Re: [PATCH 0/3] Bcache: version 4

[Kent Overstreet <kent.overstreet@gmail.com>]

On 05/04/2010 02:14 AM, Andi Kleen wrote:
> I read all of this email now and I still have no clue what exactly
> a 'bcache' is and why anyone would want one (and if one needs
> a large stick to handle it or not)
>
> Normally the 0/x series of a patch kit is supposed to contain that
> information.
>
> I know it's probably obvious to you, but it's not to most other readers.
>
> Consider adding some introduction?

Ah, whoops. "Block cache" - it uses one block device to cache another, 
it's intended for SSDs. It's summarized decently in the documentation 
patch, which if I'd thought harder would've been the first email...
http://thread.gmane.org/gmane.linux.kernel/979977
Second patch also has relevant commentary:
http://thread.gmane.org/gmane.linux.kernel/979978
http://thread.gmane.org/gmane.linux.kernel/979979

Currently all the necessary functionality for read only is close to 
done, I'm now doing stress testing. I'm hoping to have it Stable For Me 
and read/write done in a week or two, at which point it should be ready 
for people to start playing with.