On Tue, Jun 16, 2020 at 06:46:56PM -0700, Shakeel Butt wrote: > On Mon, Jun 8, 2020 at 4:07 PM Roman Gushchin <g...@fb.com> wrote: > > > > This is v6 of the slab cgroup controller rework. > > > > The patchset moves the accounting from the page level to the object > > level. It allows to share slab pages between memory cgroups. > > This leads to a significant win in the slab utilization (up to 45%) > > and the corresponding drop in the total kernel memory footprint. > > Is this based on just SLUB or does this have a similar impact on SLAB as well?
Just got some fresh numbers on my desktop running 5.8-rc1 + slab controller v6. It's 8-cores Ryzen 1700 with 32 GB RAM running Fedora 32. I measured the size of slab memory just after logging into the system. SLUB SLAB Original: 463232 kB 312880 kB Patched: 194840 kB 193392 kB -58% -38% Plus perpcu memory usage is also a bit lower. Thanks!