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. 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. 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 define_pd_global(intx, CompileThreshold, 10000); 41 define_pd_global(intx, BackEdgeThreshold, 140000); 42 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 54 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); 61 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); 72 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); 84 85 // Heap related flags 86 define_pd_global(uintx,PermSize, ScaleForWordSize(16*M)); 87 define_pd_global(uintx,MaxPermSize, ScaleForWordSize(64*M)); 88 89 // Ergonomics related flags 90 define_pd_global(bool, NeverActAsServerClassMachine, false);