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pset_info(2)
pset_info(2) System Calls pset_info(2)
NAME
pset_info - get information about a processor set
SYNOPSIS
#include <sys/pset.h>
int pset_info(psetid_t pset, int *type, uint_t *numcpus,
processorid_t *cpulist);
DESCRIPTION
The pset_info() function returns information on the processor set pset.
If type is non-null, then on successful completion the type of the
processor set will be stored in the location pointed to by type. The
only type supported for active processor sets is PS_PRIVATE.
If numcpus is non-null, then on successful completion the number of
processors in the processor set will be stored in the location pointed
to by numcpus.
If numcpus and cpulist are both non-null, then cpulist points to a
buffer where a list of processors assigned to the processor set is to
be stored, and numcpus points to the maximum number of processor IDs
the buffer can hold. On successful completion, the list of processors
up to the maximum buffer size is stored in the buffer pointed to by
cpulist.
If pset is PS_NONE, the list of processors not assigned to any proces‐
sor set will be stored in the buffer pointed to by cpulist, and the
number of such processors will be stored in the location pointed to by
numcpus. The location pointed to by type will be set to PS_NONE.
If pset is PS_MYID, the processor list and number of processors re‐
turned will be those of the processor set to which the caller is bound.
If the caller is not bound to a processor set, the result will be
equivalent to setting pset to PS_NONE.
RETURN VALUES
Upon successful completion, 0 is returned. Otherwise, −1 is returned
and errno is set to indicate the error.
ERRORS
The pset_info() function will fail if:
EFAULT The location pointed to by type, numcpus, or cpulist was not
null and not writable by the user.
EINVAL An invalid processor set ID was specified.
The caller is in a non-global zone, the pools facility is ac‐
tive, and the processor is not a member of the zone's pool's
processor set.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
TRIBUTE VALUE _ Interface StabilityCommitted _ MT-LevelAsync-Signal-
Safe
SEE ALSO
processor_info(2), pset_assign(2), pset_bind(2), pset_create(2),
pset_destroy(2), pset_getloadavg(3C), attributes(7), pooladm(8),
psrinfo(8), psrset(8), zoneadm(8)
NOTES
The processor set of type PS_SYSTEM is no longer supported.
Oracle Solaris 11.4 28 Jun 2004 pset_info(2)