Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/memory/compactingPermGenGen.cpp
src/share/vm/memory/compactingPermGenGen.cpp
- changeset 1486
- 26f1542097f1
- parent 726
- 5251a9cd8eb8
- child 1907
- c18cbe5936b8
equal
deleted
inserted
replaced
| 1483:29adffcb6a61 | 1486:26f1542097f1 |
|---|---|
| 350 } | 350 } |
| 351 #endif | 351 #endif |
| 352 } | 352 } |
| 353 | 353 |
| 354 | 354 |
| 355 // Do not use in time-critical operations due to the possibility of paging | |
| 356 // in otherwise untouched or previously unread portions of the perm gen, | |
| 357 // for instance, the shared spaces. NOTE: Because CompactingPermGenGen | |
| 358 // derives from OneContigSpaceCardGeneration which is supposed to have a | |
| 359 // single space, and does not override its object_iterate() method, | |
| 360 // object iteration via that interface does not look at the objects in | |
| 361 // the shared spaces when using CDS. This should be fixed; see CR 6897798. | |
| 355 void CompactingPermGenGen::space_iterate(SpaceClosure* blk, bool usedOnly) { | 362 void CompactingPermGenGen::space_iterate(SpaceClosure* blk, bool usedOnly) { |
| 356 OneContigSpaceCardGeneration::space_iterate(blk, usedOnly); | 363 OneContigSpaceCardGeneration::space_iterate(blk, usedOnly); |
| 357 if (spec()->enable_shared_spaces()) { | 364 if (spec()->enable_shared_spaces()) { |
| 358 #ifdef PRODUCT | |
| 359 // Making the rw_space walkable will page in the entire space, and | 365 // Making the rw_space walkable will page in the entire space, and |
| 360 // is to be avoided. However, this is required for Verify options. | 366 // is to be avoided in the case of time-critical operations. |
| 361 ShouldNotReachHere(); | 367 // However, this is required for Verify and heap dump operations. |
| 362 #endif | |
| 363 | |
| 364 blk->do_space(ro_space()); | 368 blk->do_space(ro_space()); |
| 365 blk->do_space(rw_space()); | 369 blk->do_space(rw_space()); |
| 366 } | 370 } |
| 367 } | 371 } |
| 368 | 372 |
