On Wed, 22 Aug 2018, Paul Menzel wrote: > Am 21.08.2018 um 11:37 schrieb Paul Menzel: > > [Removed non-working Pavel Tatashin <pasha.tatashin@xxxxxxxxxx>] > > So “free’ing” pfn = 225278 to e_pfn = 818492 in the for loop takes 160 ms. That's 593214 pages and each one takes about 270ns. I don't see much optimization potential with that. 32bit and highmem sucks ...
