1 /* 2 * Copyright (c) 2017, 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 #include "precompiled.hpp" 25 #include "gc/z/zLargePages.hpp" 26 #include "logging/log.hpp" 27 #include "runtime/os.hpp" 28 29 ZLargePages::State ZLargePages::_state; 30 31 void ZLargePages::initialize() { 32 initialize_platform(); 33 34 log_info(gc, init)("Memory: " JULONG_FORMAT "M", os::physical_memory() / M); 35 log_info(gc, init)("Large Page Support: %s", to_string()); 36 } 37 38 const char* ZLargePages::to_string() { 39 switch (_state) { 40 case Explicit: 41 return "Enabled (Explicit)"; 42 43 case Transparent: 44 return "Enabled (Transparent)"; 45 46 default: 47 return "Disabled"; 48 } 49 }