Check for thrashing

[Davy Durham]

Hi..

  Does anyone know of a plugin that can check if a machine is 
"thrashing" by which I mean it continues to swap and swap.. because 
either there is too little ram, or too many processes running on the 
box.  I would think a vmstat command could tell you that, though it 
would need a few seconds to determine.  And I'm not sure what numbers 
would indicate what a bad amount would be.

Thanks,
  Davy


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