On Thu, Feb 20, 2020 at 01:45:45PM -0500, Tejun Heo wrote: > The setup cost can be lazy optimized but it'd still have to bounce the > tiny pieces of work to different threads instead of processing them in > one fell swoop from the same context, which most likely is gonna be > untenably expensive. I see, your last mail is clearer now. If it's easy to do, a pointer to where this happens would help so we're on the same page. thanks, Daniel