[alsa-devel] [PATCH 1/2 v2] ASoC: soc-cache: block based rbtree compression

[Mark Brown]

On Tue, May 03, 2011 at 03:32:47PM +0200, Takashi Iwai wrote:

> Hrm, then I don't understand why changing the cache management changes
> the bulk I/O behavior as you described.  What's missing there?

If we can't get the data laid out in a contiguous array in memory then
we have to gather the data for transmit in the I/O code which is
painful and wasteful.  As I say for other cache formats this isn't an
issue.