| /* |
| * Copyright (c) 2020, Red Hat, Inc. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "gc/epsilon/epsilonHeap.hpp" |
| #include "gc/epsilon/epsilonInitLogger.hpp" |
| #include "logging/log.hpp" |
| #include "runtime/globals.hpp" |
| #include "runtime/globals_extension.hpp" |
| #include "utilities/globalDefinitions.hpp" |
| |
| void EpsilonInitLogger::print_gc_specific() { |
| // Warn users that non-resizable heap might be better for some configurations. |
| // We are not adjusting the heap size by ourselves, because it affects startup time. |
| if (InitialHeapSize != MaxHeapSize) { |
| log_warning(gc, init)("Consider setting -Xms equal to -Xmx to avoid resizing hiccups"); |
| } |
| |
| // Warn users that AlwaysPreTouch might be better for some configurations. |
| // We are not turning this on by ourselves, because it affects startup time. |
| if (FLAG_IS_DEFAULT(AlwaysPreTouch) && !AlwaysPreTouch) { |
| log_warning(gc, init)("Consider enabling -XX:+AlwaysPreTouch to avoid memory commit hiccups"); |
| } |
| |
| if (UseTLAB) { |
| size_t max_tlab = EpsilonHeap::heap()->max_tlab_size() * HeapWordSize; |
| log_info(gc, init)("TLAB Size Max: " SIZE_FORMAT "%s", |
| byte_size_in_exact_unit(max_tlab), exact_unit_for_byte_size(max_tlab)); |
| if (EpsilonElasticTLAB) { |
| log_info(gc, init)("TLAB Size Elasticity: %.2fx", EpsilonTLABElasticity); |
| } |
| if (EpsilonElasticTLABDecay) { |
| log_info(gc, init)("TLAB Size Decay Time: " SIZE_FORMAT "ms", EpsilonTLABDecayTime); |
| } |
| } else { |
| log_info(gc, init)("TLAB: Disabled"); |
| } |
| } |
| |
| void EpsilonInitLogger::print() { |
| EpsilonInitLogger init_log; |
| init_log.print_all(); |
| } |