Re: [B.A.T.M.A.N.] [PATCH v2] batman-adv: use kmem_cache for translation table

On Mon, Jun 27, 2016 at 08:09:58AM +0200, Sven Eckelmann wrote: Freifunk Rhein-Neckar at about 4pm (~700 nodes, ~1800 clients, batman-adv compat15): ----- batadv_tt_roam_cache 0 0 64 63 1 : tunables 120 60 8 : slabdata 0 0 0 batadv_tt_req_cache 1 63 64 63 1 : tunables 120 60 8 : slabdata 1 1 0 batadv_tt_change_cache 0 0 32 124 1 : tunables 120 60 8 : slabdata 0 0 0 batadv_tt_orig_cache 3210 3213 64 63 1 : tunables 120 60 8 : slabdata 51 51 0 batadv_tg_cache 3162 3162 128 31 1 : tunables 120 60 8 : slabdata 102 102 0 batadv_tl_cache 2 31 128 31 1 : tunables 120 60 8 : slabdata 1 1 0 ----- -> snapshot taken from an x86 machine connected to a Gluon ar71xx node. So the roam, req, change and tl cache are mostly empty here. On the other hand, they could probably gain a significant size once a larger LAN gets bridged to bat0, I guess. Also looks like various file systems have about half a dozen caches each with most of them being quite empty most of the time. So, I guess it's ok to have the roam/req/change/tl caches. Not sure whether I should (since TT is Antonio's part) but the patch looks correct, the previous version with the same concept tested and looks very similar to what I had incidentally been coding at the same time as Sven :), so: Acked-by: Linus Lüssing <linus.luessing(a)c0d3.blue>