[Semibug] OpenBSD To depreciate soft updates

Kyle Willett kyle.d.willett at gmail.com
Thu Jul 6 22:33:47 EDT 2023


Thanks Nick as always.

I misunderstood as you said.  I thought it was to pave a way for
faster FFS in the future.  But yeah it will also make operations that
are faster with soft updates until those faster future bits get
developed slower in the mean time!

Thanks!
Kyle

On 7/6/23, Jonathan Drews <jondrews at fastmail.com> wrote:
>
>
> On Thu, Jul 6, 2023, at 08:27, Kyle Willett wrote:
>> Hi everyone,
>>
>> Hope everyone is well.  So I'm part of this group on Facebook called
>> OpenBSD newbies ran by the same Peter Hansteen that did that wonderful
>> talk earlier in the year or last year I can't remember and he shared
>> this link: https://undeadly.org/cgi?action=article;sid=20230706044554
>>
>> Basically in order to make FFS/UFS faster they have to remove soft
>> updates.  Doesn't look like any user facing changes are made since
>> they made that mount option in fstab just a no op so it does nothing
>> in -CURRENT.
>>
> I have always used soft updates in my fstab. I thought it made writes
> faster.
> According to the man page (man -s 8 mount):
> softdep
>    (FFS only) Mount the file system using soft dependencies. Instead of
> metadata being written immediately, it is written in an ordered fashion
> to keep the on-disk state of the file system consistent. This results in
>  significant speedups for file create/delete operations.
>
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