On Thu 17-10-19 17:28:04, Roman Gushchin wrote: [...] > Using a drgn* script I've got an estimation of slab utilization on > a number of machines running different production workloads. In most > cases it was between 45% and 65%, and the best number I've seen was > around 85%. Turning kmem accounting off brings it to high 90s. Also > it brings back 30-50% of slab memory. It means that the real price > of the existing slab memory controller is way bigger than a pointer > per page. How much of the memory are we talking about here? Also is there any pattern for specific caches that tend to utilize much worse than others? -- Michal Hocko SUSE Labs
