/*
* Copyright ( c ) 2018 , 2021 , 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 "gc/shared/tlab_globals.hpp"
#include "gc/z/zAddress.inline.hpp"
#include "gc/z/zStackWatermark.hpp"
#include "gc/z/zThreadLocalAllocBuffer.hpp"
#include "gc/z/zValue.inline.hpp"
#include "runtime/globals.hpp"
#include "runtime/javaThread.hpp"
#include "runtime/stackWatermarkSet.inline.hpp"
ZPerWorker<ThreadLocalAllocStats>* ZThreadLocalAllocBuffer::_stats = NULL;
void ZThreadLocalAllocBuffer::initialize() {
if (UseTLAB) {
assert(_stats == NULL, "Already initialized" );
_stats = new ZPerWorker<ThreadLocalAllocStats>();
reset_statistics();
}
}
void ZThreadLocalAllocBuffer::reset_statistics() {
if (UseTLAB) {
ZPerWorkerIterator<ThreadLocalAllocStats> iter(_stats);
for (ThreadLocalAllocStats* stats; iter.next(&stats);) {
stats->reset();
}
}
}
void ZThreadLocalAllocBuffer::publish_statistics() {
if (UseTLAB) {
ThreadLocalAllocStats total;
ZPerWorkerIterator<ThreadLocalAllocStats> iter(_stats);
for (ThreadLocalAllocStats* stats; iter.next(&stats);) {
total.update(*stats);
}
total.publish();
}
}
static void fixup_address(HeapWord** p) {
*p = (HeapWord*)ZAddress::good_or_null((uintptr_t)*p);
}
void ZThreadLocalAllocBuffer::retire(JavaThread* thread, ThreadLocalAllocStats* stats) {
if (UseTLAB) {
stats->reset();
thread->tlab().addresses_do(fixup_address);
thread->tlab().retire(stats);
if (ResizeTLAB) {
thread->tlab().resize();
}
}
}
void ZThreadLocalAllocBuffer::remap(JavaThread* thread) {
if (UseTLAB) {
thread->tlab().addresses_do(fixup_address);
}
}
void ZThreadLocalAllocBuffer::update_stats(JavaThread* thread) {
if (UseTLAB) {
ZStackWatermark* const watermark = StackWatermarkSet::get<ZStackWatermark>(thread, StackWatermarkKind::gc);
_stats->addr()->update(watermark->stats());
}
}
Messung V0.5 in Prozent C=99 H=100 G=99
¤ Dauer der Verarbeitung: 0.8 Sekunden
(vorverarbeitet am 2026-09-04)
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