6934758: Expose the break down of clean up task time during safepoint

Use -XX:+TraceSafepointCleanupTime to print out the details of each clean up tasks. Reviewed-by: dholmes, ysr
2025-08-27 23:04:50 +02:00 · 2010-03-13 16:32:49 -08:00 · 2010-03-13 16:32:49 -08:00 · 09f8dd45d1
commit 09f8dd45d1
parent 053d7adeb2
2 changed files with 8 additions and 4 deletions
--- a/hotspot/src/share/vm/runtime/globals.hpp
+++ b/hotspot/src/share/vm/runtime/globals.hpp
@ -2289,6 +2289,10 @@ class CommandLineFlags {
          "print safepoint statistics only when safepoint takes"            \
          " more than PrintSafepointSatisticsTimeout in millis")            \
                                                                            \
+  product(bool, TraceSafepointCleanupTime, false,                           \
+          "print the break down of clean up tasks performed during"         \
+          " safepoint")                                                     \
+                                                                            \
  develop(bool, InlineAccessors, true,                                      \
          "inline accessor methods (get/set)")                              \
                                                                            \