Jeff Garzik wrote:
>
> Hans Reiser wrote:
>
> > We are going to submit a patch appropriate for inclusion as an
> > experimental FS on Halloween. I hope you will forgive our pushing
> > the limit timewise, it is not by choice, but the algorithms we used to
> > more than double reiserfs V3 performance were, quite frankly, hard to
> > code.
>
> Does your merge change the core code at all? Does it add new syscalls?
>
Their changes are tiny, and sensible. See
http://www.namesys.com/snapshots/2002.10.29/
But I'd like to ask about the status of reiser3 support.
Chris had patches *ages* ago to convert it to use direct-to-BIO for
reads, and writes should be done as well. reiserfs3 is still using
buffer-head-based IO for bulk reads and writes. That's a 25-30% hit
in CPU cost, and all the old ZONE_NORMAL-full-of-buffer_heads
problems.
Any plans to get that work finished off?
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This archive was generated by hypermail 2b29 : Thu Oct 31 2002 - 22:00:46 EST