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

From: Manoj Joseph
Date: Fri Apr 27 2007 - 16:56:24 EST

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 Joseph

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