Nagios, memory tests, and Linux hosts...

[Andrew Davis]

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?

-- 


  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

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