On Mon, Nov 21, 2022 at 06:11:57PM +0100, Vlastimil Babka wrote: > SLAB_RECLAIM_ACCOUNT caches allocate their slab pages with > __GFP_RECLAIMABLE and can help against fragmentation by grouping pages > by mobility, but on tiny systems mobility grouping is likely disabled > anyway and ignoring SLAB_RECLAIM_ACCOUNT might instead lead to merging > of caches that are made incompatible just by the flag. > > Thus with CONFIG_SLUB_TINY, make SLAB_RECLAIM_ACCOUNT ineffective. Hm, do you see disabling all kernel memory accounting functionality with COFNIG_SLUB_TINY? I'd say yes. But in this case need to be consistent and disable it alltogether. Thanks!
