Re: [PATCH 00/16] The new slab memory controller

[Michal Hocko]

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