Mercurial > hg > graal-jvmci-8
view src/share/vm/runtime/vtune.hpp @ 94:0834225a7916
6634032: CMS: Need CMSInitiatingPermOccupancyFraction for perm, divorcing from CMSInitiatingOccupancyFraction
Summary: The option CMSInitiatingPermOccupancyFraction now controls perm triggering threshold. Even though the actual value of the threshold has not yet been changed, so there is no change in policy, we now have the infrastructure in place for dynamically deciding when to collect the perm gen, an issue that will be addressed in the near future.
Reviewed-by: jmasa
author | ysr |
---|---|
date | Sun, 16 Mar 2008 21:57:25 -0700 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * Copyright 1998-2007 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ // Interface to Intel's VTune profiler. class VTune : AllStatic { public: static void create_nmethod(nmethod* nm); // register newly created nmethod static void delete_nmethod(nmethod* nm); // unregister nmethod before discarding it static void register_stub(const char* name, address start, address end); // register internal VM stub static void start_GC(); // start/end of GC or scavenge static void end_GC(); static void start_class_load(); // start/end of class loading static void end_class_load(); static void exit(); // VM exit }; // helper objects class VTuneGCMarker : StackObj { public: VTuneGCMarker() { VTune::start_GC(); } ~VTuneGCMarker() { VTune::end_GC(); } }; class VTuneClassLoadMarker : StackObj { public: VTuneClassLoadMarker() { VTune::start_class_load(); } ~VTuneClassLoadMarker() { VTune::end_class_load(); } };