1 /*
   2  * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   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 // Sets the default values for platform dependent flags used by the runtime system.
  26 // (see globals.hpp)
  27 
  28 define_pd_global(bool, DontYieldALot,            true); // Determined in the design center
  29 #ifdef AMD64
  30 define_pd_global(intx, ThreadStackSize,          1024); // 0 => use system default
  31 define_pd_global(intx, VMThreadStackSize,        1024);
  32 define_pd_global(uintx,JVMInvokeMethodSlack,     8*K);
  33 #else
  34 // ThreadStackSize 320 allows a couple of test cases to run while
  35 // keeping the number of threads that can be created high.
  36 define_pd_global(intx, ThreadStackSize,          320);
  37 define_pd_global(intx, VMThreadStackSize,        512);
  38 define_pd_global(uintx,JVMInvokeMethodSlack,     10*K);
  39 #endif // AMD64
  40 
  41 define_pd_global(intx, CompilerThreadStackSize,  0);
  42 
  43 // Only used on 64 bit platforms
  44 define_pd_global(uintx,HeapBaseMinAddress,       256*M);
  45 // Only used on 64 bit Windows platforms
  46 define_pd_global(bool, UseVectoredExceptions,    false);