softupdates for ext2fs? (was: fstab - `defaults' and `sync')
Ethan Benson <erbenson@alaska.net> writes:
> On 27/12/99 Arcady Genkin wrote:
>
> >If I want to mount a partition with `sync' option, can I keep
> >`defaults'? I know `defaults' implies `async', but will explicitly
> >specifying `sync' override that?
>
> yup, just like defaults,ro will mount readonly despite the fact that
> defaults includes the rw option.
>
> sync may not help though, i recently turned it on for the root
> filesystem then a few days later i had massive fs corruption on it.
> I don't THINK it was related because after the reinstall i left it
> async and had it ruined again...
>
> sync will for sure make the fs unbearably slow.
Yeah, I know. I only want to do it on my root partition. I had a power
failure yesterday, and there were problems when I rebooted.
On a side note, there is such thing as `softupdates' developed in
FreeBSD. Apparently, it allows synced disk I/O comparable in speed to
memory-based (async). Is anything like that going to be implemented
for ext2fs?
(For those of you who haven't heard of softupdates)
http://www.ece.cmu.edu/~ganger/papers/CSE-TR-254-95/
--
Arcady Genkin http://wgaf.dyndns.org
"'What good is my pity? Is not the pity the cross upon which he who
loves man is nailed?..'" (Zarathustra - F. Nietzsche)
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