Subject: Re: [Cbe-oss-dev] [PATCH/RFC] ps3/block: Add ps3vram-ng driver for accessing video RAM as block device

From: "Marcus G. Daniels" <[email-masked]>
Date: Wed, 04 Mar 2009 17:21:42 -0700

Geert Uytterhoeven wrote:
> Ideally, we think it would be best if the existing MTD-based ps3vram driver
> would be replaced by the new block-based ps3vram driver before 2.6.29 is
> released. This would relieve the burden of supporting two different swap space
> schemes on PS3 (swap on /dev/mtdblock0 vs. /dev/ps3vram) from the distro
> maintainer's shoulders, as in that case there would never have been a stable
> kernel version containing the MTD-based ps3vram driver.
> [..]
>   - ps3vram-ng is faster than ps3vram:
>       o 1 MiB blocks: +50% (read), +5% (write)
>       o 4 KiB blocks: +50% (read), +5% (write)
>       o 512 B blocks: +10% (read), +10% (write)
>   
Fwiw, it's a useful swap device, since space is so limited -- the 
performance improvements are certainly appealing too.

Marcus