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 #include "precompiled.hpp"
26 #include "gc/g1/g1AllocRegion.inline.hpp"
27 #include "gc/g1/g1EvacStats.inline.hpp"
28 #include "gc/g1/g1CollectedHeap.inline.hpp"
29 #include "memory/resourceArea.hpp"
30 #include "runtime/orderAccess.inline.hpp"
31
32 G1CollectedHeap* G1AllocRegion::_g1h = NULL;
33 HeapRegion* G1AllocRegion::_dummy_region = NULL;
34
35 void G1AllocRegion::setup(G1CollectedHeap* g1h, HeapRegion* dummy_region) {
36 assert(_dummy_region == NULL, "should be set once");
37 assert(dummy_region != NULL, "pre-condition");
38 assert(dummy_region->free() == 0, "pre-condition");
39
40 // Make sure that any allocation attempt on this region will fail
41 // and will not trigger any asserts.
42 assert(allocate(dummy_region, 1, false) == NULL, "should fail");
43 assert(par_allocate(dummy_region, 1, false) == NULL, "should fail");
44 assert(allocate(dummy_region, 1, true) == NULL, "should fail");
45 assert(par_allocate(dummy_region, 1, true) == NULL, "should fail");
46
47 _g1h = g1h;
48 _dummy_region = dummy_region;
194 trace("released");
195 return (alloc_region == _dummy_region) ? NULL : alloc_region;
196 }
197
198 #ifndef PRODUCT
199 void G1AllocRegion::trace(const char* str, size_t min_word_size, size_t desired_word_size, size_t actual_word_size, HeapWord* result) {
200 // All the calls to trace that set either just the size or the size
201 // and the result are considered part of detailed tracing and are
202 // skipped during other tracing.
203
204 Log(gc, alloc, region) log;
205
206 if (!log.is_debug()) {
207 return;
208 }
209
210 bool detailed_info = log.is_trace();
211
212 if ((actual_word_size == 0 && result == NULL) || detailed_info) {
213 ResourceMark rm;
214 outputStream* out;
215 if (detailed_info) {
216 out = log.trace_stream();
217 } else {
218 out = log.debug_stream();
219 }
220
221 out->print("%s: %u ", _name, _count);
222
223 if (_alloc_region == NULL) {
224 out->print("NULL");
225 } else if (_alloc_region == _dummy_region) {
226 out->print("DUMMY");
227 } else {
228 out->print(HR_FORMAT, HR_FORMAT_PARAMS(_alloc_region));
229 }
230
231 out->print(" : %s", str);
232
233 if (detailed_info) {
234 if (result != NULL) {
235 out->print(" min " SIZE_FORMAT " desired " SIZE_FORMAT " actual " SIZE_FORMAT " " PTR_FORMAT,
236 min_word_size, desired_word_size, actual_word_size, p2i(result));
237 } else if (min_word_size != 0) {
238 out->print(" min " SIZE_FORMAT " desired " SIZE_FORMAT, min_word_size, desired_word_size);
239 }
|
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 #include "precompiled.hpp"
26 #include "gc/g1/g1AllocRegion.inline.hpp"
27 #include "gc/g1/g1EvacStats.inline.hpp"
28 #include "gc/g1/g1CollectedHeap.inline.hpp"
29 #include "logging/log.hpp"
30 #include "logging/logStream.hpp"
31 #include "memory/resourceArea.hpp"
32 #include "runtime/orderAccess.inline.hpp"
33
34 G1CollectedHeap* G1AllocRegion::_g1h = NULL;
35 HeapRegion* G1AllocRegion::_dummy_region = NULL;
36
37 void G1AllocRegion::setup(G1CollectedHeap* g1h, HeapRegion* dummy_region) {
38 assert(_dummy_region == NULL, "should be set once");
39 assert(dummy_region != NULL, "pre-condition");
40 assert(dummy_region->free() == 0, "pre-condition");
41
42 // Make sure that any allocation attempt on this region will fail
43 // and will not trigger any asserts.
44 assert(allocate(dummy_region, 1, false) == NULL, "should fail");
45 assert(par_allocate(dummy_region, 1, false) == NULL, "should fail");
46 assert(allocate(dummy_region, 1, true) == NULL, "should fail");
47 assert(par_allocate(dummy_region, 1, true) == NULL, "should fail");
48
49 _g1h = g1h;
50 _dummy_region = dummy_region;
196 trace("released");
197 return (alloc_region == _dummy_region) ? NULL : alloc_region;
198 }
199
200 #ifndef PRODUCT
201 void G1AllocRegion::trace(const char* str, size_t min_word_size, size_t desired_word_size, size_t actual_word_size, HeapWord* result) {
202 // All the calls to trace that set either just the size or the size
203 // and the result are considered part of detailed tracing and are
204 // skipped during other tracing.
205
206 Log(gc, alloc, region) log;
207
208 if (!log.is_debug()) {
209 return;
210 }
211
212 bool detailed_info = log.is_trace();
213
214 if ((actual_word_size == 0 && result == NULL) || detailed_info) {
215 ResourceMark rm;
216 LogStream ls_trace(log.trace());
217 LogStream ls_debug(log.debug());
218 outputStream* out = detailed_info ? &ls_trace : &ls_debug;
219
220 out->print("%s: %u ", _name, _count);
221
222 if (_alloc_region == NULL) {
223 out->print("NULL");
224 } else if (_alloc_region == _dummy_region) {
225 out->print("DUMMY");
226 } else {
227 out->print(HR_FORMAT, HR_FORMAT_PARAMS(_alloc_region));
228 }
229
230 out->print(" : %s", str);
231
232 if (detailed_info) {
233 if (result != NULL) {
234 out->print(" min " SIZE_FORMAT " desired " SIZE_FORMAT " actual " SIZE_FORMAT " " PTR_FORMAT,
235 min_word_size, desired_word_size, actual_word_size, p2i(result));
236 } else if (min_word_size != 0) {
237 out->print(" min " SIZE_FORMAT " desired " SIZE_FORMAT, min_word_size, desired_word_size);
238 }
|