>: Yes, I do - at least with the 512MB figure. That would be half of the 1GB
>:KVA space and large systems really need that space for things like network
>:buffers and other map regions.
>:
>:-DG
>:
>:David Greenman
>:Co-founder/Principal Architect, The FreeBSD Project - http://www.freebsd.org
>:Creator of high-performance Internet servers - http://www.terasolutions.com
>
> What would be an acceptable upper limit? 256MB? 128MB? The test
> I ran (Kirk's news test) ate around 60MB for the "FFS Node" memory area
> before the number of vnodes stabilized, on a 1GB machine. I would say
> that a 128MB upper limit would be too small for a 4G machine. A 256MB
> limit ought to work for a 4G machine
>
> Since most of those news files were small, I think Kirk's news test code
> is pretty much the worse case scenario as far as vnode allocation goes.
Well, I could possibly live with 256MB, but the vnode/fsnode consumption
seems to be getting a bit silly in the memory overhead department, even for
machines with 4GB of RAM. It seems like there needs to be fewer of them
and/or they need to go on a diet.
-DG
David Greenman
Co-founder/Principal Architect, The FreeBSD Project - http://www.freebsd.org
Creator of high-performance Internet servers - http://www.terasolutions.com
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