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comparison src/cpu/sparc/vm/c2_globals_sparc.hpp @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children 473cce303f13
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1 /*
2 * Copyright 2000-2007 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 // Sets the default values for platform dependent flags used by the server compiler.
26 // (see c2_globals.hpp). Alpha-sorted.
27
28 define_pd_global(bool, BackgroundCompilation, true);
29 define_pd_global(bool, CICompileOSR, true);
30 define_pd_global(bool, InlineIntrinsics, false);
31 define_pd_global(bool, PreferInterpreterNativeStubs, false);
32 define_pd_global(bool, ProfileTraps, true);
33 define_pd_global(bool, UseOnStackReplacement, true);
34 #ifdef CC_INTERP
35 define_pd_global(bool, ProfileInterpreter, false);
36 #else
37 define_pd_global(bool, ProfileInterpreter, true);
38 #endif // CC_INTERP
39 define_pd_global(bool, TieredCompilation, false);
40 #ifdef TIERED
41 define_pd_global(intx, CompileThreshold, 1000);
42 define_pd_global(intx, BackEdgeThreshold, 14000);
43 #else
44 define_pd_global(intx, CompileThreshold, 10000);
45 define_pd_global(intx, BackEdgeThreshold, 140000);
46 #endif // TIERED
47
48 define_pd_global(intx, Tier2CompileThreshold, 10000); // unused level
49 define_pd_global(intx, Tier3CompileThreshold, 10000);
50 define_pd_global(intx, Tier4CompileThreshold, 40000);
51
52 define_pd_global(intx, Tier2BackEdgeThreshold, 100000);
53 define_pd_global(intx, Tier3BackEdgeThreshold, 100000);
54 define_pd_global(intx, Tier4BackEdgeThreshold, 100000);
55
56 define_pd_global(intx, OnStackReplacePercentage, 140);
57 define_pd_global(intx, ConditionalMoveLimit, 4);
58 define_pd_global(intx, FLOATPRESSURE, 52); // C2 on V9 gets to use all the float/double registers
59 define_pd_global(intx, FreqInlineSize, 175);
60 define_pd_global(intx, INTPRESSURE, 48); // large register set
61 define_pd_global(intx, InteriorEntryAlignment, 16); // = CodeEntryAlignment
62 define_pd_global(intx, NewRatio, 2);
63 define_pd_global(intx, NewSizeThreadIncrease, ScaleForWordSize(4*K));
64 // The default setting 16/16 seems to work best.
65 // (For _228_jack 16/16 is 2% better than 4/4, 16/4, 32/32, 32/16, or 16/32.)
66 define_pd_global(intx, OptoLoopAlignment, 16); // = 4*wordSize
67 define_pd_global(intx, RegisterCostAreaRatio, 12000);
68 define_pd_global(bool, UseTLAB, true);
69 define_pd_global(bool, ResizeTLAB, true);
70 define_pd_global(intx, LoopUnrollLimit, 60); // Design center runs on 1.3.1
71
72 // Peephole and CISC spilling both break the graph, and so makes the
73 // scheduler sick.
74 define_pd_global(bool, OptoPeephole, false);
75 define_pd_global(bool, UseCISCSpill, false);
76 define_pd_global(bool, OptoBundling, false);
77 define_pd_global(bool, OptoScheduling, true);
78
79 #ifdef _LP64
80 // We need to make sure that all generated code is within
81 // 2 gigs of the libjvm.so runtime routines so we can use
82 // the faster "call" instruction rather than the expensive
83 // sequence of instructions to load a 64 bit pointer.
84 //
85 // InitialCodeCacheSize derived from specjbb2000 run.
86 define_pd_global(intx, InitialCodeCacheSize, 2048*K); // Integral multiple of CodeCacheExpansionSize
87 define_pd_global(intx, ReservedCodeCacheSize, 48*M);
88 define_pd_global(intx, CodeCacheExpansionSize, 64*K);
89
90 // Ergonomics related flags
91 define_pd_global(uintx, DefaultMaxRAM, 32*G);
92 #else
93 // InitialCodeCacheSize derived from specjbb2000 run.
94 define_pd_global(intx, InitialCodeCacheSize, 1536*K); // Integral multiple of CodeCacheExpansionSize
95 define_pd_global(intx, ReservedCodeCacheSize, 32*M);
96 define_pd_global(intx, CodeCacheExpansionSize, 32*K);
97 // Ergonomics related flags
98 define_pd_global(uintx, DefaultMaxRAM, 1*G);
99 #endif
100 define_pd_global(uintx,CodeCacheMinBlockLength, 4);
101
102 // Heap related flags
103 define_pd_global(uintx, PermSize, ScaleForWordSize(16*M));
104 define_pd_global(uintx, MaxPermSize, ScaleForWordSize(64*M));
105
106 // Ergonomics related flags
107 define_pd_global(bool, NeverActAsServerClassMachine, false);