06-23-2014
Quote:
Originally Posted by
Thala
Ur right! but here all the LPARS are capped then from where did i got the 3CPU extra used for Node5?
First off, i 'd like to ask you to kindly refrain from using leet-speak around here. I am sure it will enhance your chances of getting an answer if you undergo the effort to write "you are" ("you're") instead of "ur". After all, we are professionals here and we talk that way. Thank you for your consideration.
Yes, your LPARs are capped, but that does not mean they can't give back to the pool the resources they do not need at the moment. "Capped" only means that they cannot allocate needed resources above a certain point (the "maximum" value). So, if your other LPARs are more or less idle and your LPAR Nr. 5 is very busy it could allocate additional processors released to the pool from the other LPARs. If they would start to need their resources themselves of course the LPAR 5 owuld have to give them back.
I hope this helps.
bakunin
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LEARN ABOUT NETBSD
cpuset
CPUSET(3) BSD Library Functions Manual CPUSET(3)
NAME
cpuset_create, cpuset_destroy, cpuset_zero, cpuset_set, cpuset_clr, cpuset_isset, cpuset_size -- dynamic CPU sets
SYNOPSIS
#include <sched.h>
cpuset_t *
cpuset_create(void);
void
cpuset_destroy(cpuset_t *set);
void
cpuset_zero(cpuset_t *set);
int
cpuset_set(cpuid_t cpu, cpuset_t *set);
int
cpuset_clr(cpuid_t cpu, cpuset_t *set);
int
cpuset_isset(cpuid_t cpu, const cpuset_t *set);
size_t
cpuset_size(const cpuset_t *set);
DESCRIPTION
This section describes the functions used to create, set, use and destroy the dynamic CPU sets.
This API can be used with the POSIX threads, see pthread(3) and affinity(3).
The ID of the primary CPU in the system is 0.
FUNCTIONS
cpuset_create()
Allocates and initializes a clean CPU-set. Returns the pointer to the CPU-set, or NULL on failure.
cpuset_destroy(set)
Destroy the CPU-set specified by set.
cpuset_zero(set)
Makes the CPU-set specified by set clean, that is, memory is initialized to zero bytes, and none of the CPUs set.
cpuset_set(cpu, set)
Sets the CPU specified by cpu in set. Returns zero on success, and -1 if cpu is invalid.
cpuset_clr(cpu, set)
Clears the CPU specified by cpu in the CPU-set set. Returns zero on success, and -1 if cpu is invalid.
cpuset_isset(cpu, set)
Checks if CPU specified by cpu is set in the CPU-set set. Returns the positive number if set, zero if not set, and -1 if cpu is
invalid.
cpuset_size(set)
Returns the size in bytes of CPU-set specified by set.
SEE ALSO
affinity(3), pset(3), sched(3), schedctl(8), kcpuset(9)
HISTORY
The dynamic CPU sets appeared in NetBSD 5.0.
BSD
November 2, 2011 BSD