test/runtime/6925573/SortMethodsTest.java

rev 6248 : [mq]: 6959423

*** 45,55 ****
  import javax.tools.SimpleJavaFileObject;
  import javax.tools.StandardJavaFileManager;
  import javax.tools.ToolProvider;
  
  /*
-  * @ignore 6959423
   * @test SortMethodsTest
   * @bug 6925573
   * @summary verify that class loading does not need quadratic time with regard to the number of class
  methods.
   * @run main SortMethodsTest
--- 45,54 ----
*** 80,90 ****
      JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
      DiagnosticCollector<JavaFileObject> diags = new DiagnosticCollector<JavaFileObject>();
      final String cName = new String("ManyMethodsClass");
      Vector<Long> results = new Vector<Long>();
  
!     for (int i = 6; i < 600000; i*=10) {
        String klass =  createClass(cName, i);
        JavaMemoryFileObject file = new JavaMemoryFileObject(cName, klass);
        MemoryFileManager mfm = new MemoryFileManager(comp.getStandardFileManager(diags, null, null), file);
        CompilationTask task = comp.getTask(null, mfm, diags, null, null, Arrays.asList(file));
  
--- 79,89 ----
      JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
      DiagnosticCollector<JavaFileObject> diags = new DiagnosticCollector<JavaFileObject>();
      final String cName = new String("ManyMethodsClass");
      Vector<Long> results = new Vector<Long>();
      
!     for (int i = 6; i < 60000; i*=10) {
        String klass =  createClass(cName, i);
        JavaMemoryFileObject file = new JavaMemoryFileObject(cName, klass);
        MemoryFileManager mfm = new MemoryFileManager(comp.getStandardFileManager(diags, null, null), file);
        CompilationTask task = comp.getTask(null, mfm, diags, null, null, Arrays.asList(file));
  
*** 119,129 ****
        long ratio = normalized2/normalized1;
        lastRatio = ratio;
        System.out.println("10 x more methods requires " + ratio + " x more time");
      }
      // The following is just vague estimation but seems to work on current x86_64 and sparcv9 machines
!     if (lastRatio > 80) {
        throw new RuntimeException("ATTENTION: it seems that class loading needs quadratic time with regard to the number of class methods!!!");
      }
    }
  }
  
--- 118,128 ----
        long ratio = normalized2/normalized1;
        lastRatio = ratio;
        System.out.println("10 x more methods requires " + ratio + " x more time");
      }
      // The following is just vague estimation but seems to work on current x86_64 and sparcv9 machines
!     if (lastRatio > 60) {
        throw new RuntimeException("ATTENTION: it seems that class loading needs quadratic time with regard to the number of class methods!!!");
      }
    }
  }