globals_windows_x86.hpp revision 642:660978a2a31a 
1/*
2 * Copyright 2000-2005 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25//
26// Sets the default values for platform dependent flags used by the runtime system.
27// (see globals.hpp)
28//
29define_pd_global(bool, DontYieldALot,            false);
30
31// Default stack size on Windows is determined by the executable (java.exe
32// has a default value of 320K/1MB [32bit/64bit]). Depending on Windows version, changing
33// ThreadStackSize to non-zero may have significant impact on memory usage.
34// See comments in os_windows.cpp.
35define_pd_global(intx, ThreadStackSize,          0); // 0 => use system default
36define_pd_global(intx, VMThreadStackSize,        0); // 0 => use system default
37
38define_pd_global(intx, SurvivorRatio,            8);
39
40#ifdef ASSERT
41define_pd_global(intx, CompilerThreadStackSize,  1024);
42#else
43define_pd_global(intx, CompilerThreadStackSize,  0);
44#endif
45
46define_pd_global(uintx, JVMInvokeMethodSlack,    8192);
47
48// Only used on 64 bit platforms
49define_pd_global(uintx, HeapBaseMinAddress,      2*G);
50// Only used on 64 bit Windows platforms
51define_pd_global(bool, UseVectoredExceptions,    false);
52