OpenJDK / jdk / jdk
view src/hotspot/share/jfr/leakprofiler/leakProfiler.hpp @ 55571:49102ba8cf14
8214542: JFR: Old Object Sample event slow on a deep heap in debug builds
Reviewed-by: egahlin, rwestberg
author | mgronlun |
---|---|
date | Wed, 03 Jul 2019 11:34:46 +0200 |
parents | 9807daeb47c4 |
children | 94b120e510d2 |
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/* * Copyright (c) 2014, 2019, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_JFR_LEAKPROFILER_LEAKPROFILER_HPP #define SHARE_JFR_LEAKPROFILER_LEAKPROFILER_HPP #include "memory/allocation.hpp" class BoolObjectClosure; class OopClosure; class JavaThread; class LeakProfiler : public AllStatic { public: static bool start(int sample_count); static bool stop(); static bool is_running(); static void emit_events(int64_t cutoff_ticks, bool emit_all); static void sample(HeapWord* object, size_t size, JavaThread* thread); // Called by GC static void oops_do(BoolObjectClosure* is_alive, OopClosure* f); }; #endif // SHARE_JFR_LEAKPROFILER_LEAKPROFILER_HPP