src/share/vm/runtime/sweeper.cpp

@@ -401,10 +401,12 @@
 
 void NMethodSweeper::sweep_code_cache() {
   ResourceMark rm;
   Ticks sweep_start_counter = Ticks::now();
 
+  log_debug(codecache, sweep, start)("CodeCache flushing");
+
   int flushed_count                = 0;
   int zombified_count              = 0;
   int flushed_c2_count     = 0;
 
   if (PrintMethodFlushing && Verbose) {

@@ -498,10 +500,14 @@
   if(PrintMethodFlushing) {
     tty->print_cr("### sweeper:      sweep time(" JLONG_FORMAT "): ", sweep_time.value());
   }
 #endif
 
+  Log(codecache, sweep) log;
+  if (log.is_debug()) {
+    CodeCache::print_summary(log.debug_stream(), false);
+  }
   log_sweep("finished");
 
   // Sweeper is the only case where memory is released, check here if it
   // is time to restart the compiler. Only checking if there is a certain
   // amount of free memory in the code cache might lead to re-enabling

@@ -511,10 +517,11 @@
   // it only makes sense to re-enable compilation if we have actually freed memory.
   // Note that typically several kB are released for sweeping 16MB of the code
   // cache. As a result, 'freed_memory' > 0 to restart the compiler.
   if (!CompileBroker::should_compile_new_jobs() && (freed_memory > 0)) {
     CompileBroker::set_should_compile_new_jobs(CompileBroker::run_compilation);
+    log.debug("restart compiler");
     log_sweep("restart_compiler");
   }
 }
 
 /**