On Mon, May 30, 2016 at 03:59:51PM +0200, Sebastian Andrzej Siewior wrote: > On 05/30/2016 03:49 PM, Peter Zijlstra wrote: > >> The same thing can happen within a Task if you take my story from above > >> and replace task with thread. Completely understood. > > > > Right; so I don't see the point of PREALLOCATE_HASH to cater for RT > > workloads if it still doesn't guarantee anything, esp. if the failure > > case is silent and obscure. > > So what do you suggest? Adding trace points in order to learn about > possible collisions or using tickets (on top of this) to guarantee > being collision free?
I have no idea about the ticket stuff, i've not seen it. But yes, you need to somehow guarantee no collisions.
