<br>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.<br><div><br>
<div class="gmail_quote">2009/7/6 Andreas Ericsson <span dir="ltr"><<a href="mailto:ae@op5.se">ae@op5.se</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div><div></div><div class="h5">Tore Lønøy wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hello naguis usergroup!<br>
<br>
I have for some time now tried to find a way to monitor performance<br>
bottlenecks related to shortage of memory on Windows, with no luck. As far<br>
my knowlegde of memory bottlenecks concern, using NSClient++ command<br>
CheckMem and argument physical, is far from enough. Also, monitoring windows<br>
performance counters, like Memory \ Pages Out/sec is no good either since it<br>
doesn't support average results.<br>
<br>
There is alot of documentation on how to determine that memory is a<br>
bottleneck, like e.g.: <a href="http://support.microsoft.com/kb/555223" target="_blank">http://support.microsoft.com/kb/555223</a><br>
<br>
But, for what I understand, using nagios to determine this is hard.<br>
<br>
So how do you guys locate memory bottlenecks on windows machines, with or<br>
without the help of nagios?<br>
<br>
</blockquote>
<br></div></div>
By checking the swap usage. Basically, when a system starts swapping<br>
performance will go downhill very, very fast. The disk is several hundred<br>
orders of magnitude slower than the RAM. If you have high swap usage, you<br>
should buy more RAM for your servers (or modify whatever programs are<br>
running on them).<br><font color="#888888">
<br>
-- <br>
Andreas Ericsson <a href="mailto:andreas.ericsson@op5.se" target="_blank">andreas.ericsson@op5.se</a><br>
OP5 AB <a href="http://www.op5.se" target="_blank">www.op5.se</a><br>
Tel: +46 8-230225 Fax: +46 8-230231<br>
<br>
Considering the successes of the wars on alcohol, poverty, drugs and<br>
terror, I think we should give some serious thought to declaring war<br>
on peace.<br>
</font></blockquote></div><br></div>