• file
• revisions
• annotate
• diff
• comparison
• raw

src/cpu/x86/vm/rtmLocking.cpp@04d83ba48607 (annotated)

src/cpu/x86/vm/rtmLocking.cpp

Thu, 24 May 2018 17:06:56 +0800

author

aoqi

date

Thu, 24 May 2018 17:06:56 +0800

changeset 8604

04d83ba48607

parent 6876

710a3c8b516e

permissions

-rw-r--r--

Merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*
aoqi@0	23	*/
aoqi@0	24
aoqi@0	25	#include "precompiled.hpp"
aoqi@0	26	#include "memory/allocation.inline.hpp"
aoqi@0	27	#include "runtime/task.hpp"
aoqi@0	28	#include "runtime/rtmLocking.hpp"
aoqi@0	29
aoqi@0	30	// One-shot PeriodicTask subclass for enabling RTM locking
aoqi@0	31	uintx RTMLockingCounters::_calculation_flag = 0;
aoqi@0	32
aoqi@0	33	class RTMLockingCalculationTask : public PeriodicTask {
aoqi@0	34	public:
aoqi@0	35	RTMLockingCalculationTask(size_t interval_time) : PeriodicTask(interval_time){ }
aoqi@0	36
aoqi@0	37	virtual void task() {
aoqi@0	38	RTMLockingCounters::_calculation_flag = 1;
aoqi@0	39	// Reclaim our storage and disenroll ourself
aoqi@0	40	delete this;
aoqi@0	41	}
aoqi@0	42	};
aoqi@0	43
aoqi@0	44	void RTMLockingCounters::init() {
aoqi@0	45	if (UseRTMLocking && RTMLockingCalculationDelay > 0) {
aoqi@0	46	RTMLockingCalculationTask* task = new RTMLockingCalculationTask(RTMLockingCalculationDelay);
aoqi@0	47	task->enroll();
aoqi@0	48	} else {
aoqi@0	49	_calculation_flag = 1;
aoqi@0	50	}
aoqi@0	51	}
aoqi@0	52
aoqi@0	53	//------------------------------print_on-------------------------------
aoqi@0	54	void RTMLockingCounters::print_on(outputStream* st) {
aoqi@0	55	tty->print_cr("# rtm locks total (estimated): " UINTX_FORMAT, _total_count * RTMTotalCountIncrRate);
aoqi@0	56	tty->print_cr("# rtm lock aborts : " UINTX_FORMAT, _abort_count);
aoqi@0	57	for (int i = 0; i < ABORT_STATUS_LIMIT; i++) {
aoqi@0	58	tty->print_cr("# rtm lock aborts %d: " UINTX_FORMAT, i, _abortX_count[i]);
aoqi@0	59	}
aoqi@0	60	}