Home
Reading
Searching
Subscribe
Sponsors
Statistics
Posting
Contact
Spam
Lists
Links
About
Hosting
Filtering
Features Download
Marketing
Archives
FAQ
Blog
 
Gmane
From: Glauber Costa <glommer <at> parallels.com>
Subject: [PATCH v5 00/10] per-cgroup tcp memory pressure
Newsgroups: gmane.linux.kernel
Date: Monday 7th November 2011 15:26:25 UTC (over 5 years ago)
Hi all,

This is my new attempt at implementing per-cgroup tcp memory pressure.
I am particularly interested in what the network folks have to comment on
it: my main goal is to achieve the least impact possible in the network
code.

Here's a brief description of my approach:

When only the root cgroup is present, the code should behave the same way
as
before - with the exception of the inclusion of an extra field in struct
sock,
and one in struct proto. All tests are patched out with static branch, and
we
still access addresses directly - the same as we did before.

When a cgroup other than root is created, we patch in the branches, and
account
resources for that cgroup. The variables in the root cgroup are still
updated.
If we were to try to be 100 % coherent with the memcg code, that should
depend
on use_hierarchy. However, I feel that this is a good compromise in terms
of
leaving the network code untouched, and still having a global vision of its
resources. I also do not compute max_usage for the root cgroup, for a
similar
reason.

Please let me know what you think of it.

Glauber Costa (10):
  Basic kernel memory functionality for the Memory Controller
  foundations of per-cgroup memory pressure controlling.
  socket: initial cgroup code.
  per-cgroup tcp buffers control
  per-netns ipv4 sysctl_tcp_mem
  tcp buffer limitation: per-cgroup limit
  Display current tcp memory allocation in kmem cgroup
  Display current tcp memory allocation in kmem cgroup
  Display current tcp memory allocation in kmem cgroup
  Disable task moving when using kernel memory accounting

 Documentation/cgroups/memory.txt |   38 +++-
 include/linux/memcontrol.h       |   40 ++++
 include/net/netns/ipv4.h         |    1 +
 include/net/sock.h               |  231 +++++++++++++++++++-
 include/net/tcp.h                |   22 ++-
 include/net/transp_v6.h          |    1 +
 init/Kconfig                     |   14 ++
 mm/memcontrol.c                  |  442
++++++++++++++++++++++++++++++++++++-
 net/core/sock.c                  |  121 ++++++++---
 net/ipv4/af_inet.c               |    5 +
 net/ipv4/proc.c                  |    7 +-
 net/ipv4/sysctl_net_ipv4.c       |   65 +++++-
 net/ipv4/tcp.c                   |   11 +-
 net/ipv4/tcp_input.c             |   12 +-
 net/ipv4/tcp_ipv4.c              |   17 ++-
 net/ipv4/tcp_output.c            |    2 +-
 net/ipv4/tcp_timer.c             |    2 +-
 net/ipv6/af_inet6.c              |    5 +
 net/ipv6/tcp_ipv6.c              |   13 +-
 19 files changed, 962 insertions(+), 87 deletions(-)

-- 
1.7.6.4

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to [email protected]  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email:  email@kvack.org 
 
CD: 3ms