On Thu, Jul 05, 2018 at 03:10:30PM -0700, Andrew Morton wrote:
> On Wed, 4 Jul 2018 18:51:12 +0300 Kirill Tkhai wrote:
>
> > > - why aren't we decreasing shrinker_nr_max in
> > > unregister_memcg_shrinker()? That's easy to do, avoids pointless
> > > work in shrink_slab_memcg() and avoids mem
On Tue, Jul 03, 2018 at 01:50:00PM -0700, Andrew Morton wrote:
> On Tue, 03 Jul 2018 18:09:26 +0300 Kirill Tkhai wrote:
>
> > Imagine a big node with many cpus, memory cgroups and containers.
> > Let we have 200 containers, every container has 10 mounts,
> > and 10 cgroups. All container tasks do
On Tue, Jul 03, 2018 at 01:50:00PM -0700, Andrew Morton wrote:
> It should be possible to find the highest ID in an IDR tree with a
> straightforward descent of the underlying radix tree, but I doubt if
> that has been wired up. Otherwise a simple loop in
> unregister_memcg_shrinker() woul
On Wed, 4 Jul 2018 18:51:12 +0300 Kirill Tkhai wrote:
> > - why aren't we decreasing shrinker_nr_max in
> > unregister_memcg_shrinker()? That's easy to do, avoids pointless
> > work in shrink_slab_memcg() and avoids memory waste in future
> > prealloc_memcg_shrinker() calls.
>
> You sure,
On 03.07.2018 23:50, Andrew Morton wrote:
> On Tue, 03 Jul 2018 18:09:26 +0300 Kirill Tkhai wrote:
>
>> Imagine a big node with many cpus, memory cgroups and containers.
>> Let we have 200 containers, every container has 10 mounts,
>> and 10 cgroups. All container tasks don't touch foreign
>> con
On Tue, 03 Jul 2018 18:09:26 +0300 Kirill Tkhai wrote:
> Imagine a big node with many cpus, memory cgroups and containers.
> Let we have 200 containers, every container has 10 mounts,
> and 10 cgroups. All container tasks don't touch foreign
> containers mounts. If there is intensive pages write,
Imagine a big node with many cpus, memory cgroups and containers.
Let we have 200 containers, every container has 10 mounts,
and 10 cgroups. All container tasks don't touch foreign
containers mounts. If there is intensive pages write,
and global reclaim happens, a writing task has to iterate
over a
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