sal/workben/measure_oustrings.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #include <sal/main.h>
  11 #include <rtl/ustring.hxx>
  12 #include <osl/time.h>
  13 #include <osl/process.h>
  14
  15 #include <iostream>
  16 #include <sstream>
  17 #include <fstream>
  18
  19 #if defined HAVE_VALGRIND_HEADERS
  20 #    include <valgrind/callgrind.h>
  21 int COUNT = 1;
  22 #else
  23 #    define CALLGRIND_DUMP_STATS_AT
  24 #    define CALLGRIND_START_INSTRUMENTATION
  25 #    define CALLGRIND_STOP_INSTRUMENTATION
  26 #    define CALLGRIND_ZERO_STATS
  27 int COUNT = 10000000;
  28 #endif
  29
  30 #if defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L
  31 #   define HAVE_CXX_Ox 1
  32 #endif
  33
  34 #ifdef HAVE_CXX_Ox
  35 #  define SAL_DECLARE_UTF16(str) u ## str
  36 #elif __SIZEOF_WCHAR_T__ == 2
  37 #  define SAL_DECLARE_UTF16(str) L ## str
  38 #endif
  39
  40 #ifdef SAL_DECLARE_UTF16
  41 #  define RTL_CONSTASCII_USTRINGPARAM_WIDE(str) \
  42      reinterpret_cast<const sal_Unicode*>(SAL_DECLARE_UTF16(str)), (SAL_N_ELEMENTS(str)-1)
  43 #endif
  44
  45 #define RTL_CONSTASCII_USTRINGPARAM_CLASSIC(str) \
  46     str, ((sal_Int32)(SAL_N_ELEMENTS(str)-1)), RTL_TEXTENCODING_ASCII_US
  47
  48 int currenttest = 1;
  49 oslProcessInfo pidinfo;
  50
  51 class TimerMeasure
  52 {
  53 private:
  54     const char *m_pMessage;
  55     sal_uInt32 m_nStartTime, m_nEndTime;
  56 public:
  57     TimerMeasure(const char *pMessage)
  58     : m_pMessage(pMessage)
  59     {
  60         m_nStartTime = osl_getGlobalTimer();
  61         CALLGRIND_START_INSTRUMENTATION
  62         CALLGRIND_ZERO_STATS
  63     }
  64
  65     ~TimerMeasure()
  66     {
  67         CALLGRIND_STOP_INSTRUMENTATION
  68         CALLGRIND_DUMP_STATS_AT(m_pMessage);
  69         m_nEndTime = osl_getGlobalTimer();
  70         std::cout << m_pMessage << std::endl;
  71         std::cout << "    callgrind Instruction cost is: " << std::flush;
  72
  73         std::stringstream aFileName;
  74         aFileName << "callgrind.out." << pidinfo.Ident << "." << currenttest;
  75
  76         std::ifstream myfile(aFileName.str(), std::ios::in);
  77         if (myfile.is_open())
  78         {
  79             std::stringstream aGetGrindStats;
  80             aGetGrindStats << "callgrind_annotate " << aFileName.str() <<
  81                 " | grep TOTALS | sed 's/ PROGRAM TOTALS//'";
  82             system(aGetGrindStats.str().c_str());
  83             myfile.close();
  84         }
  85         else
  86             std::cout << "Unavailable" << std::endl;
  87         currenttest++;
  88 #ifndef HAVE_CALLGRIND
  89         std::cout << "    Elapsed tools::Time is: " << m_nEndTime - m_nStartTime << "ms" << std::endl;
  90 #endif
  91     }
  92 };
  93
  94 #define TIME(msg, test) \
  95 {\
  96     { test } /*Run the test one to shake out any firsttime lazy loading stuff*/ \
  97     TimerMeasure aMeasure(msg);\
  98     for (int i = 0; i < COUNT; ++i)\
  99         test\
 100 }
 101
 102 SAL_IMPLEMENT_MAIN()
 103 {
 104     CALLGRIND_STOP_INSTRUMENTATION
 105     CALLGRIND_ZERO_STATS
 106
 107     pidinfo.Size = sizeof(pidinfo);
 108     osl_getProcessInfo(0, osl_Process_IDENTIFIER, &pidinfo);
 109
 110 #ifdef HAVE_CALLGRIND
 111     std::cout << "Execute using: valgrind --tool=callgrind ./measure_oustrings" << std::endl;
 112 #else
 113     //get my cpu fan up to speed :-)
 114     for (int i = 0; i < 10000000; ++i)
 115     {
 116         rtl::OUString sFoo(rtl::OUString::createFromAscii("X"));
 117         rtl::OUString sBar(RTL_CONSTASCII_USTRINGPARAM_CLASSIC("X"));
 118         rtl::OUString sBaz(static_cast<sal_Unicode>('X'));
 119         rtl::OUString sNone;
 120     }
 121 #endif
 122
 123     std::cout << "--Empty Strings Construction--" << std::endl;
 124
 125     TIME
 126     (
 127         "rtl::OUString()",
 128         rtl::OUString sFoo;
 129     )
 130
 131     TIME
 132     (
 133         "rtl::OUString::createFromAscii()",
 134         rtl::OUString sFoo(rtl::OUString::createFromAscii(""));
 135     )
 136
 137     std::cout << "--Single Chars Construction--" << std::endl;
 138
 139     TIME
 140     (
 141         "rtl::OUString(static_cast<sal_Unicode>('X')",
 142         rtl::OUString sBaz(static_cast<sal_Unicode>('X'));
 143     )
 144
 145 #ifdef SAL_DECLARE_UTF16
 146     TIME
 147     (
 148         "rtl::OUString(RTL_CONSTASCII_USTRINGPARAM_WIDE(\"X\"))",
 149         rtl::OUString sBar(RTL_CONSTASCII_USTRINGPARAM_WIDE("X"));
 150     )
 151 #endif
 152
 153     TIME
 154     (
 155         "rtl::OUString(RTL_CONSTASCII_USTRINGPARAM_CLASSIC(\"X\"))",
 156         rtl::OUString sBar(RTL_CONSTASCII_USTRINGPARAM_CLASSIC("X"));
 157     )
 158
 159     TIME
 160     (
 161         "rtl::OUString::createFromAscii(\"X\")",
 162         rtl::OUString sFoo(rtl::OUString::createFromAscii("X"));
 163     )
 164
 165     std::cout << "--MultiChar Strings Construction--" << std::endl;
 166
 167 #ifdef SAL_DECLARE_UTF16
 168     TIME
 169     (
 170         "rtl::OUString(RTL_CONSTASCII_USTRINGPARAM_WIDE(\"XXXXXXXX\"))",
 171         rtl::OUString sBar(RTL_CONSTASCII_USTRINGPARAM_WIDE("XXXXXXXXXXXXXXX"));
 172     )
 173 #endif
 174
 175     TIME
 176     (
 177         "rtl::OUString(RTL_CONSTASCII_USTRINGPARAM_CLASSIC(\"XXXXXXXX\"))",
 178         rtl::OUString sBar(RTL_CONSTASCII_USTRINGPARAM_CLASSIC("XXXXXXXXXXXXXXX"));
 179     )
 180
 181     TIME
 182     (
 183         "rtl::OUString::createFromAscii(\"XXXXXXXX\")",
 184         rtl::OUString sFoo(rtl::OUString::createFromAscii("XXXXXXXXXXXXXXX"));
 185     )
 186
 187     std::cout << "--Ascii Unequal Comparison--" << std::endl;
 188
 189     rtl::OUString sCompare(RTL_CONSTASCII_USTRINGPARAM_CLASSIC("XXXXXXXXXXXXXXX"));
 190
 191     TIME
 192     (
 193         "rtl::OUString::equalsAsciiL",
 194         sCompare.equalsAsciiL(RTL_CONSTASCII_STRINGPARAM("apple"));
 195     )
 196
 197     rtl::OUString sUnequalCompareTo(RTL_CONSTASCII_USTRINGPARAM_CLASSIC("apple"));
 198
 199     TIME
 200     (
 201         "operator==(precreated OUString(\"apple\"))",
 202         sCompare == sUnequalCompareTo;
 203     )
 204
 205     TIME
 206     (
 207         "rtl::OUString::equalsAscii",
 208         sCompare.equalsAscii("apple");
 209     )
 210
 211     //(const sal_Char*, sal_Int32) version has different semantics
 212     TIME
 213     (
 214         "rtl::OUString::compareToAscii (const sal_Char*)",
 215         sCompare.compareToAscii("apple");
 216     )
 217
 218     TIME
 219     (
 220         "operator==(rtl::OUString(RTL_CONSTASCII_USTRINGPARAM_CLASSIC(\"apple\")))",
 221         sCompare == rtl::OUString(RTL_CONSTASCII_USTRINGPARAM_CLASSIC("apple"));
 222     )
 223
 224     std::cout << "--Ascii Equal Comparison--" << std::endl;
 225
 226     TIME
 227     (
 228         "rtl::OUString::equalsAsciiL",
 229         sCompare.equalsAsciiL(RTL_CONSTASCII_STRINGPARAM("XXXXXXXXXXXXXXX"));
 230     )
 231
 232     rtl::OUString sEqualCompareTo(RTL_CONSTASCII_USTRINGPARAM_CLASSIC("XXXXXXXXXXXXXXX"));
 233
 234     TIME
 235     (
 236         "operator==(precreated OUString(\"XXXXXXXXXXXXXXX\"))",
 237         sCompare == sEqualCompareTo;
 238     )
 239
 240     TIME
 241     (
 242         "rtl::OUString::equalsAscii",
 243         sCompare.equalsAscii("XXXXXXXXXXXXXXX");
 244     )
 245
 246     //(const sal_Char*, sal_Int32) version has different semantics
 247     TIME
 248     (
 249         "rtl::OUString::compareToAscii (const sal_Char*)",
 250         sCompare.compareToAscii("XXXXXXXXXXXXXXX");
 251     )
 252
 253     TIME
 254     (
 255         "operator==(rtl::OUString(RTL_CONSTASCII_USTRINGPARAM_CLASSIC(\"XXXXXXXXXXXXXXX\"))",
 256         sCompare == rtl::OUString(RTL_CONSTASCII_USTRINGPARAM_CLASSIC("XXXXXXXXXXXXXXX"));
 257     )
 258
 259     return 0;
 260 }
 261
 262 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */