On Mar 31, 2006, at 2:04 PM, Andrew Grover wrote:

On 3/31/06, Ingo Oeser [off-list ref] wrote:

quoted

Kumar Gala wrote:

quoted

Fair, but wouldn't it be better to have the association per client.

Maybe leave the one as a summary and have a dir per client with
similar stats that are for each client and add a per channel summary
at the top level as well.

Such level of detail really belongs to debugging, IMHO.

[snip]

If we implemented more stats then yes debugfs sounds like it might be
the way to go.

quoted

BTW: What is the actual frequency, at which such counters
will be incremented?

Currently the code updates these variables (kept per cpu) every time a
copy is queued. See include/linux/dmaengine.h.

Might it be better to update when the transfer is done incase of an  
error?

- kumar