numaif.h - master - githubmirror/numactl

numaif.h
58 строк2 KB
Gregory Price
Add `-w` and `--weighted-interleave` for weighted interleave mode
19 апр 2024, 00:28
19 апр 2024, 00:28b67fb88
#ifndef NUMAIF_H
#define NUMAIF_H 1

#ifdef __cplusplus
extern "C" {
#endif

/* Kernel interface for NUMA API */

/* System calls */
extern long get_mempolicy(int *mode, unsigned long *nmask,
			unsigned long maxnode, void *addr, unsigned flags);
extern long mbind(void *start, unsigned long len, int mode,
	const unsigned long *nmask, unsigned long maxnode, unsigned flags);
extern long set_mempolicy(int mode, const unsigned long *nmask,
			  unsigned long maxnode);
extern long migrate_pages(int pid, unsigned long maxnode,
			  const unsigned long *frommask,
			  const unsigned long *tomask);

extern long move_pages(int pid, unsigned long count,
		void **pages, const int *nodes, int *status, int flags);

extern int set_mempolicy_home_node(void *start, unsigned long len,
		int home_node, int flag);

/* Policies */
#define MPOL_DEFAULT     0
#define MPOL_PREFERRED   1
#define MPOL_BIND        2
#define MPOL_INTERLEAVE  3
#define MPOL_LOCAL       4
#define MPOL_PREFERRED_MANY   5
#define MPOL_WEIGHTED_INTERLEAVE   6
#define MPOL_MAX         7

/* Flags for set_mempolicy, specified in mode */
#define MPOL_F_NUMA_BALANCING	(1 << 13) /* Optimize with NUMA balancing if possible */
#define MPOL_F_RELATIVE_NODES (1 << 14)
#define MPOL_F_STATIC_NODES (1 << 15)
	
/* Flags for get_mem_policy */
#define MPOL_F_NODE    (1<<0)   /* return next il node or node of address */
				/* Warning: MPOL_F_NODE is unsupported and
				   subject to change. Don't use. */
#define MPOL_F_ADDR     (1<<1)  /* look up vma using address */
#define MPOL_F_MEMS_ALLOWED (1<<2) /* query nodes allowed in cpuset */

/* Flags for mbind */
#define MPOL_MF_STRICT  (1<<0)  /* Verify existing pages in the mapping */
#define MPOL_MF_MOVE	(1<<1)  /* Move pages owned by this process to conform to mapping */
#define MPOL_MF_MOVE_ALL (1<<2) /* Move every page to conform to mapping */

#ifdef __cplusplus
}
#endif

#endif