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8354938: ZGC: Disable UseNUMA when ZFakeNUMA is used

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Reviewed-by: aboldtch, jsikstro
This commit is contained in:
Stefan Karlsson 2025-04-22 11:48:46 +00:00
parent 0f1c448ca1
commit f2587d9bd2
1 changed files with 13 additions and 3 deletions
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16
src/hotspot/share/gc/z/zArguments.cpp
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@ -121,9 +121,19 @@ void ZArguments::select_max_gc_threads() {
void ZArguments::initialize() {
GCArguments::initialize();
// Enable NUMA by default
if (FLAG_IS_DEFAULT(UseNUMA) && FLAG_IS_DEFAULT(ZFakeNUMA)) {
FLAG_SET_DEFAULT(UseNUMA, true);
// NUMA settings
if (FLAG_IS_DEFAULT(ZFakeNUMA)) {
// Enable NUMA by default
if (FLAG_IS_DEFAULT(UseNUMA)) {
FLAG_SET_DEFAULT(UseNUMA, true);
}
} else {
if (UseNUMA) {
if (!FLAG_IS_DEFAULT(UseNUMA)) {
warning("ZFakeNUMA is enabled; turning off UseNUMA");
}
FLAG_SET_ERGO(UseNUMA, false);
}
}
select_max_gc_threads();