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/*
* Copyright (c) 2022 SAP SE. All rights reserved.
* Copyright (c) 2021, 2022, 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 "runtime/os.inline.hpp"
#include "trimCHeapDCmd.hpp"
#include "utilities/debug.hpp"
#include "utilities/globalDefinitions.hpp"
#include "utilities/ostream.hpp"
#include <malloc.h>
void TrimCLibcHeapDCmd::execute(DCmdSource source, TRAPS) {
if (os::can_trim_native_heap()) {
os::size_change_t sc;
if (os::trim_native_heap(&sc)) {
_output->print("Trim native heap: ");
if (sc.after != SIZE_MAX) {
const size_t delta = sc.after < sc.before ? (sc.before - sc.after) : (sc.after - sc.before);
const char sign = sc.after < sc.before ? '-' : '+';
_output->print_cr("RSS+Swap: " PROPERFMT "->" PROPERFMT " (%c" PROPERFMT ")",
PROPERFMTARGS(sc.before), PROPERFMTARGS(sc.after), sign, PROPERFMTARGS(delta));
} else {
_output->print_cr("(no details available).");
}
}
} else {
_output->print_cr("Not available.");
}
}
¤ Dauer der Verarbeitung: 0.21 Sekunden
(vorverarbeitet)
¤
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