8004170: G1: Verbose GC output is not getting flushed to log file using JDK 8
Summary: Add flushes to G1CollectedHeap::log_gc_footer() and TraceCPUTime destructor.
Reviewed-by: jwilhelm, azeemj, brutisso
--- a/hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp Fri Nov 30 17:00:32 2012 -0800
+++ b/hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp Fri Nov 30 11:46:17 2012 -0800
@@ -3690,6 +3690,7 @@
g1_policy()->print_heap_transition();
gclog_or_tty->print_cr(", %3.7f secs]", pause_time_sec);
}
+ gclog_or_tty->flush();
}
bool
@@ -4036,10 +4037,11 @@
#endif
gc_epilogue(false);
-
- log_gc_footer(os::elapsedTime() - pause_start_sec);
}
+ // Print the remainder of the GC log output.
+ log_gc_footer(os::elapsedTime() - pause_start_sec);
+
// It is not yet to safe to tell the concurrent mark to
// start as we have some optional output below. We don't want the
// output from the concurrent mark thread interfering with this
--- a/hotspot/src/share/vm/runtime/timer.cpp Fri Nov 30 17:00:32 2012 -0800
+++ b/hotspot/src/share/vm/runtime/timer.cpp Fri Nov 30 11:46:17 2012 -0800
@@ -210,8 +210,9 @@
} else {
_logfile->print("[Error in TraceCPUTime]");
}
- if (_print_cr) {
+ if (_print_cr) {
_logfile->print_cr("");
}
+ _logfile->flush();
}
}