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Article Number: 000132429

Troubleshooting a memory leak or other performance problem

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Article Content

Symptoms

Collect a Poolmon log file

In order to find a memory leak, or other performance problem, you need to be able to gather data to be analyzed.
There are tools available to help gather and analyze the raw data.
Below you will find an example of one of those tools.
Please Note: This is not the only way to analyze a memory leak or performance issue, but serves as an example on how to get basic information you need to determine if you have a software application leak.

Poolmon is one such tool that can be used to gather and review the performance data.

Use this link to download Poolmon on the server:
PoolMon3VBSPerf.ZIP
If this link isnt working, Obtain the file from a MS SST Analyst


Instructions to use the PoolMon3VBSPerf.zip:

  1. Extract the PoolMon3VBSPerf.ZIP to C:\POOLMON3

  2.  Double click  _LogPool-as-a-service.CMD with elevated rights to have poolmon run as a service. 

  •  If you do not want to run the poolmon data collection as a service, you can run LogPool.CMD; however, it will stop collecting data if you restart, log out, or close the window.

When the issue reoccurs,  Use  the contents of  the "C:\POOLMON3\Poolmon-Output" folder  for troubleshooting in section 2. 

Resolution

Analyze the Results:

Two tools may be used to review the output.
The Performance analysis tool can be used to review .BLG files.
The "Performance analysis of logs" tool can be used to determine if you have a memory leak.

Download the PAL from Microsoft using this link:
Performance Analysis of Logs (PAL) Tool

Another tool to use with the pool.txt or pool files is the Pool log analyzer tool. This is a  is freeware download. You have to search the internet for a copy.
Note: Please use the product only if you are comfortable with the source.
The search to find the tool is "pool log analyzer tool". The file to analyze from the data collection set of PoolMon3VBSPerf is called small.txt.

Both of these tools automate the analysis and will give you a determination of the problems you are seeing.  Some of the results may require a web search to verify specific counter results are out of the normal range. However, you can usually  get a good idea about the cause of a performance issue by simply reviewing the graphs. From this analysis, it is possible to decide what needs to be changed to make some improvements to the system.  

Both tools require you to load the file into the tool and then wait for the graphical results. 

 

 

Article Properties

Affected Product

Servers

Last Published Date

21 Feb 2021

Version

3

Article Type

Solution

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