c2_globals_x86.hpp revision 1472:c18cbe5936b8 
1/*
2 * Copyright (c) 2000, 2007, 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.
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23 */
24
25// Sets the default values for platform dependent flags used by the server compiler.
26// (see c2_globals.hpp).  Alpha-sorted.
27
28define_pd_global(bool, BackgroundCompilation,        true);
29define_pd_global(bool, UseTLAB,                      true);
30define_pd_global(bool, ResizeTLAB,                   true);
31define_pd_global(bool, CICompileOSR,                 true);
32define_pd_global(bool, InlineIntrinsics,             true);
33define_pd_global(bool, PreferInterpreterNativeStubs, false);
34define_pd_global(bool, ProfileTraps,                 true);
35define_pd_global(bool, UseOnStackReplacement,        true);
36#ifdef CC_INTERP
37define_pd_global(bool, ProfileInterpreter,           false);
38#else
39define_pd_global(bool, ProfileInterpreter,           true);
40#endif // CC_INTERP
41define_pd_global(bool, TieredCompilation,            false);
42#ifdef TIERED
43define_pd_global(intx, CompileThreshold,             1000);
44#else
45define_pd_global(intx, CompileThreshold,             10000);
46#endif // TIERED
47define_pd_global(intx, Tier2CompileThreshold,        10000);
48define_pd_global(intx, Tier3CompileThreshold,        20000);
49define_pd_global(intx, Tier4CompileThreshold,        40000);
50
51define_pd_global(intx, BackEdgeThreshold,            100000);
52define_pd_global(intx, Tier2BackEdgeThreshold,       100000);
53define_pd_global(intx, Tier3BackEdgeThreshold,       100000);
54define_pd_global(intx, Tier4BackEdgeThreshold,       100000);
55
56define_pd_global(intx, OnStackReplacePercentage,     140);
57define_pd_global(intx, ConditionalMoveLimit,         3);
58define_pd_global(intx, FLOATPRESSURE,                6);
59define_pd_global(intx, FreqInlineSize,               325);
60#ifdef AMD64
61define_pd_global(intx, INTPRESSURE,                  13);
62define_pd_global(intx, InteriorEntryAlignment,       16);
63define_pd_global(intx, NewSizeThreadIncrease, ScaleForWordSize(4*K));
64define_pd_global(intx, LoopUnrollLimit,              60);
65// InitialCodeCacheSize derived from specjbb2000 run.
66define_pd_global(intx, InitialCodeCacheSize,         2496*K); // Integral multiple of CodeCacheExpansionSize
67define_pd_global(intx, CodeCacheExpansionSize,       64*K);
68
69// Ergonomics related flags
70define_pd_global(uint64_t,MaxRAM,                    128ULL*G);
71#else
72define_pd_global(intx, INTPRESSURE,                  6);
73define_pd_global(intx, InteriorEntryAlignment,       4);
74define_pd_global(intx, NewSizeThreadIncrease,        4*K);
75define_pd_global(intx, LoopUnrollLimit,              50);     // Design center runs on 1.3.1
76// InitialCodeCacheSize derived from specjbb2000 run.
77define_pd_global(intx, InitialCodeCacheSize,         2304*K); // Integral multiple of CodeCacheExpansionSize
78define_pd_global(intx, CodeCacheExpansionSize,       32*K);
79
80// Ergonomics related flags
81define_pd_global(uint64_t,MaxRAM,                    4ULL*G);
82#endif // AMD64
83define_pd_global(intx, RegisterCostAreaRatio,        16000);
84
85// Peephole and CISC spilling both break the graph, and so makes the
86// scheduler sick.
87define_pd_global(bool, OptoPeephole,                 true);
88define_pd_global(bool, UseCISCSpill,                 true);
89define_pd_global(bool, OptoScheduling,               false);
90define_pd_global(bool, OptoBundling,                 false);
91
92define_pd_global(intx, ReservedCodeCacheSize,        48*M);
93define_pd_global(uintx,CodeCacheMinBlockLength,      4);
94
95// Heap related flags
96define_pd_global(uintx,PermSize,    ScaleForWordSize(16*M));
97define_pd_global(uintx,MaxPermSize, ScaleForWordSize(64*M));
98
99// Ergonomics related flags
100define_pd_global(bool, NeverActAsServerClassMachine, false);
101