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Introduction to Windows Server 2003's Performance Monitor
Performance Monitor (perfmon) is a powerful program found in all Microsoft
servers from NT to Windows Server 2003. I think of Performance Monitor as more of
a toolbox than a single gadget. I will let you into a secret, few people
REALLY know Performance Monitor, so make a name for yourself and master this box
of tricks.
The initial learning steps are steep. To begin with, you can be
overwhelmed by the variety options. I have created a whole section
dedicated to performance monitoring (left menu). Half the pages are aimed
for the beginner, with the emphasis on learning how to use Performance Monitor;
while the other half is designed to show you how to use the counters to detect
bottlenecks.
The main reasons for Performance Monitoring
- Detecting network bottlenecks.
- Identifying server performance problems.
- Planning the capacity of your servers and subnets.
- Setting alerts so that you can nip trouble in the bud.
- Creating baselines when activity is low.
- Understanding the effect of your workload on resources.
Benefits of Performance Monitoring
- Make the best use of resources. (Load balancing)
- Know where the minimum investment will produce the maximum gains.
(RAM on response times)
- Understanding what components are actually doing. (Is the Disk
mainly reading or writing?)
- Knowledge is power. Set an alert when resources are running low.
(Memory: Available bytes less than 10 MB)
Developing your Performance Monitoring skills
There are three parts to learning your performance monitor craft.
1) The art of choosing the best objects and counters
The first skill is in choosing the right objects and the best counters to
monitor. To make sure you do not miss a vital clue be methodical and
always check the 'big four' resource objects, memory, processor, disk and
network.
I will give tips on how to choose your own counters for your particular
circumstances.
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