High CPU Usage , users affected Post: 302886635

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Operating Systems AIX High CPU Usage , users affected Post 302886635 by Thala on Monday 3rd of February 2014 02:25:30 AM

02-03-2014

Registered User

High CPU Usage , users affected

Dear All,

One production Server is affected by high usage.
Application is slow now. Please guide me how to solve it?
NMON Report shows full cpu usage.

Here im posting some server details.

Code:

bash-3.2# lparstat -i
Node Name                                  : *********
Partition Name                             : OBIEE App Server 1
Partition Number                           : 7
Type                                       : Shared-SMT-4
Mode                                       : Capped
Entitled Capacity                          : 1.30
Partition Group-ID                         : 32775
Shared Pool ID                             : 0
Online Virtual CPUs                        : 2
Maximum Virtual CPUs                       : 3
Minimum Virtual CPUs                       : 1
Online Memory                              : 21504 MB
Maximum Memory                             : 30720 MB
Minimum Memory                             : 10240 MB
Variable Capacity Weight                   : 0
Minimum Capacity                           : 1.00
Maximum Capacity                           : 3.00
Capacity Increment                         : 0.01
Maximum Physical CPUs in system            : 16
Active Physical CPUs in system             : 16
Active CPUs in Pool                        : 16
Shared Physical CPUs in system             : 16
Maximum Capacity of Pool                   : 1600
Entitled Capacity of Pool                  : 1460
Unallocated Capacity                       : 0.00
Physical CPU Percentage                    : 65.00%
Unallocated Weight                         : 0
Memory Mode                                : Dedicated
Total I/O Memory Entitlement               : -
Variable Memory Capacity Weight            : -
Memory Pool ID                             : -
Physical Memory in the Pool                : -
Hypervisor Page Size                       : -
Unallocated Variable Memory Capacity Weight: -
Unallocated I/O Memory entitlement         : -
Memory Group ID of LPAR                    : -
Desired Virtual CPUs                       : 2
Desired Memory                             : 21504 MB
Desired Variable Capacity Weight           : 0
Desired Capacity                           : 1.30
Target Memory Expansion Factor             : -
Target Memory Expansion Size               : -
Power Saving Mode                          : Disabled

Please help me out.

Can i DLPAR temporally ? Is there any temporary fix?

Thanks,
Sharath

Last edited by Franklin52; 02-03-2014 at 03:52 AM.. Reason: Replace icode tags with code tags

Thala

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LEARN ABOUT NETBSD

cpuset_clr

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