src/share/vm/runtime/sweeper.cpp

*** 401,410 ****
--- 401,412 ----
  
  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) {
*** 498,507 ****
--- 500,513 ----
    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
*** 511,520 ****
--- 517,527 ----
    // 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");
    }
  }
  
  /**