best file system ?

James
Thu, 18 Dec 2014 10:45:13 -0000

On 18/12/2014 08:57, Marc Stuermer wrote:

> ZFS on Linux is being maintained outside the kernel and eats up memory
> like a horde of cockroaches. So this is also for most no viable choice.

I can't speak for ZFS on Linux but the subject is "best file
system?"
not "best file system for Linux?".

ZFS uses spare RAM but does not "eat" it.

I have a system here with 64GB RAM and 48GB is being used by ZFS.  It's
only using RAM that is otherwise unused and if my file system were not
using 48GB RAM it would be wasted.  It's not taking RAM from programs
and if I ask for RAM the amount used by ZFS reduces.  The system has an
amount of a free RAM and in timing tests I can not perceive any
difference in taking RAM from the free buffer or when the amount
requested is large enough to require ZFS to give some up.

I also have ZFS on a 12 year old Celeron laptop with 1G RAM and it runs
without any problems.

That ZFS needs a lot of RAM or CPU is false.

"zfs set -o compress=gzip" works wonders for mail storage.