infernap12/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2026-01-28 03:58:21 +00:00
Code Issues Packages Projects Releases Wiki Activity

8374680: ZGC: Convert zGeneration to use Atomic<T>

Browse Source 
Reviewed-by: stefank, tschatzl
This commit is contained in:
Axel Boldt-Christmas 2026-01-26 14:28:39 +00:00
parent fef85ff932
commit b59f49a1c3
2 changed files with 15 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
src/hotspot/share/gc/z/zGeneration.cpp
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2021, 2025, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2021, 2026, 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
@ -56,7 +56,6 @@
#include "logging/log.hpp"
#include "memory/universe.hpp"
#include "prims/jvmtiTagMap.hpp"
#include "runtime/atomicAccess.hpp"
#include "runtime/continuation.hpp"
#include "runtime/handshake.hpp"
#include "runtime/safepoint.hpp"
@ -298,33 +297,33 @@ bool ZGeneration::is_relocate_queue_active() const {
void ZGeneration::reset_statistics() {
assert(SafepointSynchronize::is_at_safepoint(), "Should be at safepoint");
_freed = 0;
_promoted = 0;
_compacted = 0;
_freed.store_relaxed(0u);
_promoted.store_relaxed(0u);
_compacted.store_relaxed(0u);
}
size_t ZGeneration::freed() const {
return _freed;
return _freed.load_relaxed();
}
void ZGeneration::increase_freed(size_t size) {
AtomicAccess::add(&_freed, size, memory_order_relaxed);
_freed.add_then_fetch(size, memory_order_relaxed);
}
size_t ZGeneration::promoted() const {
return _promoted;
return _promoted.load_relaxed();;
}
void ZGeneration::increase_promoted(size_t size) {
AtomicAccess::add(&_promoted, size, memory_order_relaxed);
_promoted.add_then_fetch(size, memory_order_relaxed);
}
size_t ZGeneration::compacted() const {
return _compacted;
return _compacted.load_relaxed();;
}
void ZGeneration::increase_compacted(size_t size) {
AtomicAccess::add(&_compacted, size, memory_order_relaxed);
_compacted.add_then_fetch(size, memory_order_relaxed);
}
ConcurrentGCTimer* ZGeneration::gc_timer() const {

9
src/hotspot/share/gc/z/zGeneration.hpp
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2021, 2025, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2021, 2026, 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
@ -37,6 +37,7 @@
#include "gc/z/zWeakRootsProcessor.hpp"
#include "gc/z/zWorkers.hpp"
#include "memory/allocation.hpp"
#include "runtime/atomic.hpp"
class ThreadClosure;
class ZForwardingTable;
@ -70,9 +71,9 @@ protected:
ZRelocate _relocate;
ZRelocationSet _relocation_set;
volatile size_t _freed;
volatile size_t _promoted;
volatile size_t _compacted;
Atomic<size_t> _freed;
Atomic<size_t> _promoted;
Atomic<size_t> _compacted;
Phase _phase;
uint32_t _seqnum;