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8366145: G1: Help diagnose ubsan division by zero in computing pause time ratios (g1Analytics.cpp)

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Reviewed-by: tschatzl, kbarrett
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Leo Korinth 2025-08-28 11:37:48 +00:00
parent a5a2340054
commit b0f5b23ed2
1 changed files with 1 additions and 0 deletions
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src/hotspot/share/gc/g1/g1Analytics.cpp
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@ -181,6 +181,7 @@ void G1Analytics::update_gc_time_ratios(double end_time_sec, double pause_time_m
double short_interval_ms = (end_time_sec - most_recent_gc_end_time_sec()) * 1000.0;
assert(short_interval_ms != 0.0, "short_interval_ms should not be zero, calculated from %f and %f", end_time_sec, most_recent_gc_end_time_sec());
_short_term_gc_time_ratio = gc_time_ms / short_interval_ms;
_short_term_gc_time_ratio = clamp(_short_term_gc_time_ratio, 0.0, 1.0);