RFR: Apply UL to PrintCodeCacheOnCompilation

[chihiro ito]

Hi all,

I apply Unified JVM Logging to log of PrintCodeCacheOnCompilation 
option. Logs which applied this is following.
Could you possibly review for this following small change? If review is 
ok, please commit this as cito.

Sample Log:
[1.370s][debug][compilation,codecache] CodeHeap 'non-profiled nmethods': 
size=120036Kb used=13Kb max_used=13Kb free=120022Kb
[1.372s][debug][compilation,codecache] CodeHeap 'profiled nmethods': 
size=120032Kb used=85Kb max_used=85Kb free=119946Kb
[1.372s][debug][compilation,codecache] CodeHeap 'non-nmethods': 
size=5692Kb used=2648Kb max_used=2655Kb free=3043Kb

Source:
diff --git a/src/share/vm/compiler/compileBroker.cpp 
b/src/share/vm/compiler/compileBroker.cpp
--- a/src/share/vm/compiler/compileBroker.cpp
+++ b/src/share/vm/compiler/compileBroker.cpp
@@ -1726,6 +1726,34 @@
    tty->print("%s", s.as_string());
  }

+// wrapper for CodeCache::print_summary() using outputStream
+static void codecache_print(outputStream* out, bool detailed)
+{
+  ResourceMark rm;
+  stringStream s;
+
+  // Dump code cache into a buffer
+  {
+    MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
+    CodeCache::print_summary(&s, detailed);
+  }
+
+  char* summary = s.as_string();
+  char* cr_pos;
+
+  do {
+    cr_pos = strchr(summary, '\n');
+    if (cr_pos != NULL) {
+      *cr_pos = '\0';
+    }
+    if (strlen(summary)!=0) {
+      out->print_cr("%s", summary);
+    }
+
+    summary = cr_pos + 1;
+  } while (cr_pos != NULL);
+}
+
  void CompileBroker::post_compile(CompilerThread* thread, CompileTask* 
task, EventCompilation& event, bool success, ciEnv* ci_env) {

    if (success) {
@@ -1939,6 +1967,10 @@
      tty->print_cr("time: %d inlined: %d bytes", 
(int)time.milliseconds(), task->num_inlined_bytecodes());
    }

+  Log(compilation, codecache) log;
+  if (log.is_debug())
+    codecache_print(log.debug_stream(), /* detailed= */ false);
+
    if (PrintCodeCacheOnCompilation)
      codecache_print(/* detailed= */ false);


Regards,
Chihiro


-- 

Chihiro Ito | Principal Consultant | +81.90.6148.8815
Oracle <http://www.oracle.com> Consultant
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