1.1 --- a/src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp Tue Nov 10 11:32:48 2009 -0800
1.2 +++ b/src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp Fri Nov 13 11:55:26 2009 -0800
1.3 @@ -1516,8 +1516,31 @@
1.4 (end_time_sec - _recent_prev_end_times_for_all_gcs_sec->oldest()) * 1000.0;
1.5 update_recent_gc_times(end_time_sec, elapsed_ms);
1.6 _recent_avg_pause_time_ratio = _recent_gc_times_ms->sum()/interval_ms;
1.7 - // using 1.01 to account for floating point inaccuracies
1.8 - assert(recent_avg_pause_time_ratio() < 1.01, "All GC?");
1.9 + if (recent_avg_pause_time_ratio() < 0.0 ||
1.10 + (recent_avg_pause_time_ratio() - 1.0 > 0.0)) {
1.11 +#ifndef PRODUCT
1.12 + // Dump info to allow post-facto debugging
1.13 + gclog_or_tty->print_cr("recent_avg_pause_time_ratio() out of bounds");
1.14 + gclog_or_tty->print_cr("-------------------------------------------");
1.15 + gclog_or_tty->print_cr("Recent GC Times (ms):");
1.16 + _recent_gc_times_ms->dump();
1.17 + gclog_or_tty->print_cr("(End Time=%3.3f) Recent GC End Times (s):", end_time_sec);
1.18 + _recent_prev_end_times_for_all_gcs_sec->dump();
1.19 + gclog_or_tty->print_cr("GC = %3.3f, Interval = %3.3f, Ratio = %3.3f",
1.20 + _recent_gc_times_ms->sum(), interval_ms, recent_avg_pause_time_ratio());
1.21 + // TEMPORARY: In debug mode, terminate the JVM, so nightly testing explicitly
1.22 + // flags the sighting by failing the test.
1.23 + assert(false, "Debugging data for CR 6898948 has been dumped above");
1.24 +#else // PRODUCT
1.25 + // Clip ratio between 0.0 and 1.0
1.26 + if (_recent_avg_pause_time_ratio < 0.0) {
1.27 + _recent_avg_pause_time_ratio = 0.0;
1.28 + } else {
1.29 + assert(_recent_avg_pause_time_ratio - 1.0 > 0.0, "Ctl-point invariant");
1.30 + _recent_avg_pause_time_ratio = 1.0;
1.31 + }
1.32 +#endif // PRODUCT
1.33 + }
1.34 }
1.35
1.36 if (G1PolicyVerbose > 1) {
