On Saturday 05 March 2011 12:47:39 Kent Hagebrand wrote:
> Yes, I use tmpfs on /vat/tmp/portage to reduce the disk i/o on my laptop.
> Here is the line I use in the /etc/fstab:
> 
> none       /var/tmp/portage       tmpfs       nr_inodes=1M,size=2G     0 0
> 
> This will allow the directory  /var/tmp/portage to use at most 2GB of
> memory (I have 4GB).
> It is enough to compile most of the packages in portage.

I compile in /tmp which is tmpfs, and I was thinking of /var/run as tmpfs

On Saturday 05 March 2011 12:29:19 Florian Philipp wrote:
> /var as tmpfs is not a good idea. There are lots of persistent files in
> there. If you want to be standard-conformant, you cannot even mount
> /var/tmp as tmpfs because its content is also meant to survive reboots.
> You can still do it though and mounting /tmp as tmpfs is completely okay.
> 
> Your choice of filesystem has little or no effect. You could proably
> argue that JFS needs less CPU resources than for example ReiserFS but
> that really doesn't matter.
> 
> What you really want is app-laptop/laptop-mode-tools.
> 
> Hope this helps,
> Florian Philipp

with reiserfs, the disk is said to run all over the time !

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