         sCompare.compareToAscii("apple");
 238     )
 239
 240     TIME
 241     (
 242         "operator==(rtl::OUString(RTL_CONSTASCII_USTRINGPARAM_CLASSIC(\"apple\")))",
 243         sCompare == rtl::OUString(RTL_CONSTASCII_USTRINGPARAM_CLASSIC("apple"));
 244     )
 245
 246     std::cout << "--Ascii Equal Comparison--" << std::endl;
 247
 248     TIME
 249     (
 250         "rtl::OUString::equalsAsciiL",
 251         sCompare.equalsAsciiL(RTL_CONSTASCII_STRINGPARAM("XXXXXXXXXXXXXXX"));
 252     )
 253
 254     rtl::OUString sEqualCompareTo(RTL_CONSTASCII_USTRINGPARAM_CLASSIC("XXXXXXXXXXXXXXX"));
 255
 256     TIME
 257     (
 258         "operator==(precreated OUString(\"XXXXXXXXXXXXXXX\"))",
 259         sCompare == sEqualCompareTo;
 260     )
 261
 262     TIME
 263     (
 264         "rtl::OUString::equalsAscii",
 265         sCompare.equalsAscii("XXXXXXXXXXXXXXX");
 266     )
 267
 268     //(const sal_Char*, sal_Int32) version has different semantics
 269     TIME
 270     (
 271         "rtl::OUString::compareToAscii (const sal_Char*)",
 272         sCompare.compareToAscii("XXXXXXXXXXXXXXX");
 273     )
 274
 275     TIME
 276     (
 277         "operator==(rtl::OUString(RTL_CONSTASCII_USTRINGPARAM_CLASSIC(\"XXXXXXXXXXXXXXX\"))",
 278         sCompare == rtl::OUString(RTL_CONSTASCII_USTRINGPARAM_CLASSIC("XXXXXXXXXXXXXXX"));
 279     )
 280
 281     return 0;
 282 }
 283
 284 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */