On Thu, Aug 03, 2017 at 09:15:12AM -0700, Dan Williams wrote: > > I can put in a tunable knob like Johannes suggested and leave the > > default for that to what it is currently. And we can adjust as necessary > > as we do more testing. > > That's the problem, we need a multi-dimensional knob. It's not just > transfer-size that effects total delivered bandwidth. If Dan opposes it so much, I'm OK with no tunable. I'm just expressing my concern that we get reports like this [1] one here as a result. Thanks, Johannes [1] http://marc.info/?l=linux-kernel&m=150175029403913&w=2 -- Johannes Thumshirn Storage jthumshirn@xxxxxxx +49 911 74053 689 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg) Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850 -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
