Re: [Qemu-devel] -snapshot and tmpsfs

[Michael McConnell]

On Sat, 18 Nov 2006, Ottavio Caruso wrote:

> Are the writes to tmpfs (in a *nix guest OS) recorded to the
> snapshotted image?
> 
> Example: /var/run on tmpfs
> OS writes to /var/run. Bigger temp file or not?

This isn't a guaranteed certain answer, but IIRC tmpfs uses system RAM and 
swap as its storage.  Therefore a guest writing into its tmpfs space would 
only touch the host filesystem if it were to use the swapfile.

As you say you're using the snapshot mode it would, if the swapfile is 
touched, go into the snapshot temp file, otherwise it wouldn't.

-- Michael "Soruk" McConnell
   Eridani Star System

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