--- a/hotspot/src/os/windows/vm/os_windows.cpp Sat Jun 01 10:00:56 2013 +0200
+++ b/hotspot/src/os/windows/vm/os_windows.cpp Tue May 28 09:32:06 2013 +0200
@@ -813,15 +813,21 @@
return result;
}
-// For now, we say that Windows does not support vtime. I have no idea
-// whether it can actually be made to (DLD, 9/13/05).
-
-bool os::supports_vtime() { return false; }
+bool os::supports_vtime() { return true; }
bool os::enable_vtime() { return false; }
bool os::vtime_enabled() { return false; }
+
double os::elapsedVTime() {
- // better than nothing, but not much
- return elapsedTime();
+ FILETIME created;
+ FILETIME exited;
+ FILETIME kernel;
+ FILETIME user;
+ if (GetThreadTimes(GetCurrentThread(), &created, &exited, &kernel, &user) != 0) {
+ // the resolution of windows_to_java_time() should be sufficient (ms)
+ return (double) (windows_to_java_time(kernel) + windows_to_java_time(user)) / MILLIUNITS;
+ } else {
+ return elapsedTime();
+ }
}
jlong os::javaTimeMillis() {