hg: jdk7/hotspot-rt/hotspot: 6934758: Expose the break down of clean up task time during safepoint.

[xiaobin.lu at sun.com]

Changeset: 0f6600cee529
Author:    xlu
Date:      2010-03-13 16:32 -0800
URL:       http://hg.openjdk.java.net/jdk7/hotspot-rt/hotspot/rev/0f6600cee529

6934758: Expose the break down of clean up task time during safepoint.
Summary: Use -XX:+TraceSafepointCleanupTime to print out the details of each clean up tasks.
Reviewed-by: dholmes, ysr

! src/share/vm/runtime/globals.hpp
! src/share/vm/runtime/safepoint.cpp