/*
* 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." );
}
}
Messung V0.5 in Prozent C=99 H=100 G=99
¤ Dauer der Verarbeitung: 0.16 Sekunden
(vorverarbeitet am 2026-09-08)
¤
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