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8229835: Shenandoah should recommend -Xlog:safepoint+stats

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Reviewed-by: shade
This commit is contained in:
Florian Weimer 2019-08-16 21:20:21 +02:00 committed by Florian Weimer
parent cbfcd9c72e
commit 7895862fa9
1 changed files with 1 additions and 1 deletions
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src/hotspot/share/gc/shenandoah/shenandoahPhaseTimings.cpp
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@ -105,7 +105,7 @@ void ShenandoahPhaseTimings::print_on(outputStream* out) const {
out->cr();
out->print_cr("GC STATISTICS:");
out->print_cr(" \"(G)\" (gross) pauses include VM time: time to notify and block threads, do the pre-");
out->print_cr(" and post-safepoint housekeeping. Use -XX:+PrintSafepointStatistics to dissect.");
out->print_cr(" and post-safepoint housekeeping. Use -Xlog:safepoint+stats to dissect.");
out->print_cr(" \"(N)\" (net) pauses are the times spent in the actual GC code.");
out->print_cr(" \"a\" is average time for each phase, look at levels to see if average makes sense.");
out->print_cr(" \"lvls\" are quantiles: 0%% (minimum), 25%%, 50%% (median), 75%%, 100%% (maximum).");