On 2021-10-01 05:24:49 [+0100], Christoph Hellwig wrote: > On Thu, Sep 30, 2021 at 12:56:05PM +0200, Sebastian Andrzej Siewior wrote: > > Is there a reason for the remaining user of irq_poll to keep using it? > > At least for RDMA there are workloads where the latency difference > matters. That's why we added both the irq_poll and workqueue mode > to thew new CQ API a few years ago. Would it work for them to move to threaded interrupts or is the NAPI like behaviour (delay after a while to the next jiffy) the killer feature? Sebastian
