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Re: [PATCH v8 6/9] tcp buffer limitation: per-cgroup limit [message #44459 is a reply to message #44393]

Fri, 09 December 2011 01:55

KAMEZAWA Hiroyuki
Messages: 463
Registered: September 2006

Senior Member

On Mon, 5 Dec 2011 19:35:00 -0200
Glauber Costa <glommer@parallels.com> wrote:

> This patch uses the "tcp.limit_in_bytes" field of the kmem_cgroup to
> effectively control the amount of kernel memory pinned by a cgroup.
>
> This value is ignored in the root cgroup, and in all others,
> caps the value specified by the admin in the net namespaces'
> view of tcp_sysctl_mem.
>
> If namespaces are being used, the admin is allowed to set a
> value bigger than cgroup's maximum, the same way it is allowed
> to set pretty much unlimited values in a real box.
>
> Signed-off-by: Glauber Costa <glommer@parallels.com>
> CC: David S. Miller <davem@davemloft.net>
> CC: Hiroyouki Kamezawa <kamezawa.hiroyu@jp.fujitsu.com>
> CC: Eric W. Biederman <ebiederm@xmission.com>

Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>

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[Message index]

		[PATCH v8 0/9] per-cgroup tcp memory pressure controls By: Glauber Costa on Mon, 05 December 2011 21:34
		[PATCH v8 2/9] foundations of per-cgroup memory pressure controlling. By: Glauber Costa on Mon, 05 December 2011 21:34
		Re: [PATCH v8 2/9] foundations of per-cgroup memory pressure controlling. By: KAMEZAWA Hiroyuki on Fri, 09 December 2011 01:24
		Re: [PATCH v8 2/9] foundations of per-cgroup memory pressure controlling. By: Glauber Costa on Fri, 09 December 2011 12:41
		[PATCH v8 1/9] Basic kernel memory functionality for the Memory Controller By: Glauber Costa on Mon, 05 December 2011 21:34
		Re: [PATCH v8 1/9] Basic kernel memory functionality for the Memory Controller By: KAMEZAWA Hiroyuki on Fri, 09 December 2011 01:21
		Re: [PATCH v8 1/9] Basic kernel memory functionality for the Memory Controller By: Glauber Costa on Fri, 09 December 2011 12:40
		Re: [PATCH v8 1/9] Basic kernel memory functionality for the Memory Controller By: Glauber Costa on Fri, 09 December 2011 14:37
		Re: [PATCH v8 1/9] Basic kernel memory functionality for the Memory Controller By: KAMEZAWA Hiroyuki on Mon, 12 December 2011 00:34
		RE: [PATCH v8 1/9] Basic kernel memory functionality for the Memory Controller By: David Laight on Fri, 09 December 2011 14:44
		Re: [PATCH v8 1/9] Basic kernel memory functionality for the Memory Controller By: Glauber Costa on Fri, 09 December 2011 14:48
		[PATCH v8 3/9] socket: initial cgroup code. By: Glauber Costa on Mon, 05 December 2011 21:34
		Re: [PATCH v8 3/9] socket: initial cgroup code. By: KAMEZAWA Hiroyuki on Fri, 09 December 2011 01:49
		Re: [PATCH v8 3/9] socket: initial cgroup code. By: KAMEZAWA Hiroyuki on Fri, 09 December 2011 02:05
		Re: [PATCH v8 3/9] socket: initial cgroup code. By: Glauber Costa on Fri, 09 December 2011 12:43
		Re: [PATCH v8 3/9] socket: initial cgroup code. By: KAMEZAWA Hiroyuki on Mon, 12 December 2011 00:33
		[PATCH v8 5/9] per-netns ipv4 sysctl_tcp_mem By: Glauber Costa on Mon, 05 December 2011 21:34
		Re: [PATCH v8 5/9] per-netns ipv4 sysctl_tcp_mem By: KAMEZAWA Hiroyuki on Fri, 09 December 2011 01:54
		[PATCH v8 6/9] tcp buffer limitation: per-cgroup limit By: Glauber Costa on Mon, 05 December 2011 21:35
		Re: [PATCH v8 6/9] tcp buffer limitation: per-cgroup limit By: KAMEZAWA Hiroyuki on Fri, 09 December 2011 01:55
		[PATCH v8 7/9] Display current tcp memory allocation in kmem cgroup By: Glauber Costa on Mon, 05 December 2011 21:35
		Re: [PATCH v8 7/9] Display current tcp memory allocation in kmem cgroup By: KAMEZAWA Hiroyuki on Fri, 09 December 2011 01:56
		[PATCH v8 8/9] Display current tcp failcnt in kmem cgroup By: Glauber Costa on Mon, 05 December 2011 21:35
		[PATCH v8 9/9] Display maximum tcp memory allocation in kmem cgroup By: Glauber Costa on Mon, 05 December 2011 21:35
		Re: [PATCH v8 9/9] Display maximum tcp memory allocation in kmem cgroup By: KAMEZAWA Hiroyuki on Fri, 09 December 2011 01:57
		[PATCH v8 4/9] tcp memory pressure controls By: Glauber Costa on Mon, 05 December 2011 21:34
		Re: [PATCH v8 4/9] tcp memory pressure controls By: KAMEZAWA Hiroyuki on Fri, 09 December 2011 01:51
		Re: [PATCH v8 0/9] per-cgroup tcp memory pressure controls By: Glauber Costa on Wed, 07 December 2011 11:06
		Re: [PATCH v8 0/9] per-cgroup tcp memory pressure controls By: KAMEZAWA Hiroyuki on Fri, 09 December 2011 01:04

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