DragonFly kernel List (threaded) for 2010-02
Re: kernel work week of 3-Feb-2010 HEADS UP
I usually only lurk on the DF lists, but I just have to jump in and say
how cool I think this is. I'll definitely have to try out the next
On Wed, 3 Feb 2010, Matthew Dillon wrote:
:Would such a SSD cache also improve write performance of a HAMMER file
:To improve write performance we'd probably need to put the UNDO/REDO log
:on a SSD...
No, the first iteration is strictly a clean slaved throw-away copy.
. ..but you are leaving some room for also using it as a write cache later,
right? Whether it's some special hook for HAMMER's un/redo log, or
something completely filesystem agnostic, it seems it could be a huge
benefit to some applications. (like databases?)
Just thinking out loud: if you have some resident-like way of "locking"
data on the SSD, that might be an interesting way to get something similar
to ReadyBoost. (That would perhaps make for a neat GSoC project?)