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 #ifndef SHARE_SERVICES_VIRTUALMEMORYTRACKER_HPP
26 #define SHARE_SERVICES_VIRTUALMEMORYTRACKER_HPP
27
28 #if INCLUDE_NMT
29
30 #include "memory/allocation.hpp"
31 #include "memory/metaspace.hpp"
32 #include "services/allocationSite.hpp"
33 #include "services/nmtCommon.hpp"
34 #include "utilities/linkedlist.hpp"
35 #include "utilities/nativeCallStack.hpp"
36 #include "utilities/ostream.hpp"
37
38
39 /*
40 * Virtual memory counter
41 */
42 class VirtualMemory {
43 private:
44 size_t _reserved;
45 size_t _committed;
46
47 public:
48 VirtualMemory() : _reserved(0), _committed(0) { }
49
50 inline void reserve_memory(size_t sz) { _reserved += sz; }
51 inline void commit_memory (size_t sz) {
403 static bool add_committed_region (address base_addr, size_t size, const NativeCallStack& stack);
404 static bool remove_uncommitted_region (address base_addr, size_t size);
405 static bool remove_released_region (address base_addr, size_t size);
406 static void set_reserved_region_type (address addr, MEMFLAGS flag);
407
408 // Walk virtual memory data structure for creating baseline, etc.
409 static bool walk_virtual_memory(VirtualMemoryWalker* walker);
410
411 static bool transition(NMT_TrackingLevel from, NMT_TrackingLevel to);
412
413 // Snapshot current thread stacks
414 static void snapshot_thread_stacks();
415
416 private:
417 static SortedLinkedList<ReservedMemoryRegion, compare_reserved_region_base>* _reserved_regions;
418 };
419
420
421 class MetaspaceSnapshot : public ResourceObj {
422 private:
423 size_t _reserved_in_bytes[Metaspace::MetadataTypeCount];
424 size_t _committed_in_bytes[Metaspace::MetadataTypeCount];
425 size_t _used_in_bytes[Metaspace::MetadataTypeCount];
426 size_t _free_in_bytes[Metaspace::MetadataTypeCount];
427
428 public:
429 MetaspaceSnapshot();
430 size_t reserved_in_bytes(Metaspace::MetadataType type) const { assert_valid_metadata_type(type); return _reserved_in_bytes[type]; }
431 size_t committed_in_bytes(Metaspace::MetadataType type) const { assert_valid_metadata_type(type); return _committed_in_bytes[type]; }
432 size_t used_in_bytes(Metaspace::MetadataType type) const { assert_valid_metadata_type(type); return _used_in_bytes[type]; }
433 size_t free_in_bytes(Metaspace::MetadataType type) const { assert_valid_metadata_type(type); return _free_in_bytes[type]; }
434
435 static void snapshot(MetaspaceSnapshot& s);
436
437 private:
438 static void snapshot(Metaspace::MetadataType type, MetaspaceSnapshot& s);
439
440 static void assert_valid_metadata_type(Metaspace::MetadataType type) {
441 assert(type == Metaspace::ClassType || type == Metaspace::NonClassType,
442 "Invalid metadata type");
443 }
444 };
445
446 #endif // INCLUDE_NMT
447
448 #endif // SHARE_SERVICES_VIRTUALMEMORYTRACKER_HPP
|
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 #ifndef SHARE_SERVICES_VIRTUALMEMORYTRACKER_HPP
26 #define SHARE_SERVICES_VIRTUALMEMORYTRACKER_HPP
27
28 #if INCLUDE_NMT
29
30 #include "memory/allocation.hpp"
31 #include "memory/metaspace/metaspaceEnums.hpp"
32 #include "services/allocationSite.hpp"
33 #include "services/nmtCommon.hpp"
34 #include "utilities/linkedlist.hpp"
35 #include "utilities/nativeCallStack.hpp"
36 #include "utilities/ostream.hpp"
37
38
39 /*
40 * Virtual memory counter
41 */
42 class VirtualMemory {
43 private:
44 size_t _reserved;
45 size_t _committed;
46
47 public:
48 VirtualMemory() : _reserved(0), _committed(0) { }
49
50 inline void reserve_memory(size_t sz) { _reserved += sz; }
51 inline void commit_memory (size_t sz) {
403 static bool add_committed_region (address base_addr, size_t size, const NativeCallStack& stack);
404 static bool remove_uncommitted_region (address base_addr, size_t size);
405 static bool remove_released_region (address base_addr, size_t size);
406 static void set_reserved_region_type (address addr, MEMFLAGS flag);
407
408 // Walk virtual memory data structure for creating baseline, etc.
409 static bool walk_virtual_memory(VirtualMemoryWalker* walker);
410
411 static bool transition(NMT_TrackingLevel from, NMT_TrackingLevel to);
412
413 // Snapshot current thread stacks
414 static void snapshot_thread_stacks();
415
416 private:
417 static SortedLinkedList<ReservedMemoryRegion, compare_reserved_region_base>* _reserved_regions;
418 };
419
420
421 class MetaspaceSnapshot : public ResourceObj {
422 private:
423 size_t _reserved_in_bytes[metaspace::MetadataTypeCount];
424 size_t _committed_in_bytes[metaspace::MetadataTypeCount];
425 size_t _used_in_bytes[metaspace::MetadataTypeCount];
426 size_t _free_in_bytes[metaspace::MetadataTypeCount];
427
428 public:
429 MetaspaceSnapshot();
430 size_t reserved_in_bytes(metaspace::MetadataType type) const { assert_valid_metadata_type(type); return _reserved_in_bytes[type]; }
431 size_t committed_in_bytes(metaspace::MetadataType type) const { assert_valid_metadata_type(type); return _committed_in_bytes[type]; }
432 size_t used_in_bytes(metaspace::MetadataType type) const { assert_valid_metadata_type(type); return _used_in_bytes[type]; }
433 size_t free_in_bytes(metaspace::MetadataType type) const { assert_valid_metadata_type(type); return _free_in_bytes[type]; }
434
435 static void snapshot(MetaspaceSnapshot& s);
436
437 private:
438 static void snapshot(metaspace::MetadataType type, MetaspaceSnapshot& s);
439
440 static void assert_valid_metadata_type(metaspace::MetadataType type) {
441 assert(type == metaspace::ClassType || type == metaspace::NonClassType,
442 "Invalid metadata type");
443 }
444 };
445
446 #endif // INCLUDE_NMT
447
448 #endif // SHARE_SERVICES_VIRTUALMEMORYTRACKER_HPP
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