who's using tmpfs?

[Jerry McBride]

On Sun, 15 Sep 2002 12:36:48 -0700 Net Llama! <netllama at linux-sxs.org> wrote:

> Jerry McBride wrote:
> > On Thu, 12 Sep 2002 18:03:07 -0700 "Net Llama!" <netllama at linux-sxs.org>
> > wrote:
> > 
> > 
> >>I'm working on a project where i think tmpfs might be beneficial.  Can 
> >>anyone provide any hints or gotchas that i should be aware of?  Also, 
> >>anyone willing to write a brief SxS?
> >>
> > 
> > 
> > 
> > If tmpfs isn't a block device... would it therefore have faster I/O than a
> > regular ramdisk? Seems to me that it would be, with less overhead...
> 
> Dunno.  I would think it would be the same speed, since its all in 
> memory regardless.
> 

Something else in the article mentioned elsewhere... it claims to be dynamic,
grows as needed and then shrinks when possible and... it swaps to the swap
partiton when/if needed...

At first glance I had the idea that it was quite fast, but there could be
performance hits is your data set changes size often or forces a commit to the
swap space...  

I would hazard a guess that a simple ramdisk, of the correct size, would be
either faster or as fast as a tmpfs "disk". If I can find the time, I'd be
willing to run some simple benchmarks if anyone would be interested.

Cheers.


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