| /* |
| * Copyright (c) 2014, 2015, 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. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "compiler/compilerDefinitions.hpp" |
| |
| #if INCLUDE_RTM_OPT |
| |
| #include "memory/allocation.inline.hpp" |
| #include "runtime/task.hpp" |
| #include "runtime/rtmLocking.hpp" |
| |
| |
| // One-shot PeriodicTask subclass for enabling RTM locking |
| uintx RTMLockingCounters::_calculation_flag = 0; |
| |
| class RTMLockingCalculationTask : public PeriodicTask { |
| public: |
| RTMLockingCalculationTask(size_t interval_time) : PeriodicTask(interval_time){ } |
| |
| virtual void task() { |
| RTMLockingCounters::_calculation_flag = 1; |
| // Reclaim our storage and disenroll ourself |
| delete this; |
| } |
| }; |
| |
| void RTMLockingCounters::init() { |
| if (UseRTMLocking && RTMLockingCalculationDelay > 0) { |
| RTMLockingCalculationTask* task = new RTMLockingCalculationTask(RTMLockingCalculationDelay); |
| task->enroll(); |
| } else { |
| _calculation_flag = 1; |
| } |
| } |
| |
| //------------------------------print_on------------------------------- |
| void RTMLockingCounters::print_on(outputStream* st) { |
| tty->print_cr("# rtm locks total (estimated): " UINTX_FORMAT, _total_count * RTMTotalCountIncrRate); |
| tty->print_cr("# rtm lock aborts : " UINTX_FORMAT, _abort_count); |
| for (int i = 0; i < ABORT_STATUS_LIMIT; i++) { |
| tty->print_cr("# rtm lock aborts %d: " UINTX_FORMAT, i, _abortX_count[i]); |
| } |
| } |
| |
| #endif |