[OpenIndiana-discuss] ashift 13?

[Bob Friesenhahn]

On Wed, 8 Apr 2015, Jason Matthews wrote:

> Do you have any notion what if any performance penalty there is staying with 
> 512 byte sectors?

I have no idea what the penalty with your SSDs would be, but the 
penalty should only be when writing.

SSDs need to erase a block before they can write.  Without a good 
matchup, they will need to do read/modify/write, or 
read/modify/erase/write.  This will severely hurt performance once the 
device becomes rather full.

Bob
-- 
Bob Friesenhahn
bfriesen at simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/