Re: [PATCH 1/9] [I/OAT] DMA memcpy subsystem

[Andrew Grover]

On 3/31/06, Ingo Oeser <netdev@xxxxxxxx> wrote:
> Kumar Gala wrote:
> > 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.

> 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.

-- Andy
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