On Mon, 17 Jun 2019 17:10:49 +0200 Alexander Potapenko <glider@xxxxxxxxxx> wrote: > Slowdown for the new features compared to init_on_free=0, > init_on_alloc=0: > > hackbench, init_on_free=1: +7.62% sys time (st.err 0.74%) > hackbench, init_on_alloc=1: +7.75% sys time (st.err 2.14%) Sanity check time. Is anyone really going to use this? Seriously, honestly, for real? If "yes" then how did we determine that? Also, a bit of a nit: "init_on_alloc" and "init_on_free" aren't very well chosen names for the boot options - they could refer to any kernel object at all, really. init_pages_on_alloc would be better? I don't think this matters much - the boot options are already chaotic. But still...