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8237649: ZGC: Improved NUMA support when using small pages

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Reviewed-by: eosterlund, smonteith
This commit is contained in:
Per Lidén 2020-01-30 12:41:26 +01:00
parent 06456a9773
commit 91d58b8f96
6 changed files with 66 additions and 5 deletions
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13
src/hotspot/os/linux/os_linux.hpp
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@ -219,7 +219,7 @@ class Linux {
typedef struct bitmask* (*numa_get_membind_func_t)(void);
typedef struct bitmask* (*numa_get_interleave_mask_func_t)(void);
typedef long (*numa_move_pages_func_t)(int pid, unsigned long count, void **pages, const int *nodes, int *status, int flags);
typedef void (*numa_set_preferred_func_t)(int node);
typedef void (*numa_set_bind_policy_func_t)(int policy);
typedef int (*numa_bitmask_isbitset_func_t)(struct bitmask *bmp, unsigned int n);
typedef int (*numa_distance_func_t)(int node1, int node2);
@ -238,6 +238,7 @@ class Linux {
static numa_get_membind_func_t _numa_get_membind;
static numa_get_interleave_mask_func_t _numa_get_interleave_mask;
static numa_move_pages_func_t _numa_move_pages;
static numa_set_preferred_func_t _numa_set_preferred;
static unsigned long* _numa_all_nodes;
static struct bitmask* _numa_all_nodes_ptr;
static struct bitmask* _numa_nodes_ptr;
@ -258,6 +259,7 @@ class Linux {
static void set_numa_get_membind(numa_get_membind_func_t func) { _numa_get_membind = func; }
static void set_numa_get_interleave_mask(numa_get_interleave_mask_func_t func) { _numa_get_interleave_mask = func; }
static void set_numa_move_pages(numa_move_pages_func_t func) { _numa_move_pages = func; }
static void set_numa_set_preferred(numa_set_preferred_func_t func) { _numa_set_preferred = func; }
static void set_numa_all_nodes(unsigned long* ptr) { _numa_all_nodes = ptr; }
static void set_numa_all_nodes_ptr(struct bitmask **ptr) { _numa_all_nodes_ptr = (ptr == NULL ? NULL : *ptr); }
static void set_numa_nodes_ptr(struct bitmask **ptr) { _numa_nodes_ptr = (ptr == NULL ? NULL : *ptr); }
@ -315,6 +317,11 @@ class Linux {
_numa_interleave_memory(start, size, _numa_all_nodes);
}
}
static void numa_set_preferred(int node) {
if (_numa_set_preferred != NULL) {
_numa_set_preferred(node);
}
}
static void numa_set_bind_policy(int policy) {
if (_numa_set_bind_policy != NULL) {
_numa_set_bind_policy(policy);
@ -392,6 +399,10 @@ class Linux {
return false;
}
}
static const GrowableArray<int>* numa_nindex_to_node() {
return _nindex_to_node;
}
};
#endif // OS_LINUX_OS_LINUX_HPP