Hi,
this series adds socket buffer memory tracking and accounting to the
unified hierarchy memory cgroup controller.
[ Networking people, at this time please check the diffstat below to
avoid going into convulsions. ]
Socket buffer memory can make up a significant share of a workload's
memory
On Mon, Oct 26, 2015 at 01:22:16PM -0400, Johannes Weiner wrote:
> On Thu, Oct 22, 2015 at 09:45:10PM +0300, Vladimir Davydov wrote:
> > Hi Johannes,
> >
> > On Thu, Oct 22, 2015 at 12:21:28AM -0400, Johannes Weiner wrote:
> > ...
> > > Patch #5 adds accounting and tracking of socket memory to the
On Tue, Oct 27, 2015 at 11:43:21AM +0300, Vladimir Davydov wrote:
> On Mon, Oct 26, 2015 at 01:22:16PM -0400, Johannes Weiner wrote:
> > I'm not getting rid of those knobs, I'm just reusing the old socket
> > accounting infrastructure in an attempt to make the memory accounting
> > feature useful t
On Tue, Oct 27, 2015 at 09:01:08AM -0700, Johannes Weiner wrote:
...
> > > But regardless of tcp window control, we need to account socket memory
> > > in the main memory accounting pool where pressure is shared (to the
> > > best of our abilities) between all accounted memory consumers.
> > >
> >
On Wed, Oct 28, 2015 at 11:20:03AM +0300, Vladimir Davydov wrote:
> Then you'd better not touch existing tcp limits at all, because they
> just work, and the logic behind them is very close to that of global tcp
> limits. I don't think one can simplify it somehow.
Uhm, no, there is a crapload of b
Hi Johannes,
On Thu, Oct 22, 2015 at 12:21:28AM -0400, Johannes Weiner wrote:
...
> Patch #5 adds accounting and tracking of socket memory to the unified
> hierarchy memory controller, as described above. It uses the existing
> per-cpu charge caches and triggers high limit reclaim asynchroneously.
On Thu, Oct 22, 2015 at 09:45:10PM +0300, Vladimir Davydov wrote:
> Hi Johannes,
>
> On Thu, Oct 22, 2015 at 12:21:28AM -0400, Johannes Weiner wrote:
> ...
> > Patch #5 adds accounting and tracking of socket memory to the unified
> > hierarchy memory controller, as described above. It uses the exi
On Wed, Oct 28, 2015 at 11:58:10AM -0700, Johannes Weiner wrote:
> On Wed, Oct 28, 2015 at 11:20:03AM +0300, Vladimir Davydov wrote:
> > Then you'd better not touch existing tcp limits at all, because they
> > just work, and the logic behind them is very close to that of global tcp
> > limits. I do
On Thu, Oct 29, 2015 at 12:27:47PM +0300, Vladimir Davydov wrote:
> On Wed, Oct 28, 2015 at 11:58:10AM -0700, Johannes Weiner wrote:
> > Having the hard limit as a failsafe (or a minimum for other consumers)
> > is one thing, and certainly something I'm open to for cgroupv2, should
> > we have prob
On Thu, Oct 29, 2015 at 10:52:28AM -0700, Johannes Weiner wrote:
...
> Now, you mentioned that you'd rather see the socket buffers accounted
> at the allocator level, but I looked at the different allocation paths
> and network protocols and I'm not convinced that this makes sense. We
> don't want
Hi,
this is version 2 of the patches to add socket memory accounting to
the unified hierarchy memory controller. Changes from v1 include:
- No accounting overhead unless a dedicated cgroup is created and the
memory controller instructed to track that group's memory footprint.
Distribution ker
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