1 /*
2 * Copyright (c) 2001, 2016, 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 *
180
181 size_t allocated() const { return _allocated; }
182 size_t wasted() const { return _wasted; }
183 size_t unused() const { return _unused; }
184 size_t used() const { return allocated() - (wasted() + unused()); }
185 size_t undo_wasted() const { return _undo_wasted; }
186
187 static const size_t min_size() {
188 return PLAB::min_size();
189 }
190
191 static const size_t max_size() {
192 return PLAB::max_size();
193 }
194
195 // Calculates plab size for current number of gc worker threads.
196 size_t desired_plab_sz(uint no_of_gc_workers);
197
198 // Updates the current desired PLAB size. Computes the new desired PLAB size with one gc worker thread,
199 // updates _desired_plab_sz and clears sensor accumulators.
200 virtual void adjust_desired_plab_sz();
201
202 inline void add_allocated(size_t v);
203
204 inline void add_unused(size_t v);
205
206 inline void add_wasted(size_t v);
207
208 inline void add_undo_wasted(size_t v);
209 };
210
211 #endif // SHARE_VM_GC_SHARED_PLAB_HPP
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1 /*
2 * Copyright (c) 2001, 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 *
180
181 size_t allocated() const { return _allocated; }
182 size_t wasted() const { return _wasted; }
183 size_t unused() const { return _unused; }
184 size_t used() const { return allocated() - (wasted() + unused()); }
185 size_t undo_wasted() const { return _undo_wasted; }
186
187 static const size_t min_size() {
188 return PLAB::min_size();
189 }
190
191 static const size_t max_size() {
192 return PLAB::max_size();
193 }
194
195 // Calculates plab size for current number of gc worker threads.
196 size_t desired_plab_sz(uint no_of_gc_workers);
197
198 // Updates the current desired PLAB size. Computes the new desired PLAB size with one gc worker thread,
199 // updates _desired_plab_sz and clears sensor accumulators.
200 void adjust_desired_plab_sz();
201 // helper for adjust_desired_plab_sz().
202 virtual size_t adjust_desired_plab_sz_helper();
203
204 inline void add_allocated(size_t v);
205
206 inline void add_unused(size_t v);
207
208 inline void add_wasted(size_t v);
209
210 inline void add_undo_wasted(size_t v);
211 };
212
213 #endif // SHARE_VM_GC_SHARED_PLAB_HPP
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