Bug#702256: ITP: enhanceio -- dynamic block device cache for Linux

[Dmitry Smirnov <onlyjob@member.fsf.org>]

On Tue, 5 Mar 2013 13:39:38 Liang Guo wrote:
> JFYI: In linux 3.9-rc1, dm-cache are merged to mainstream kernel,

Interesting, thank you.
You're talking about https://github.com/mingzhao/dm-cache
right?

I've seen it but couldn't figure out how to use it...
Nice to have it merged though even if it is not immediately useful...


> which can be used
> to replace EnahnceIO/flashcache/bcache(IMO).

IMHO bcache will never be a viable option due to maintenance overhead of 
custom patched kernel and (more important) because bcache require special 
preparation/formatting of block devices and therefore can't be plugged to 
existing file systems with data.

I see that flashcache matured since 2011 and these days it doesn't cripple 
performance-wise as it used to.

EnhancIO is just fantastic and (hopefully) immediately useful. Package is 
ready and only lacking reasonable testing so you're very welcome to try it. :)


Regards,
 Dmitry Smirnov
 GPG key : 4096R/53968D1B