Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comatose whenFS is under heavy write load (massive starvation)

[Manoj Joseph]

Linus Torvalds wrote:
> On Fri, 27 Apr 2007, Andreas Dilger wrote:
> > It's true that this is a "feature" of ext3 with data=ordered (the default),
> > but I suspect the same thing is now true in reiserfs too.
>
> Oh, well.. Journalling sucks.

Go back to ext2? ;)

> I was actually _really_ hoping that somebody would come along and tell 
> everybody that this whole journal-logging is stupid, and that it's just 
> better to not ever re-write blocks on disk, but instead write to new 
> blocks with version numbers (and not re-use old blocks until new versions 
> are stable on disk).

Ah, "copy on write"! ZFS (Sun) and WAFL (NetApp) does this. Don't know 
about WAFL, but ZFS does logging too.

-Manoj

--
Manoj Joseph
http://kerneljunkie.blogspot.com/

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