On Fri, Feb 02, 2018 at 12:42:29PM +0100, Rafael J. Wysocki wrote: > > Yes, too many synchronous IPIs, which themselves are typically already > > more expensive than the MSR access. > > We could do all of the updates in one IPI (as Srinivas said), but it would be > more code, and custom code for that matter. > > Is this really worth it for a slow path like this one?
Probably not, still, the pattern really annoys me ;-)
