On Fri, Nov 13, 2015 at 05:23:39PM +0200, Or Gerlitz wrote: > On Fri, Nov 13, 2015 at 3:46 PM, Christoph Hellwig <hch@xxxxxx> wrote: > > The new name is irq_poll as iopoll is already taken. Better suggestions > > welcome. > > Sagi (or Christoph if you can address that), > > @ some pointer over the last 18 months there was a port done at > mellanox for iser to use blk-iopoll and AFAIR it didn't work well or > didn't work at all. Can you tell now what was the problem and how did > you address it at your generalization? Hi Or, Sagi mentioned last time he tried a similar approach in iSER he saw some large latency sparks. We've seen nothing worse than the original approach. The Flash memory summit slide set has some numbers: http://www.flashmemorysummit.com/English/Collaterals/Proceedings/2015/20150811_FA11_Bandic.pdf they aren't quite up to date, but the latency distribution hasn't really changed. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
