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 //

    26 // Sets the default values for platform dependent flags used by the server compiler.

    27 // (see c2_globals.hpp).  Alpha-sorted.

    28 

    29 define_pd_global(bool, BackgroundCompilation,        true);

    30 define_pd_global(bool, UseTLAB,                      true);

    31 define_pd_global(bool, ResizeTLAB,                   true);

    32 define_pd_global(bool, CICompileOSR,                 true);

    33 define_pd_global(bool, InlineIntrinsics,             true);

    34 define_pd_global(bool, PreferInterpreterNativeStubs, false);

    35 define_pd_global(bool, ProfileTraps,                 true);

    36 define_pd_global(bool, UseOnStackReplacement,        true);

    37 #ifdef CC_INTERP

    38 define_pd_global(bool, ProfileInterpreter,           false);

    39 #else

    40 define_pd_global(bool, ProfileInterpreter,           true);

    41 #endif // CC_INTERP

    42 define_pd_global(bool, TieredCompilation,            false);

    43 #ifdef TIERED

    44 define_pd_global(intx, CompileThreshold,             1000);

    45 #else

    46 define_pd_global(intx, CompileThreshold,             10000);

    47 #endif // TIERED

    48 define_pd_global(intx, Tier2CompileThreshold,        10000);

    49 define_pd_global(intx, Tier3CompileThreshold,        20000 );

    50 define_pd_global(intx, Tier4CompileThreshold,        40000 );

    51 

    52 define_pd_global(intx, BackEdgeThreshold,            100000);

    53 define_pd_global(intx, Tier2BackEdgeThreshold,       100000);

    54 define_pd_global(intx, Tier3BackEdgeThreshold,       100000);

    55 define_pd_global(intx, Tier4BackEdgeThreshold,       100000);

    56 

    57 define_pd_global(intx, OnStackReplacePercentage,     140);

    58 define_pd_global(intx, ConditionalMoveLimit,         3);

    59 define_pd_global(intx, FLOATPRESSURE,                6);

    60 define_pd_global(intx, FreqInlineSize,               325);

    61 #ifdef AMD64

    62 define_pd_global(intx, INTPRESSURE,                  13);

    63 define_pd_global(intx, InteriorEntryAlignment,       16);

    64 define_pd_global(intx, NewRatio,                     2);

    65 define_pd_global(intx, NewSizeThreadIncrease, ScaleForWordSize(4*K));

    66 define_pd_global(intx, LoopUnrollLimit,              60);

    67 // InitialCodeCacheSize derived from specjbb2000 run.

    68 define_pd_global(intx, InitialCodeCacheSize,         2496*K); // Integral multiple of CodeCacheExpansionSize

    69 define_pd_global(intx, CodeCacheExpansionSize,       64*K);

    70 

    71 // Ergonomics related flags

    72 define_pd_global(uintx, DefaultMaxRAM, 32*G);

    73 #else

    74 define_pd_global(intx, INTPRESSURE,                  6);

    75 define_pd_global(intx, InteriorEntryAlignment,       4);

    76 define_pd_global(intx, NewRatio,                     8); // Design center runs on 1.3.1

    77 define_pd_global(intx, NewSizeThreadIncrease,        4*K);

    78 define_pd_global(intx, LoopUnrollLimit,              50); // Design center runs on 1.3.1

    79 // InitialCodeCacheSize derived from specjbb2000 run.

    80 define_pd_global(intx, InitialCodeCacheSize,         2304*K); // Integral multiple of CodeCacheExpansionSize

    81 define_pd_global(intx, CodeCacheExpansionSize,       32*K);

    82 

    83 // Ergonomics related flags

    84 define_pd_global(uintx, DefaultMaxRAM, 1*G);

    85 #endif // AMD64

    86 define_pd_global(intx, OptoLoopAlignment,            16);

    87 define_pd_global(intx, RegisterCostAreaRatio,        16000);

    88 

    89 // Peephole and CISC spilling both break the graph, and so makes the

    90 // scheduler sick.

    91 define_pd_global(bool, OptoPeephole,                 true);

    92 define_pd_global(bool, UseCISCSpill,                 true);

    93 define_pd_global(bool, OptoScheduling,               false);

    94 define_pd_global(bool, OptoBundling,                 false);

    95 

    96 define_pd_global(intx, ReservedCodeCacheSize,        48*M);

    97 define_pd_global(uintx,CodeCacheMinBlockLength,      4);

    98 

    99 // Heap related flags

   100 define_pd_global(uintx, PermSize,    ScaleForWordSize(16*M));

   101 define_pd_global(uintx, MaxPermSize, ScaleForWordSize(64*M));

   102 

   103 // Ergonomics related flags

   104 define_pd_global(bool, NeverActAsServerClassMachine, false);