1 /* 2 * Copyright (c) 2008, 2015, 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 #ifndef CPU_ARM_VM_C2_GLOBALS_ARM_HPP 26 #define CPU_ARM_VM_C2_GLOBALS_ARM_HPP 27 28 #include "utilities/globalDefinitions.hpp" 29 #include "utilities/macros.hpp" 30 31 // 32 // Sets the default values for platform dependent flags used by the server compiler. 33 // (see c2_globals.hpp). Alpha-sorted. 34 35 define_pd_global(bool, BackgroundCompilation, true); 36 define_pd_global(bool, CICompileOSR, true); 37 define_pd_global(bool, InlineIntrinsics, false); 38 define_pd_global(bool, PreferInterpreterNativeStubs, false); 39 define_pd_global(bool, ProfileTraps, true); 40 define_pd_global(bool, UseOnStackReplacement, true); 41 define_pd_global(bool, ProfileInterpreter, true); 42 #ifdef AARCH64 43 define_pd_global(bool, TieredCompilation, trueInTiered); 44 #else 45 define_pd_global(bool, TieredCompilation, false); 46 #endif 47 define_pd_global(intx, CompileThreshold, 10000); 48 49 define_pd_global(intx, OnStackReplacePercentage, 140); 50 define_pd_global(intx, ConditionalMoveLimit, 4); 51 // C2 gets to use all the float/double registers 52 #ifdef AARCH64 53 define_pd_global(intx, FLOATPRESSURE, 31); 54 #else 55 define_pd_global(intx, FLOATPRESSURE, 30); 56 #endif 57 define_pd_global(intx, FreqInlineSize, 175); 58 #ifdef AARCH64 59 define_pd_global(intx, INTPRESSURE, 27); 60 #else 61 define_pd_global(intx, INTPRESSURE, 12); 62 #endif 63 define_pd_global(intx, InteriorEntryAlignment, 16); // = CodeEntryAlignment 64 define_pd_global(size_t, NewSizeThreadIncrease, ScaleForWordSize(4*K)); 65 // The default setting 16/16 seems to work best. 66 // (For _228_jack 16/16 is 2% better than 4/4, 16/4, 32/32, 32/16, or 16/32.) 67 //define_pd_global(intx, OptoLoopAlignment, 16); // = 4*wordSize 68 define_pd_global(intx, RegisterCostAreaRatio, 16000); 69 define_pd_global(bool, UseTLAB, true); 70 define_pd_global(bool, ResizeTLAB, true); 71 define_pd_global(intx, LoopUnrollLimit, 60); // Design center runs on 1.3.1 72 define_pd_global(intx, LoopPercentProfileLimit, 10); 73 define_pd_global(intx, PostLoopMultiversioning, false); 74 define_pd_global(intx, MinJumpTableSize, 16); 75 76 // Peephole and CISC spilling both break the graph, and so makes the 77 // scheduler sick. 78 define_pd_global(bool, OptoPeephole, false); 79 define_pd_global(bool, UseCISCSpill, false); 80 define_pd_global(bool, OptoBundling, false); 81 define_pd_global(bool, OptoScheduling, true); 82 define_pd_global(bool, OptoRegScheduling, false); 83 define_pd_global(bool, SuperWordLoopUnrollAnalysis, false); 84 85 #ifdef _LP64 86 // We need to make sure that all generated code is within 87 // 2 gigs of the libjvm.so runtime routines so we can use 88 // the faster "call" instruction rather than the expensive 89 // sequence of instructions to load a 64 bit pointer. 90 // 91 // InitialCodeCacheSize derived from specjbb2000 run. 92 define_pd_global(size_t, InitialCodeCacheSize, 2048*K); // Integral multiple of CodeCacheExpansionSize 93 define_pd_global(size_t, ReservedCodeCacheSize, 48*M); 94 define_pd_global(size_t, NonProfiledCodeHeapSize, 21*M); 95 define_pd_global(size_t, ProfiledCodeHeapSize, 22*M); 96 define_pd_global(size_t, NonNMethodCodeHeapSize, 5*M ); 97 define_pd_global(size_t, CodeCacheExpansionSize, 64*K); 98 99 // Ergonomics related flags 100 define_pd_global(uint64_t, MaxRAM, 128ULL*G); 101 #else 102 // InitialCodeCacheSize derived from specjbb2000 run. 103 define_pd_global(size_t, InitialCodeCacheSize, 1536*K); // Integral multiple of CodeCacheExpansionSize 104 define_pd_global(size_t, ReservedCodeCacheSize, 32*M); 105 define_pd_global(size_t, NonProfiledCodeHeapSize, 13*M); 106 define_pd_global(size_t, ProfiledCodeHeapSize, 14*M); 107 define_pd_global(size_t, NonNMethodCodeHeapSize, 5*M ); 108 define_pd_global(size_t, CodeCacheExpansionSize, 32*K); 109 // Ergonomics related flags 110 define_pd_global(uint64_t, MaxRAM, 4ULL*G); 111 #endif 112 define_pd_global(uintx, CodeCacheMinBlockLength, 4); 113 define_pd_global(size_t, CodeCacheMinimumUseSpace, 400*K); 114 115 define_pd_global(bool, TrapBasedRangeChecks, false); // Not needed 116 117 // Heap related flags 118 define_pd_global(size_t, MetaspaceSize, ScaleForWordSize(16*M)); 119 120 // Ergonomics related flags 121 define_pd_global(bool, NeverActAsServerClassMachine, false); 122 123 #endif // CPU_ARM_VM_C2_GLOBALS_ARM_HPP