1 /*

     2  * Copyright (c) 2017, Red Hat, Inc. and/or its affiliates.

     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 SHARE_VM_GC_EPSILON_GLOBALS_HPP

    26 #define SHARE_VM_GC_EPSILON_GLOBALS_HPP

    27 

    28 #include "runtime/globals.hpp"

    29 //

    30 // Defines all globals flags used by the Epsilon GC.

    31 //

    32 

    33 #define EPSILON_FLAGS(develop, \

    34                  develop_pd, \

    35                  product, \

    36                  product_pd, \

    37                  diagnostic, \

    38                  diagnostic_pd, \

    39                  experimental, \

    40                  notproduct, \

    41                  manageable, \

    42                  product_rw, \

    43                  range, \

    44                  constraint, \

    45                  writeable) \

    46                                                                             \

    47   experimental(size_t, EpsilonMaxTLABSize, 4 * M,                           \

    48           "Max TLAB size to use with Epsilon GC. Larger value improves "    \

    49           "performance at the expense of per-thread memory waste. This "    \

    50           "asks TLAB machinery to cap TLAB sizes at this value")            \

    51           range(1, max_intx)                                                \

    52                                                                             \

    53   experimental(size_t, EpsilonMinHeapExpand, 128 * M,                       \

    54           "Min expansion step for heap. Larger value improves performance " \

    55           "at the potential expense of memory waste.")                      \

    56           range(1, max_intx)

    57 

    58 EPSILON_FLAGS(DECLARE_DEVELOPER_FLAG, \

    59          DECLARE_PD_DEVELOPER_FLAG, \

    60          DECLARE_PRODUCT_FLAG, \

    61          DECLARE_PD_PRODUCT_FLAG, \

    62          DECLARE_DIAGNOSTIC_FLAG, \

    63          DECLARE_PD_DIAGNOSTIC_FLAG, \

    64          DECLARE_EXPERIMENTAL_FLAG, \

    65          DECLARE_NOTPRODUCT_FLAG, \

    66          DECLARE_MANAGEABLE_FLAG, \

    67          DECLARE_PRODUCT_RW_FLAG, \

    68          IGNORE_RANGE, \

    69          IGNORE_CONSTRAINT, \

    70          IGNORE_WRITEABLE)

    71 

    72 #endif // SHARE_VM_GC_EPSILON_GLOBALS_HPP