On Wed, 25 Oct 2017, Prarit Bhargava wrote: > From: Andi Kleen <a...@linux.intel.com> > > The SNB-EP uncore driver is the only user of topology_phys_to_logical_pkg > in a performance critical path. Change it query the logical pkg ID > only once at initialization time and then cache it in box structure.
That second sentence needs some care: Avoid the lookup in the hotpath and cache the id at initialization time. This is also a prerequisite to change the underlying logical package management implementation w/o impacting this driver. Other than that. Reviewed-by: Thomas Gleixner <t...@linutronix.de>
