| Date | Wed, 17 Jun 2020 18:18:58 -0700 | From | Roman Gushchin <> | Subject | Re: [PATCH v6 00/19] The new cgroup slab memory controller |
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On Tue, Jun 16, 2020 at 06:46:56PM -0700, Shakeel Butt wrote: > On Mon, Jun 8, 2020 at 4:07 PM Roman Gushchin <guro@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!
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