[CentOS] Swap memory: I can't reconcile this stuff.

[Les Mikesell]

On Mon, 2006-06-05 at 18:34, Kai Schaetzl wrote:


> > 24729  127m  32m  15m  4.3  94m evolution
> 
> It looks to me like top is using a different definition of swap. If you 
> compare you see that SWAP shows the difference between VIRT and RES almost 
> exactly. However, if there is no or almost no swap usage how can there be 
> a difference? Only explanation: it shows what *could* be swapped 
> immediately without affecting current activity. 

I think what it means is that the virtual memory page table space
has been allocated but the page hasn't been accessed yet.

> Have you tried making it heavily swap and then checked if you see a 
> difference (whichever)? Theoretically, it shouldn't make a difference as 
> it doesn't seem to differentiate between "swapped" and "really swapped".

How about 'not paged in yet'?  

-- 
  Les Mikesell
   lesmikesell at gmail.com