Re: noatime on ufs2
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Date: Fri, 12 Jan 2024 07:28:43 UTC
Rodney W. Grimes <freebsd-rwg_at_gndrsh.dnsmgr.net> wrote on Date: Thu, 11 Jan 2024 17:15:19 UTC : > > Am 2024-01-10 22:49, schrieb Mark Millard: > > > > > I never use atime, always noatime, for UFS. That said, I'd never > > > propose > > > changing the long standing defaults for commands and calls. I'd avoid: > > > > [good points I fully agree on] > > > > There's one possibility which nobody talked about yet... changing the > > default to noatime at install time in fstab / zfs set. > > Perhaps you should take a closer look at what bsdinstall does > when it creates a zfs install pool and boot environment, you > might just find that noatime is already set everywhere but > on /var/mail: > > /usr/libexec/bsdinstall/zfsboot:: ${ZFSBOOT_POOL_CREATE_OPTIONS:=-O compress=lz4 -O atime=off} > /usr/libexec/bsdinstall/zfsboot: /var/mail atime=on > > > > > I fully agree to not violate POLA by changing the default to noatime in > > any FS. I always set noatime everywhere on systems I take care about, no > > exceptions (any user visible mail is handled via maildir/IMAP, not > > mbox). I haven't made up my mind if it would be a good idea to change > > bsdinstall to set noatime (after asking the user about it, and later > > maybe offer the possibility to use relatime in case it gets > > implemented). I think it is at least worthwile to discuss this > > possibility (including what the default setting of bsdinstall should be > > for this option). > > Little late... iirc its been that way since day one of zfs support > in bsdinstall. > > > -- > > http://www.Leidinger.net Alexander@Leidinger.net: PGP 0x8F31830F9F2772BF > > http://www.FreeBSD.org netchild@FreeBSD.org : PGP 0x8F31830F9F2772BF The UFS based snapshots are more of a mix. The one that I just dd'd to media has: # more /etc/fstab # Custom /etc/fstab for FreeBSD embedded images /dev/ufs/rootfs / ufs rw 1 1 /dev/msdosfs/EFI /boot/efi msdosfs rw,noatime 0 0 tmpfs /tmp tmpfs rw,mode=1777 0 0 /dev/label/growfs_swap none swap sw 0 0 So the UFS does not have noatime set up for its mount but the msdosfs does. === Mark Millard marklmi at yahoo.com