Re: Recommendation for minor KVM adjustments for the release

[Nate Williams]

> >> >       - I would like to cap the size of the buffer cache at 200MB,
> >> >         giving us another 70MB or so of KVM which is equivalent to
> >> >         another 30,000 or so nmbclusters.
> >> 
> >>    That also seems like overkill for the vast majority of systems.
> >
> >But probably not for the large-memory systems (and on the machines
> >with small memory the limit will be smaller anyway). Having a
> >machine with a few gigs of memory and being able to use only 200MB
> >for the buffer cache seems to be quite bad for a general-purpose
> >machine. 
> 
>    Uh, I don't think you understand what this limit is about. It's
> essentially the limit on the amount of filesystem directory data that
> can be cached. It does not limit the amount of file data that can
> be cached - that is only limited by the amount of RAM in the machine.

Ahh, thanks for the clarification.  I retract my previous email about
limiting this as well.



Nate

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