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IBM Tivoli Monitoring CPU calculation options and considerations for Linux on System z



Document Author:

Michael Sine


Document ID:

FLASH10817


Doc. Organization:

Advanced Technical Sales


Document Revised:

06/21/2013


Product(s) covered:

Tivoli Monitoring; Tivoli Monitoring for Virtual Servers; Tivoli OMEGAMON XE for z/VM and Linux







Abstract: Many CPU attributes are collected by ITM. The typical attribute collection is point-in-time. Newer interval based collection attributes are becoming a popular requirement from customers. The Process Instant Busy CPU (Percent) attribute's collection is interval based. It is producing an average over a sampling interval. For customers running the Linux OS agent on dedicated hardware, the additional overhead necessary to take multiple samples within a collection interval is typically negligible. For customers running the Linux OS agent in a virtualized environment, the additional samples collected within the interval could prove problematic in larger virtual environments.

ITM CPU Changes_June2013.pdfITM CPU Changes_June2013.pdf



Classification:

Software

Category:

Performance




Platform(s):

IBM System z Family

S/W Pillar(s):

IBM System z Software; Tivoli

O/S:

Linux; VM

Keywords:

Process Instant Busy CPU (Percent), KLZ_PROCESS_SAMPLE_SECS, IBM Tivoli Monitoring, Linux OS agent, lz agent, OMEGAMON XE on z/VM and Linux

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