On Thu, 17 Jun 2010, Oliver Neukum wrote: > Am Donnerstag, 17. Juni 2010 05:41:24 schrieb David Brownell: > > Oliver, I sill don't understand what you're > > trying to say,or how it relates to the > > structural point I was making: that the > > batching isn'treally needed (or helpful) > > given sane USB DMA/transfer queues > > (as on Linux). > > OK, I see the problem. I doubt that batching is useless. I do agree > it is useless on the host. But the device is most likely optimized > for batches. So I doubt we can get optimum throughput without > batching on the tx path. Oliver, it's hard to tell exactly what you mean. You haven't said what sort of "batching" you want to do, or how the network packet boundaries must be situated with respect to the USB packet boundaries. > Unfortunately I think this will need experimentation to show the > effects. Undoubtedly. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
