changeset 48472:de2e4ff493bf

8152957: Improve specificity of safepoint logging to print safepoint type Summary: upgrade safepoint begin logs to Info logging, which has the reason. Reviewed-by: dholmes, hseigel, zgu
author coleenp
date Wed, 20 Dec 2017 10:05:09 -0500
parents d55bee3727de
children 9a5bcee1a706
files src/hotspot/share/runtime/safepoint.cpp
diffstat 1 files changed, 4 insertions(+), 6 deletions(-) [+]
line wrap: on
line diff
--- a/src/hotspot/share/runtime/safepoint.cpp	Tue Dec 19 17:31:53 2017 -0500
+++ b/src/hotspot/share/runtime/safepoint.cpp	Wed Dec 20 10:05:09 2017 -0500
@@ -103,7 +103,7 @@
 
   int nof_threads = Threads::number_of_threads();
 
-  log_debug(safepoint)("Safepoint synchronization initiated. (%d)", nof_threads);
+  log_debug(safepoint)("Safepoint synchronization initiated. (%d threads)", nof_threads);
 
   RuntimeService::record_safepoint_begin();
 
@@ -407,9 +407,7 @@
   // Update the count of active JNI critical regions
   GCLocker::set_jni_lock_count(_current_jni_active_count);
 
-  if (log_is_enabled(Debug, safepoint)) {
-    log_debug(safepoint)("Entering safepoint region: %s", VMThread::vm_safepoint_description());
-  }
+  log_info(safepoint)("Entering safepoint region: %s", VMThread::vm_safepoint_description());
 
   RuntimeService::record_safepoint_synchronized();
   if (PrintSafepointStatistics) {
@@ -496,14 +494,14 @@
           cur_state->restart(); // TSS _running
           SafepointMechanism::disarm_local_poll(current); // release store, local state -> polling page
         }
-        log_debug(safepoint)("Leaving safepoint region");
+        log_info(safepoint)("Leaving safepoint region");
       } else {
         // Set to not synchronized, so the threads will not go into the signal_thread_blocked method
         // when they get restarted.
         _state = _not_synchronized;
         OrderAccess::fence();
 
-        log_debug(safepoint)("Leaving safepoint region");
+        log_info(safepoint)("Leaving safepoint region");
 
         // Start suspended threads
         jtiwh.rewind();