Hi,

I love aufs but wonder if it's kernel page cache friendly.

In my setup I have a shared folder with lot's of tools, libs, etc. 
installed. I now mount this read-only to several locations and start the 
tools from there. Does this result in reduced memory usage (as it would 
be the case if I started the same tool several times from the same path 
without using aufs)?

mount -t aufs -o br:/home/custom1=rw:/home/shared=rr none /home/merged1
mount -t aufs -o br:/home/custom2=rw:/home/shared=rr none /home/merged2

/home/merged1/tool
/home/merged2/tool

The program "tool" and its libs are of course not "overwritten" in any 
of the custom paths.

BTW: Is aufs really no longer maintained anymore like wikipedia 
(http://en.wikipedia.org/wiki/UnionFS) tells me? Which one is better in 
terms of longtime support?

Thanks,
Corin


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