From mboxrd@z Thu Jan  1 00:00:00 1970
From: Spelic <spelic@shiftmail.org>
Subject: EPRD and TIER vs bcache
Date: Fri, 13 Jul 2012 21:44:51 +0200
Message-ID: <50007AB3.3080309@shiftmail.org>
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Hello all dm developers
have you seen latest kernel projects by Mark Ruijter at www.lessfs.com? 
he has an write-only caching block device with barrier correctness 
(EPRD) and one tiered storage implementation (TIER, which also uses eprd 
inside afaiu). I have not tested this stuff personally but seems very 
interesting.
In particular, latest published benchmarks of TIER against BCACHE at 
lessfs.com show TIER winning by a significant margin (about 2x). This 
stroke me because I read that bcache might be introduced into the kernel 
soon. Might TIER be a better choice?
Regards
S.