/tmp and swap space
david at catwhisker.org
Thu Jul 29 16:33:08 UTC 2010
On Thu, Jul 29, 2010 at 08:35:30AM -0700, gahn wrote:
> hi all:
> is it possible to create /tmp directory under swap space?
Certainly; case in point:
localhost(9.0-C) uname -v
FreeBSD 9.0-CURRENT #71 r210558M: Wed Jul 28 07:46:04 PDT 2010 root at localhost:/usr/obj/usr/src/sys/CANARY
localhost(9.0-C) df -h /tmp
Filesystem Size Used Avail Capacity Mounted on
tmpfs 2.0G 12K 2.0G 0% /tmp
> under solaris, it is automatically created under swap unless one specifically instructs the system not to do so..
What I do -- both in CURRENT as well as stable/7 and stable/8 -- is:
localhost(9.0-C) grep tmpfs /etc/fstab
tmpfs /tmp tmpfs rw,size=2g 0 0
Note: doing this causes a message:
WARNING: TMPFS is considered to be a highly experimental feature in FreeBSD.
to be issued. That said, I've been using it quite a bit in the last
couple of months, and have never had an issue with it of which I'm aware.
The way I used to set up swap-backed /tmp was to have the following in
# tmpmfs_flags="-i4096 -o async"
(but since I'm now using tmpfs, I commented the above out in /etc/rc.conf).
david (a fan of swap-backed /tmp)
David H. Wolfskill david at catwhisker.org
Depriving a girl or boy of an opportunity for education is evil.
See http://www.catwhisker.org/~david/publickey.gpg for my public key.
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