Mercurial > hg > graal-compiler
view src/share/vm/services/runtimeService.hpp @ 2149:7e37af9d69ef
7011379: G1: overly long concurrent marking cycles
Summary: This changeset introduces filtering of SATB buffers at the point when they are about to be enqueued. If this filtering clears enough entries on each buffer, the buffer can then be re-used and not enqueued. This cuts down the number of SATB buffers that need to be processed by the concurrent marking threads.
Reviewed-by: johnc, ysr
author | tonyp |
---|---|
date | Wed, 19 Jan 2011 09:35:17 -0500 |
parents | f95d63e2154a |
children | fb19af007ffc |
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/* * Copyright (c) 2003, 2010, 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_VM_SERVICES_RUNTIMESERVICE_HPP #define SHARE_VM_SERVICES_RUNTIMESERVICE_HPP #include "runtime/perfData.hpp" #include "runtime/timer.hpp" class RuntimeService : public AllStatic { private: static PerfCounter* _sync_time_ticks; // Accumulated time spent getting to safepoints static PerfCounter* _total_safepoints; static PerfCounter* _safepoint_time_ticks; // Accumulated time at safepoints static PerfCounter* _application_time_ticks; // Accumulated time not at safepoints static PerfCounter* _thread_interrupt_signaled_count;// os:interrupt thr_kill static PerfCounter* _interrupted_before_count; // _INTERRUPTIBLE OS_INTRPT static PerfCounter* _interrupted_during_count; // _INTERRUPTIBLE OS_INTRPT static TimeStamp _safepoint_timer; static TimeStamp _app_timer; public: static void init(); static jlong safepoint_sync_time_ms(); static jlong safepoint_count(); static jlong safepoint_time_ms(); static jlong application_time_ms(); static double last_safepoint_time_sec() { return _safepoint_timer.seconds(); } static double last_application_time_sec() { return _app_timer.seconds(); } // callbacks static void record_safepoint_begin(); static void record_safepoint_synchronized(); static void record_safepoint_end(); static void record_application_start(); // interruption events static void record_interrupted_before_count(); static void record_interrupted_during_count(); static void record_thread_interrupt_signaled_count(); }; #endif // SHARE_VM_SERVICES_RUNTIMESERVICE_HPP