Paul Durrant wrote:
Andrew Gallatin wrote:
Isn't the overhead to map/unmap the buffer fairly high? Why don't
you keep the buffer mapped?
That was what I was getting at. If the pool is shared amongst drivers
then the buffer has to be unmapped before being recycled (in case it's
allocated by a different driver) thus blowing away most of the
advantage of loanup.
It was also my concern. The original design is not as the current one.
The partial experiments I conducted on e1000g showed no measurable
impacts in terms of throughput. The current design is also temporary. I
may change the design as the experiments continue.
Miles Xu
_______________________________________________
networking-discuss mailing list
[email protected]
