+//
+// 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"
+//
+
+