Hans Reiser wrote:
>
> Well, if we are only 2.5 times as fast for writes as ext3 after your
> patch is applied, I'll still feel good.;-)
>
whupping ext3's butt on write performance isn't very hard, really ;)
But it should be done based on "feature equivalency". By default,
ext3 uses ordered data writes. Data is written to disk before
the metadata to which that data refers is committed to journal.
It would be questionable to compare a metadata-only journalling
approach to ext3 with data=journal or data=ordered.
Am Freitag, 1. November 2002 02:33 schrieb Andrew Morton:
> Hans Reiser wrote:
> > Well, if we are only 2.5 times as fast for writes as ext3 after your
> > patch is applied, I'll still feel good.;-)
>
> whupping ext3's butt on write performance isn't very hard, really ;)
>
> But it should be done based on "feature equivalency". By default,
> ext3 uses ordered data writes. Data is written to disk before
> the metadata to which that data refers is committed to journal.
>
> It would be questionable to compare a metadata-only journalling
> approach to ext3 with data=journal or data=ordered.
As I understood it Reiser4 would have that from the beginning.
It is all new and not ReiserFS v3 which get this with Chris's data-logging
patches delayed for 2.4.21/2.5.45+.
Plugins for encryption, ACLs, etc are in the works.
-Dieter