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8349836: G1: Improve group prediction log message

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Reviewed-by: ayang, iwalulya
This commit is contained in:
Thomas Schatzl 2025-02-12 16:11:09 +00:00
parent ed17c55ea3
commit 73e1780ad0
1 changed files with 9 additions and 5 deletions
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14
src/hotspot/share/gc/g1/g1CollectionSetCandidates.cpp
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@ -102,8 +102,15 @@ double G1CSetCandidateGroup::predict_group_total_time_ms() const {
double merge_scan_time_ms = p->predict_merge_scan_time(card_rs_length);
double non_young_other_time_ms = p->predict_non_young_other_time_ms(length());
log_trace(gc, ergo, cset) ("Prediction for group with %u regions, card_rs_length %zu, merge_scan_time %.2fms, code_root_scan_time_ms %.2fms, evac_time_ms %.2fms, other_time %.2fms, bytes_to_cop %zu",
double total_time_ms = merge_scan_time_ms +
predict_code_root_scan_time_ms +
predicted_copy_time_ms +
non_young_other_time_ms;
log_trace(gc, ergo, cset) ("Prediction for group %u (%u regions): total_time %.2fms card_rs_length %zu merge_scan_time %.2fms code_root_scan_time_ms %.2fms evac_time_ms %.2fms other_time %.2fms bytes_to_copy %zu",
group_id(),
length(),
total_time_ms,
card_rs_length,
merge_scan_time_ms,
predict_code_root_scan_time_ms,
@ -111,10 +118,7 @@ double G1CSetCandidateGroup::predict_group_total_time_ms() const {
non_young_other_time_ms,
predict_bytes_to_copy);
return merge_scan_time_ms +
predict_code_root_scan_time_ms +
predicted_copy_time_ms +
non_young_other_time_ms;
return total_time_ms;
}
int G1CSetCandidateGroup::compare_gc_efficiency(G1CSetCandidateGroup** gr1, G1CSetCandidateGroup** gr2) {