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 #include "precompiled.hpp"
26 #include "gc/g1/g1YoungGenSizer.hpp"
27 #include "gc/g1/heapRegion.hpp"
28
29 G1YoungGenSizer::G1YoungGenSizer() : _sizer_kind(SizerDefaults), _adaptive_size(true),
30 _min_desired_young_length(0), _max_desired_young_length(0) {
31 if (FLAG_IS_CMDLINE(NewRatio)) {
32 if (FLAG_IS_CMDLINE(NewSize) || FLAG_IS_CMDLINE(MaxNewSize)) {
33 warning("-XX:NewSize and -XX:MaxNewSize override -XX:NewRatio");
34 } else {
35 _sizer_kind = SizerNewRatio;
36 _adaptive_size = false;
37 return;
38 }
39 }
40
41 if (NewSize > MaxNewSize) {
42 if (FLAG_IS_CMDLINE(MaxNewSize)) {
43 warning("NewSize (" SIZE_FORMAT "k) is greater than the MaxNewSize (" SIZE_FORMAT "k). "
44 "A new max generation size of " SIZE_FORMAT "k will be used.",
45 NewSize/K, MaxNewSize/K, NewSize/K);
46 }
47 MaxNewSize = NewSize;
48 }
49
50 if (FLAG_IS_CMDLINE(NewSize)) {
51 _min_desired_young_length = MAX2((uint) (NewSize / HeapRegion::GrainBytes),
52 1U);
53 if (FLAG_IS_CMDLINE(MaxNewSize)) {
54 _max_desired_young_length =
55 MAX2((uint) (MaxNewSize / HeapRegion::GrainBytes),
56 1U);
57 _sizer_kind = SizerMaxAndNewSize;
58 _adaptive_size = _min_desired_young_length == _max_desired_young_length;
59 } else {
60 _sizer_kind = SizerNewSizeOnly;
61 }
62 } else if (FLAG_IS_CMDLINE(MaxNewSize)) {
63 _max_desired_young_length =
|
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 #include "precompiled.hpp"
26 #include "gc/g1/g1YoungGenSizer.hpp"
27 #include "gc/g1/heapRegion.hpp"
28
29 G1YoungGenSizer::G1YoungGenSizer() : _sizer_kind(SizerDefaults), _adaptive_size(true),
30 _min_desired_young_length(0), _max_desired_young_length(0) {
31 if (FLAG_IS_CMDLINE(NewRatio)) {
32 if (FLAG_IS_CMDLINE(NewSize) || FLAG_IS_CMDLINE(MaxNewSize)) {
33 log_warning(gc, ergo)("-XX:NewSize and -XX:MaxNewSize override -XX:NewRatio");
34 } else {
35 _sizer_kind = SizerNewRatio;
36 _adaptive_size = false;
37 return;
38 }
39 }
40
41 if (NewSize > MaxNewSize) {
42 if (FLAG_IS_CMDLINE(MaxNewSize)) {
43 log_warning(gc, ergo)("NewSize (" SIZE_FORMAT "k) is greater than the MaxNewSize (" SIZE_FORMAT "k). "
44 "A new max generation size of " SIZE_FORMAT "k will be used.",
45 NewSize/K, MaxNewSize/K, NewSize/K);
46 }
47 MaxNewSize = NewSize;
48 }
49
50 if (FLAG_IS_CMDLINE(NewSize)) {
51 _min_desired_young_length = MAX2((uint) (NewSize / HeapRegion::GrainBytes),
52 1U);
53 if (FLAG_IS_CMDLINE(MaxNewSize)) {
54 _max_desired_young_length =
55 MAX2((uint) (MaxNewSize / HeapRegion::GrainBytes),
56 1U);
57 _sizer_kind = SizerMaxAndNewSize;
58 _adaptive_size = _min_desired_young_length == _max_desired_young_length;
59 } else {
60 _sizer_kind = SizerNewSizeOnly;
61 }
62 } else if (FLAG_IS_CMDLINE(MaxNewSize)) {
63 _max_desired_young_length =
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