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8383856: Implement JEP 523: Make G1 the Default Garbage Collector in All Environments

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Reviewed-by: stefank, phubner, sjohanss
This commit is contained in:
Thomas Schatzl 2026-05-21 07:40:09 +00:00
parent 50deb1712c
commit 86637704fd
1 changed files with 6 additions and 4 deletions
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10
src/hotspot/share/gc/shared/gcConfig.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2018, 2025, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2018, 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
@ -95,10 +95,11 @@ void GCConfig::fail_if_non_included_gc_is_selected() {
}
void GCConfig::select_gc_ergonomically() {
if (os::is_server_class_machine()) {
#if INCLUDE_G1GC
FLAG_SET_ERGO_IF_DEFAULT(UseG1GC, true);
#elif INCLUDE_PARALLELGC
FLAG_SET_ERGO_IF_DEFAULT(UseG1GC, true);
#else
if (os::is_server_class_machine()) {
#if INCLUDE_PARALLELGC
FLAG_SET_ERGO_IF_DEFAULT(UseParallelGC, true);
#elif INCLUDE_SERIALGC
FLAG_SET_ERGO_IF_DEFAULT(UseSerialGC, true);
@ -108,6 +109,7 @@ void GCConfig::select_gc_ergonomically() {
FLAG_SET_ERGO_IF_DEFAULT(UseSerialGC, true);
#endif
}
#endif
}
bool GCConfig::is_no_gc_selected() {