GNU/Linux man pages
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GNU/Linux |
CentOS 5.1 |
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get_mempolicy(2) |
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get_mempolicy − get the current process’ or memory address’ NUMA policy
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int sys_get_mempolicy (int *policy, unsigned long *nmask, unsigned long maxnode, unsigned long addr, unsigned long flags); |
get_mempolicy retrieves the NUMA policy of the current process or a memory address specified by addr. The memory policy defines which node memory is allocated to for the process. The policy is stored in policy when non-zero, with an associated nmask. maxnode is the maximum bit number plus one that can be stored into nmask. The bit number is rounded to a multiple of unsigned long. The only valid value other than zero for flags is MPOL_F_ILNODE. This value is only valid when the policy being retrieved is MPOL_INTERLEAVE. When this flag is specified, an unsigned long with the next node that would be used for interleaving is returned in nodemask.
get_mempolicy returns 0 on success; otherwise, it returns one of the errors listed in the "Errors" section.
-EINVAL
An illegal parameter was passed in.
-EFAULT
Invalid memory area accessed.
mbind(2),
set_mempolicy(2) numa(3) numactl(8)
Note: the numa(3) and numactl(8) man pages are not include
in the
man-pages package. They are available via the
numactl-x.x.tar.gz
package.
Niki Rahimi.
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get_mempolicy(2) | |