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update infos about profiling under linux (callgrind utility has been merged with valgrind)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@52741 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Francesco Montorsi
2008-03-23 18:08:16 +00:00
parent b052c79adc
commit a15302de18
1 changed files with 27 additions and 13 deletions
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40
tests/benchmarks/printfbench.cpp
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@@ -9,6 +9,32 @@
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
//
// Profiling under Linux:
// =====================
//
// 1) configure wxWidgets in release mode
// 2) make sure that HAVE_UNIX98_PRINTF is undefined (just #defining it to zero
// does not work; you must comment out the entire #define) in your setup.h;
// and also that wxUSE_PRINTF_POS_PARAMS is set to 1; this will force the
// use of wx's own implementation of wxVsnprintf()
// 3) compile wx
// 4) set wxTEST_WX_ONLY to 1 and compile tests as well
//
// Now you have two main choices:
//
// - using gprof:
// 5) add to the Makefile of this test program the -pg option both to
// CXXFLAGS and to LDFLAGS
// 6) run the test
// 7) look at the gmon.out file with gprof utility
//
// - using valgrind:
// 4) run "valgrind --tool=callgrind ./printfbench"
// 5) run "kcachegrind dump_file_generated_by_callgrind"
//
// ============================================================================
// declarations
// ============================================================================
@@ -38,7 +64,7 @@
// command line
// ----------------------------------------------------------------------------
#define HELP_SWITCH "h"
#define HELP_SWITCH "h"
#define NUMBENCHMARK_OPTION "n"
static const wxCmdLineEntryDesc g_cmdLineDesc[] =
@@ -61,18 +87,6 @@ static const wxCmdLineEntryDesc g_cmdLineDesc[] =
#define BUFSIZE 10000
// set wxTEST_WX_ONLY to 1 when you want to profile wx's implementation only.
// A little reminder about profiling under Linux:
//
// 1) configure wxWidgets in release mode
// 2) make sure that HAVE_UNIX98_PRINTF is undefined (just #defining it to zero
// does not work; you must comment out the entire #define) in your setup.h;
// and also that wxUSE_PRINTF_POS_PARAMS is set to 1; this will force the
// use of wx's own implementation of wxVsnprintf()
// 3) compile wx
// 4) set wxTEST_WX_ONLY to 1 and compile tests as well
// 5) run "callgrind ./printfbench"
// 6) run "kcachegrind dump_file_generated_by_callgrind"
//
#define wxTEST_WX_ONLY 1