test/hotspot/gtest/memory/test_metaspace_allocation.cpp

rev 58565 : 8238358: Implementation of JEP 371: Hidden Classes
Reviewed-by: duke
Contributed-by: mandy.chung@oracle.com, lois.foltan@oracle.com, david.holmes@oracle.com, harold.seigel@oracle.com, serguei.spitsyn@oracle.com, alex.buckley@oracle.com, jamsheed.c.m@oracle.com

*** 1,7 ****
  /*
!  * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
   * Copyright (c) 2018, SAP.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
--- 1,7 ----
  /*
!  * Copyright (c) 2018, 2020, Oracle and/or its affiliates. All rights reserved.
   * Copyright (c) 2018, SAP.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
*** 100,112 ****
      assert(_spaces[i].space == NULL && _spaces[i].allocated == 0, "Sanity");
      if (_spaces[i].lock == NULL) {
        _spaces[i].lock = new Mutex(Monitor::native, "gtest-MetaspaceAllocationTest-lock", false, Monitor::_safepoint_check_never);
        ASSERT_TRUE(_spaces[i].lock != NULL);
      }
!     // Let every ~10th space be an unsafe anonymous one to test different allocation patterns.
      const Metaspace::MetaspaceType msType = (os::random() % 100 < 10) ?
!       Metaspace::UnsafeAnonymousMetaspaceType : Metaspace::StandardMetaspaceType;
      {
        // Pull lock during space creation, since this is what happens in the VM too
        // (see ClassLoaderData::metaspace_non_null(), which we mimick here).
        MutexLocker ml(_spaces[i].lock,  Mutex::_no_safepoint_check_flag);
        _spaces[i].space = new ClassLoaderMetaspace(_spaces[i].lock, msType);
--- 100,112 ----
      assert(_spaces[i].space == NULL && _spaces[i].allocated == 0, "Sanity");
      if (_spaces[i].lock == NULL) {
        _spaces[i].lock = new Mutex(Monitor::native, "gtest-MetaspaceAllocationTest-lock", false, Monitor::_safepoint_check_never);
        ASSERT_TRUE(_spaces[i].lock != NULL);
      }
!     // Let every ~10th space be a short-lived one to test different allocation patterns.
      const Metaspace::MetaspaceType msType = (os::random() % 100 < 10) ?
!       Metaspace::ClassMirrorHolderMetaspaceType : Metaspace::StandardMetaspaceType;
      {
        // Pull lock during space creation, since this is what happens in the VM too
        // (see ClassLoaderData::metaspace_non_null(), which we mimick here).
        MutexLocker ml(_spaces[i].lock,  Mutex::_no_safepoint_check_flag);
        _spaces[i].space = new ClassLoaderMetaspace(_spaces[i].lock, msType);