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Foglight 5.9.3 - Performance Tuning Field Guide

Overview Hardware and Operating System Tuning Management Server Tuning Java Virtual Machine Tuning Backend Database Tuning High Availability (HA) Tuning Agent Tuning Appendix: Performance Health Check Appendix: Analyzing a Support Bundle

Overview

Performance is a measure of the efficiency of an application running in an environment or of the overall efficiency of multiple applications running in the same environment.

You tune performance in order to optimize it.

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Characteristics of Poor Performance in Foglight
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Parameters that Affect Foglight Performance
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Critical Areas that Can Affect Foglight Performance
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Identifying Performance Problems

Characteristics of Poor Performance in Foglight

The following items characterize poor performance in the Foglight® environment:

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poor performing (slow) browser interface
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missing data
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high CPU load for the Foglight Management Server process
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high CPU load for the database backend process
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excessive memory utilization (or out of memory)
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long-running SQL statements

Parameters that Affect Foglight Performance

Foglight® is a complicated system, and its runtime performance depends on many variables within the environment.

The following parameters have an effect on Foglight performance:

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the processing power of the host running the Management Server
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the memory of the host running the Management Server
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the memory allocated for the Management Server process (heap)
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the database backend type (MySQLTM/Oracle®)
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the processing power of the host running the database backend
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the memory of the host running the database backend
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the database setup
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the number of Foglight Agent Managers

Foglight’s runtime performance also depends on what it is monitoring.

Critical Areas that Can Affect Foglight Performance

It can be difficult to determine that Foglight® performance is suffering and then identify the appropriate steps to take. This guide provides information about the various things that can have an effect on overall performance and describes the applicable performance-related options.

The areas that can have an effect on overall performance are:

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Hardware and Operating System Tuning
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Management Server Tuning
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Java Virtual Machine Tuning
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Backend Database Tuning
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High Availability (HA) Tuning
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Agent Tuning
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