Re: Soft updates for 2.5?

Michael Rothwell (rothwell@holly-springs.nc.us)
01 Jul 2001 22:58:04 -0400


While on the topic of reslilent, high-performance filesystems, what ever
became of "Tux", Daniel Philip's mythical WAFL-type filesystem?

On 01 Jul 2001 23:33:52 -0300, Rik van Riel wrote:
> On Sat, 30 Jun 2001, Alex Khripin wrote:
>
> > There was a discussion in October, 2000, about the Granger and
> > McKusick paper on soft updates for the BSD FFS. Reading the thread,
> > nothing conclusive seemed to come out of it.
>
> What you want is ext3.
>
> It is a journaling version of ext2, which basically
> means you get all the advantages of soft updates and
> a bit more (due to the atomicity that journaled
> transactions can give you).
>
> It should be superior to softupdates in both the
> consistency area and the performance area (due to
> the fact that stuff is in the journal, you have
> more freedom to reorder the writes to the "main"
> part of the filesystem).
>
> regards,
>
> Rik
> --
> Virtual memory is like a game you can't win;
> However, without VM there's truly nothing to lose...
>
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>
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>
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--
Michael Rothwell
rothwell@holly-springs.nc.us

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