Mon, 11 Oct 2010 04:18:58 -0700
6829194: JSR 292 needs to support compressed oops
Reviewed-by: kvn, jrose
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.
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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
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23 */
25 // Sets the default values for platform dependent flags used by the server compiler.
26 // (see c2_globals.hpp). Alpha-sorted.
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 define_pd_global(intx, CompileThreshold, 10000);
41 define_pd_global(intx, BackEdgeThreshold, 140000);
43 define_pd_global(intx, OnStackReplacePercentage, 140);
44 define_pd_global(intx, ConditionalMoveLimit, 4);
45 define_pd_global(intx, FLOATPRESSURE, 52); // C2 on V9 gets to use all the float/double registers
46 define_pd_global(intx, FreqInlineSize, 175);
47 define_pd_global(intx, INTPRESSURE, 48); // large register set
48 define_pd_global(intx, InteriorEntryAlignment, 16); // = CodeEntryAlignment
49 define_pd_global(intx, NewSizeThreadIncrease, ScaleForWordSize(4*K));
50 define_pd_global(intx, RegisterCostAreaRatio, 12000);
51 define_pd_global(bool, UseTLAB, true);
52 define_pd_global(bool, ResizeTLAB, true);
53 define_pd_global(intx, LoopUnrollLimit, 60); // Design center runs on 1.3.1
55 // Peephole and CISC spilling both break the graph, and so makes the
56 // scheduler sick.
57 define_pd_global(bool, OptoPeephole, false);
58 define_pd_global(bool, UseCISCSpill, false);
59 define_pd_global(bool, OptoBundling, false);
60 define_pd_global(bool, OptoScheduling, true);
62 #ifdef _LP64
63 // We need to make sure that all generated code is within
64 // 2 gigs of the libjvm.so runtime routines so we can use
65 // the faster "call" instruction rather than the expensive
66 // sequence of instructions to load a 64 bit pointer.
67 //
68 // InitialCodeCacheSize derived from specjbb2000 run.
69 define_pd_global(intx, InitialCodeCacheSize, 2048*K); // Integral multiple of CodeCacheExpansionSize
70 define_pd_global(intx, ReservedCodeCacheSize, 48*M);
71 define_pd_global(intx, CodeCacheExpansionSize, 64*K);
73 // Ergonomics related flags
74 define_pd_global(uint64_t,MaxRAM, 128ULL*G);
75 #else
76 // InitialCodeCacheSize derived from specjbb2000 run.
77 define_pd_global(intx, InitialCodeCacheSize, 1536*K); // Integral multiple of CodeCacheExpansionSize
78 define_pd_global(intx, ReservedCodeCacheSize, 32*M);
79 define_pd_global(intx, CodeCacheExpansionSize, 32*K);
80 // Ergonomics related flags
81 define_pd_global(uint64_t,MaxRAM, 4ULL*G);
82 #endif
83 define_pd_global(uintx,CodeCacheMinBlockLength, 4);
85 // Heap related flags
86 define_pd_global(uintx,PermSize, ScaleForWordSize(16*M));
87 define_pd_global(uintx,MaxPermSize, ScaleForWordSize(64*M));
89 // Ergonomics related flags
90 define_pd_global(bool, NeverActAsServerClassMachine, false);