Monitor for memory bottleneck on Windows?

[Tore Lønøy]

This is true for some cases but we have a few servers which are using 75%
swap (8GB RAM, 8GB Swap), which are blazing fast even then. So I don´t think
swap usage _alone_ is a good indicator, but it can be.

2009/7/6 Andreas Ericsson <ae at op5.se>

> Tore Lønøy wrote:
>
>> Hello naguis usergroup!
>>
>> I have for some time now tried to find a way to monitor performance
>> bottlenecks related to shortage of memory on Windows, with no luck. As far
>> my knowlegde of memory bottlenecks concern, using NSClient++ command
>> CheckMem and argument physical, is far from enough. Also, monitoring
>> windows
>> performance counters, like Memory \ Pages Out/sec is no good either since
>> it
>> doesn't support average results.
>>
>> There is alot of documentation on how to determine that memory is a
>> bottleneck, like e.g.: http://support.microsoft.com/kb/555223
>>
>> But, for what I understand, using nagios to determine this is hard.
>>
>> So how do you guys locate memory bottlenecks on windows machines, with or
>> without the help of nagios?
>>
>>
> By checking the swap usage. Basically, when a system starts swapping
> performance will go downhill very, very fast. The disk is several hundred
> orders of magnitude slower than the RAM. If you have high swap usage, you
> should buy more RAM for your servers (or modify whatever programs are
> running on them).
>
> --
> Andreas Ericsson                   andreas.ericsson at op5.se
> OP5 AB                             www.op5.se
> Tel: +46 8-230225                  Fax: +46 8-230231
>
> Considering the successes of the wars on alcohol, poverty, drugs and
> terror, I think we should give some serious thought to declaring war
> on peace.
>
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