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8383503: Test runtime/cds/MetaspaceAllocGaps.java failed

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Reviewed-by: kvn, iveresov
This commit is contained in:
Ioi Lam 2026-05-04 19:41:27 +00:00
parent 14bdfeb08c
commit 13a8c8eeb8
1 changed files with 13 additions and 4 deletions
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17
src/hotspot/share/cds/archiveUtils.cpp
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@ -416,13 +416,22 @@ void DumpRegion::report_gaps(DumpAllocStats* stats) {
stats->record_gap(checked_cast<int>(node->key().gap_bytes()));
return true;
});
double unfilled_percent = 0.0;
if (_gap_tree.size() > 0) {
log_warning(aot)("Unexpected %zu gaps (%zu bytes) for Klass alignment",
_gap_tree.size(), _total_gap_bytes);
unfilled_percent = percent_of(_total_gap_bytes, _total_gap_allocs);
if (unfilled_percent > 5.0) {
// We have a limited number of small objects, so some small gaps may remain
// unfilled. If more than 5% of the gaps are unfilled, this likely indicates
// a systematic error that should be investigated. Otherwise, do not warn to
// avoid noise.
log_warning(aot)("Unexpected %zu gaps (%zu bytes) for Klass alignment",
_gap_tree.size(), _total_gap_bytes);
}
}
if (_total_gap_allocs > 0) {
log_info(aot)("Allocated %zu objects of %zu bytes in gaps (remain = %zu bytes)",
_total_gap_allocs, _total_gap_bytes_used, _total_gap_bytes);
log_info(aot)("Allocated %zu objects of %zu bytes in gaps (remain = %zu bytes, %.2f%%)",
_total_gap_allocs, _total_gap_bytes_used, _total_gap_bytes, unfilled_percent);
}
}