Nagios, memory tests, and Linux hosts...

[Andrew Davis]

Looks good, but no performance data, which I would like to be able to 
trend memory usage and justify upgrades. Anyone familiar with a good 
memory test that properly handles memory reservations AND also includes 
performance trending data?

  A. Davis
  Email:     nccomp at gmail.com

  "There is no limit to what a man can accomplish
   if he doesn't care who gets the credit." - Ronald Reagan



Justin Pasher wrote:
> Andrew Davis wrote:
>> So along with disk and CPU tests, I want to test for memory usage. I 
>> pulled a perl memory script off Nagios Exchange and was quickly 
>> reminded of how linux handles memory... how it leaves whatever has 
>> been used previously as "reserved". Thus, a server with 4Gb of RAM 
>> may show that 3.95Gb is in use, but in reality, more like 512Mb is in 
>> use and the swap usage is under 10%, if used at all, confirming the 
>> "actual versus reserved" issue. So how are you guys testing for 
>> memory on Linux boxes that flag it as reserved when its not? Are 
>> there any scripts on Nagios Exchange for memory testing that are 
>> better than others?
>
> I use check_memory.pl. It properly takes buffers and cache into 
> consideration (using the "free" command).
>
> http://www.nagiosexchange.org/cgi-bin/page.cgi?g=Detailed%2F1433.html;d=1
>
> -- 
> Justin Pasher
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