5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 # include "incls/_precompiled.incl"
  26 # include "incls/_sweeper.cpp.incl"












  27 
  28 long      NMethodSweeper::_traversals = 0;   // No. of stack traversals performed
  29 nmethod*  NMethodSweeper::_current = NULL;   // Current nmethod
  30 int       NMethodSweeper::_seen = 0 ;        // No. of nmethods we have currently processed in current pass of CodeCache
  31 
  32 volatile int NMethodSweeper::_invocations = 0;   // No. of invocations left until we are completed with this pass
  33 volatile int NMethodSweeper::_sweep_started = 0; // Whether a sweep is in progress.
  34 
  35 jint      NMethodSweeper::_locked_seen = 0;
  36 jint      NMethodSweeper::_not_entrant_seen_on_stack = 0;
  37 bool      NMethodSweeper::_rescan = false;
  38 bool      NMethodSweeper::_do_sweep = false;
  39 bool      NMethodSweeper::_was_full = false;
  40 jint      NMethodSweeper::_advise_to_sweep = 0;
  41 jlong     NMethodSweeper::_last_was_full = 0;
  42 uint      NMethodSweeper::_highest_marked = 0;
  43 long      NMethodSweeper::_was_full_traversal = 0;
  44 
  45 class MarkActivationClosure: public CodeBlobClosure {
  46 public:

   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "code/codeCache.hpp"
  27 #include "code/nmethod.hpp"
  28 #include "compiler/compileBroker.hpp"
  29 #include "memory/resourceArea.hpp"
  30 #include "oops/methodOop.hpp"
  31 #include "runtime/atomic.hpp"
  32 #include "runtime/compilationPolicy.hpp"
  33 #include "runtime/mutexLocker.hpp"
  34 #include "runtime/os.hpp"
  35 #include "runtime/sweeper.hpp"
  36 #include "runtime/vm_operations.hpp"
  37 #include "utilities/events.hpp"
  38 #include "utilities/xmlstream.hpp"
  39 
  40 long      NMethodSweeper::_traversals = 0;   // No. of stack traversals performed
  41 nmethod*  NMethodSweeper::_current = NULL;   // Current nmethod
  42 int       NMethodSweeper::_seen = 0 ;        // No. of nmethods we have currently processed in current pass of CodeCache
  43 
  44 volatile int NMethodSweeper::_invocations = 0;   // No. of invocations left until we are completed with this pass
  45 volatile int NMethodSweeper::_sweep_started = 0; // Whether a sweep is in progress.
  46 
  47 jint      NMethodSweeper::_locked_seen = 0;
  48 jint      NMethodSweeper::_not_entrant_seen_on_stack = 0;
  49 bool      NMethodSweeper::_rescan = false;
  50 bool      NMethodSweeper::_do_sweep = false;
  51 bool      NMethodSweeper::_was_full = false;
  52 jint      NMethodSweeper::_advise_to_sweep = 0;
  53 jlong     NMethodSweeper::_last_was_full = 0;
  54 uint      NMethodSweeper::_highest_marked = 0;
  55 long      NMethodSweeper::_was_full_traversal = 0;
  56 
  57 class MarkActivationClosure: public CodeBlobClosure {
  58 public: