On Thu, Jul 27, 2017 at 04:36:24PM +0200, Peter Zijlstra wrote: > On Thu, Jul 27, 2017 at 07:32:05AM -0700, Paul E. McKenney wrote: > > > as per your proposed patch, will spray IPIs to all CPUs and at high > > > rates. > > > > OK, I have updated my patch to do throttling. > > But not respect cpusets. Which is the other important point. > > The scheduler based IPIs are limited to where we are allowed to place > tasks (as are the TLB ones for that matter, for the exact same reason).
Yes, these are disadvantages, no argument there. But I will nevertheless be carrying some variant of this patch until something better exists, including that something being tested and found satisfactory by the various people asking for this. Thanx, Paul