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src/cpu/x86/vm/rtmLocking.cpp@bb1da64b0492 (annotated)

src/cpu/x86/vm/rtmLocking.cpp

Fri, 16 Aug 2019 16:50:17 +0200

author

eosterlund

date

Fri, 16 Aug 2019 16:50:17 +0200

changeset 9834

bb1da64b0492

parent 6430

52b37289e3be

child 6876

710a3c8b516e

permissions

-rw-r--r--

8229345: Memory leak due to vtable stubs not being shared on SPARC
Reviewed-by: mdoerr, dholmes, kvn

kvn@6429	1	/*
kvn@6429	2	* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
kvn@6429	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
kvn@6429	4	*
kvn@6429	5	* This code is free software; you can redistribute it and/or modify it
kvn@6429	6	* under the terms of the GNU General Public License version 2 only, as
kvn@6429	7	* published by the Free Software Foundation.
kvn@6429	8	*
kvn@6429	9	* This code is distributed in the hope that it will be useful, but WITHOUT
kvn@6429	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
kvn@6429	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
kvn@6429	12	* version 2 for more details (a copy is included in the LICENSE file that
kvn@6429	13	* accompanied this code).
kvn@6429	14	*
kvn@6429	15	* You should have received a copy of the GNU General Public License version
kvn@6429	16	* 2 along with this work; if not, write to the Free Software Foundation,
kvn@6429	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
kvn@6429	18	*
kvn@6429	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
kvn@6429	20	* or visit www.oracle.com if you need additional information or have any
kvn@6429	21	* questions.
kvn@6429	22	*
kvn@6429	23	*/
kvn@6429	24
kvn@6429	25	#include "precompiled.hpp"
kvn@6430	26	#include "memory/allocation.inline.hpp"
kvn@6429	27	#include "runtime/task.hpp"
kvn@6429	28	#include "runtime/rtmLocking.hpp"
kvn@6429	29
kvn@6429	30	// One-shot PeriodicTask subclass for enabling RTM locking
kvn@6429	31	uintx RTMLockingCounters::_calculation_flag = 0;
kvn@6429	32
kvn@6429	33	class RTMLockingCalculationTask : public PeriodicTask {
kvn@6429	34	public:
kvn@6429	35	RTMLockingCalculationTask(size_t interval_time) : PeriodicTask(interval_time){ }
kvn@6429	36
kvn@6429	37	virtual void task() {
kvn@6429	38	RTMLockingCounters::_calculation_flag = 1;
kvn@6429	39	// Reclaim our storage and disenroll ourself
kvn@6429	40	delete this;
kvn@6429	41	}
kvn@6429	42	};
kvn@6429	43
kvn@6429	44	void RTMLockingCounters::init() {
kvn@6429	45	if (UseRTMLocking && RTMLockingCalculationDelay > 0) {
kvn@6429	46	RTMLockingCalculationTask* task = new RTMLockingCalculationTask(RTMLockingCalculationDelay);
kvn@6429	47	task->enroll();
kvn@6429	48	} else {
kvn@6429	49	_calculation_flag = 1;
kvn@6429	50	}
kvn@6429	51	}
kvn@6429	52
kvn@6429	53	//------------------------------print_on-------------------------------
kvn@6429	54	void RTMLockingCounters::print_on(outputStream* st) {
kvn@6429	55	tty->print_cr("# rtm locks total (estimated): " UINTX_FORMAT, _total_count * RTMTotalCountIncrRate);
kvn@6429	56	tty->print_cr("# rtm lock aborts : " UINTX_FORMAT, _abort_count);
kvn@6429	57	for (int i = 0; i < ABORT_STATUS_LIMIT; i++) {
kvn@6429	58	tty->print_cr("# rtm lock aborts %d: " UINTX_FORMAT, i, _abortX_count[i]);
kvn@6429	59	}
kvn@6429	60	}