build,src: enable Intel Vtune profiling for JavaScript.

  This feature supports the Intel Vtune profiling support for JITted
  JavaScript on IA32 / X64 / X32 platform. The advantage of this
  profiling is that the user / developer of NodeJS application can
  get the detailed profiling information for every line of the Java-
  Script source code. This information will be very useful for the
  owner to optimize their applications.

  This feature is a compile-time option. For windows platform, The
  user needs to pass the following parameter to vcbuid.bat:
     "enable-vtune"

  For other OS, the user needs to pass the following parameter to
  ./configure command:
     "--enable-vtune-profiling"

configure

@@ -86,6 +86,14 @@ parser.add_option("--fully-static",
  help="Generate an executable without external dynamic libraries. This "
  "will not work on OSX when using default compilation environment")
 
+parser.add_option("--enable-vtune-profiling",
+ action="store_true",
+ dest="enable_vtune_profiling",
+ help="Enable profiling support for Intel Vtune profiler to profile"
+ "JavaScript code executed in nodejs. This feature is only available "
+ "for ia32, x32 or x64 platform.")
+
+
 parser.add_option("--link-module",
  action="append",
  dest="linked_module",
@@ -679,6 +687,15 @@ def configure_node(o):
  o['variables']['node_core_target_name'] = 'node_base'
  o['variables']['node_target_type'] = 'static_library'
 
+ if target_arch in ('x86', 'x64', 'ia32', 'x32'):
+ o['variables']['node_enable_v8_vtunejit'] = b(options.enable_vtune_profiling)
+ elif options.enable_vtune_profiling:
+ raise Exception(
+ 'vtune profiler for JavaScript is only supported on x86, x32 or x64 '
+ 'platform.')
+ else:
+ o['variables']['node_enable_v8_vtunejit'] = 'false'
+
  if flavor in ('solaris', 'mac', 'linux', 'freebsd'):
  use_dtrace = not options.without_dtrace
  # Don't enable by default on linux and freebsd

node.gyp

@@ -12,6 +12,7 @@
  'node_use_openssl%': 'true',
  'node_shared_openssl%': 'false',
  'node_v8_options%': '',
+ 'node_enable_v8_vtunejit%': 'false',
  'node_target_type%': 'executable',
  'node_core_target_name%': 'node',
  'library_files': [
@@ -221,6 +222,13 @@
  'defines': [ 'NODE_HAVE_SMALL_ICU=1' ],
  }]],
  }],
+ [ 'node_enable_v8_vtunejit=="true" and (target_arch=="x64" or \
+ target_arch=="ia32" or target_arch=="x32")', {
+ 'defines': [ 'NODE_ENABLE_VTUNE_PROFILING' ],
+ 'dependencies': [
+ 'deps/v8/src/third_party/vtune/v8vtune.gyp:v8_vtune'
+ ],
+ }],
  [ 'node_use_openssl=="true"', {
  'defines': [ 'HAVE_OPENSSL=1' ],
  'sources': [

src/node.cc

@@ -43,6 +43,10 @@
 #include "v8-profiler.h"
 #include "zlib.h"
 
+#ifdef NODE_ENABLE_VTUNE_PROFILING
+#include "../deps/v8/src/third_party/vtune/v8-vtune.h"
+#endif
+
 #include <errno.h>
 #include <limits.h> // PATH_MAX
 #include <locale.h>
@@ -4025,6 +4029,9 @@ static void StartNodeInstance(void* arg) {
  Isolate::CreateParams params;
  ArrayBufferAllocator* array_buffer_allocator = new ArrayBufferAllocator();
  params.array_buffer_allocator = array_buffer_allocator;
+#ifdef NODE_ENABLE_VTUNE_PROFILING
+ params.code_event_handler = vTune::GetVtuneCodeEventHandler();
+#endif
  Isolate* isolate = Isolate::New(params);
  if (track_heap_objects) {
  isolate->GetHeapProfiler()->StartTrackingHeapObjects(true);

vcbuild.bat

@@ -37,6 +37,7 @@ set i18n_arg=
 set download_arg=
 set release_urls_arg=
 set build_release=
+set enable_vtune_profiling=
 
 :next-arg
 if "%1"=="" goto args-done
@@ -71,6 +72,7 @@ if /i "%1"=="full-icu" set i18n_arg=%1&goto arg-ok
 if /i "%1"=="intl-none" set i18n_arg=%1&goto arg-ok
 if /i "%1"=="download-all" set download_arg="--download=all"&goto arg-ok
 if /i "%1"=="ignore-flaky" set test_args=%test_args% --flaky-tests=dontcare&goto arg-ok
+if /i "%1"=="enable-vtune" set enable_vtune_profiling="--enable-vtune-profiling"&goto arg-ok
 
 echo Warning: ignoring invalid command line option `%1`.
 
@@ -168,7 +170,7 @@ goto run
 if defined noprojgen goto msbuild
 
 @rem Generate the VS project.
-python configure %download_arg% %i18n_arg% %debug_arg% %snapshot_arg% %noetw_arg% %noperfctr_arg% --dest-cpu=%target_arch% --tag=%TAG%
+python configure %download_arg% %i18n_arg% %debug_arg% %snapshot_arg% %noetw_arg% %noperfctr_arg% %enable_vtune_profiling% --dest-cpu=%target_arch% --tag=%TAG%
 if errorlevel 1 goto create-msvs-files-failed
 if not exist node.sln goto create-msvs-files-failed
 echo Project files generated.
@@ -259,13 +261,14 @@ echo Failed to create vc project files.
 goto exit
 
 :help
-echo vcbuild.bat [debug/release] [msi] [test-all/test-uv/test-internet/test-pummel/test-simple/test-message] [clean] [noprojgen] [small-icu/full-icu/intl-none] [nobuild] [nosign] [x86/x64] [download-all]
+echo vcbuild.bat [debug/release] [msi] [test-all/test-uv/test-internet/test-pummel/test-simple/test-message] [clean] [noprojgen] [small-icu/full-icu/intl-none] [nobuild] [nosign] [x86/x64] [download-all] [enable-vtune]
 echo Examples:
 echo vcbuild.bat : builds release build
 echo vcbuild.bat debug : builds debug build
 echo vcbuild.bat release msi : builds release build and MSI installer package
 echo vcbuild.bat test : builds debug build and runs tests
 echo vcbuild.bat build-release : builds the release distribution as used by nodejs.org
+echo vcbuild.bat enable-vtune : builds nodejs with Intel Vtune profiling support to profile JavaScript
 goto exit
 
 :exit