Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/os/linux/vm/os_linux.hpp
src/os/linux/vm/os_linux.hpp
- changeset 9303
- c2ee42fa54cd
- parent 9289
- 427b2fb1944f
- child 9348
- cb9634ab2906
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| 9302:3e565a695187 | 9303:c2ee42fa54cd |
|---|---|
| 282 static void set_numa_interleave_memory_v2(numa_interleave_memory_v2_func_t func) { _numa_interleave_memory_v2 = func; } | 282 static void set_numa_interleave_memory_v2(numa_interleave_memory_v2_func_t func) { _numa_interleave_memory_v2 = func; } |
| 283 static void set_numa_set_bind_policy(numa_set_bind_policy_func_t func) { _numa_set_bind_policy = func; } | 283 static void set_numa_set_bind_policy(numa_set_bind_policy_func_t func) { _numa_set_bind_policy = func; } |
| 284 static void set_numa_bitmask_isbitset(numa_bitmask_isbitset_func_t func) { _numa_bitmask_isbitset = func; } | 284 static void set_numa_bitmask_isbitset(numa_bitmask_isbitset_func_t func) { _numa_bitmask_isbitset = func; } |
| 285 static void set_numa_distance(numa_distance_func_t func) { _numa_distance = func; } | 285 static void set_numa_distance(numa_distance_func_t func) { _numa_distance = func; } |
| 286 static void set_numa_all_nodes(unsigned long* ptr) { _numa_all_nodes = ptr; } | 286 static void set_numa_all_nodes(unsigned long* ptr) { _numa_all_nodes = ptr; } |
| 287 static void set_numa_all_nodes_ptr(struct bitmask **ptr) { _numa_all_nodes_ptr = *ptr; } | 287 static void set_numa_all_nodes_ptr(struct bitmask **ptr) { _numa_all_nodes_ptr = (ptr == NULL ? NULL : *ptr); } |
| 288 static void set_numa_nodes_ptr(struct bitmask **ptr) { _numa_nodes_ptr = *ptr; } | 288 static void set_numa_nodes_ptr(struct bitmask **ptr) { _numa_nodes_ptr = (ptr == NULL ? NULL : *ptr); } |
| 289 static int sched_getcpu_syscall(void); | 289 static int sched_getcpu_syscall(void); |
| 290 public: | 290 public: |
| 291 static int sched_getcpu() { return _sched_getcpu != NULL ? _sched_getcpu() : -1; } | 291 static int sched_getcpu() { return _sched_getcpu != NULL ? _sched_getcpu() : -1; } |
| 292 static int numa_node_to_cpus(int node, unsigned long *buffer, int bufferlen) { | 292 static int numa_node_to_cpus(int node, unsigned long *buffer, int bufferlen) { |
| 293 return _numa_node_to_cpus != NULL ? _numa_node_to_cpus(node, buffer, bufferlen) : -1; | 293 return _numa_node_to_cpus != NULL ? _numa_node_to_cpus(node, buffer, bufferlen) : -1; |
| 327 } | 327 } |
| 328 // Check if numa node exists in the system (including zero memory nodes). | 328 // Check if numa node exists in the system (including zero memory nodes). |
| 329 static bool isnode_in_existing_nodes(unsigned int n) { | 329 static bool isnode_in_existing_nodes(unsigned int n) { |
| 330 if (_numa_bitmask_isbitset != NULL && _numa_nodes_ptr != NULL) { | 330 if (_numa_bitmask_isbitset != NULL && _numa_nodes_ptr != NULL) { |
| 331 return _numa_bitmask_isbitset(_numa_nodes_ptr, n); | 331 return _numa_bitmask_isbitset(_numa_nodes_ptr, n); |
| 332 } else if (_numa_bitmask_isbitset != NULL && _numa_all_nodes_ptr != NULL) { | |
| 333 // Not all libnuma API v2 implement numa_nodes_ptr, so it's not possible | |
| 334 // to trust the API version for checking its absence. On the other hand, | |
| 335 // numa_nodes_ptr found in libnuma 2.0.9 and above is the only way to get | |
| 336 // a complete view of all numa nodes in the system, hence numa_nodes_ptr | |
| 337 // is used to handle CPU and nodes on architectures (like PowerPC) where | |
| 338 // there can exist nodes with CPUs but no memory or vice-versa and the | |
| 339 // nodes may be non-contiguous. For most of the architectures, like | |
| 340 // x86_64, numa_node_ptr presents the same node set as found in | |
| 341 // numa_all_nodes_ptr so it's possible to use numa_all_nodes_ptr as a | |
| 342 // substitute. | |
| 343 return _numa_bitmask_isbitset(_numa_all_nodes_ptr, n); | |
| 332 } else | 344 } else |
| 333 return 0; | 345 return 0; |
| 334 } | 346 } |
| 335 }; | 347 }; |
| 336 | 348 |
