On Tue Jun 27, 2023 at 21:32, David Rientjes wrote: > On Tue, 27 Jun 2023, Julian Pidancet wrote: > > > Make CONFIG_SLAB_MERGE_DEFAULT default to n unless CONFIG_SLUB_TINY is > > enabled. Benefits of slab merging is limited on systems that are not > > memory constrained: the overhead is negligible and evidence of its > > effect on cache hotness is hard to come by. > > > > I don't have an objection to this, I think it makes sense. > > When you say overhead here, I assume you're referring to memory footprint? > Did you happen to have some system-wide numbers for what that looks like > when running some benchmarks, or even what the slab usage looks like after > a fresh boot? > Thank you David for the quick review. I'll re-run the benchmark and measure slab usage when the system is under pressure. Regards, -- Julian
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