On 01/11/2017 04:07 PM, Jens Axboe wrote: > On 01/11/2017 06:43 AM, Johannes Thumshirn wrote: >> Hi all, >> >> I'd like to attend LSF/MM and would like to discuss polling for block drivers. >> >> Currently there is blk-iopoll but it is neither as widely used as NAPI in the >> networking field and accoring to Sagi's findings in [1] performance with >> polling is not on par with IRQ usage. >> >> On LSF/MM I'd like to whether it is desirable to have NAPI like polling in >> more block drivers and how to overcome the currently seen performance issues. > > It would be an interesting topic to discuss, as it is a shame that blk-iopoll > isn't used more widely. > Indeed; some drivers like lpfc already _have_ a polling mode, but not hooked up to blk-iopoll. Would be really cool to get that going. Cheers, Hannes -- Dr. Hannes Reinecke Teamlead Storage & Networking hare@xxxxxxx +49 911 74053 688 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton HRB 21284 (AG Nürnberg) -- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
