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Re: [PATCH v2 02/13] memcg: Kernel memory accounting infrastructure. [message #45537 is a reply to message #45532]

Thu, 15 March 2012 11:07

Glauber Costa
Messages: 916
Registered: October 2011

Senior Member

On 03/15/2012 04:48 AM, KAMEZAWA Hiroyuki wrote:
>>> - What happens when a new cgroup created ?
>> >
>> > mem_cgroup_create() is called =)
>> > Heh, jokes apart, I don't really follow here. What exactly do you mean?
>> > There shouldn't be anything extremely out of the ordinary.
>> >
>
> Sorry, too short words.
>
> Assume a cgroup with
> cgroup.memory.limit_in_bytes=1G
> cgroup.memory.kmem.limit_in_bytes=400M
>
> When a child cgroup is created, what should be the default values.
> 'unlimited' as current implementation ?
> Hmm..maybe yes.

I think so, yes. I see no reason to come up with any default values
in memcg. Yes, your allocations can fail due to your parent limits.
But since I never heard of any machine with
9223372036854775807 bytes of memory, that is true even for the root memcg =)

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[Message index]

		Re: [PATCH v2 02/13] memcg: Kernel memory accounting infrastructure. By: Glauber Costa on Sun, 11 March 2012 08:12
		Re: [PATCH v2 02/13] memcg: Kernel memory accounting infrastructure. By: KAMEZAWA Hiroyuki on Tue, 13 March 2012 06:24
		Re: [PATCH v2 02/13] memcg: Kernel memory accounting infrastructure. By: Glauber Costa on Tue, 13 March 2012 10:37
		Re: [PATCH v2 02/13] memcg: Kernel memory accounting infrastructure. By: Greg Thelen on Tue, 13 March 2012 17:00
		Re: [PATCH v2 02/13] memcg: Kernel memory accounting infrastructure. By: Glauber Costa on Tue, 13 March 2012 17:31
		Re: [PATCH v2 02/13] memcg: Kernel memory accounting infrastructure. By: KAMEZAWA Hiroyuki on Wed, 14 March 2012 00:15
		Re: [PATCH v2 02/13] memcg: Kernel memory accounting infrastructure. By: Glauber Costa on Wed, 14 March 2012 12:29
		Re: [PATCH v2 02/13] memcg: Kernel memory accounting infrastructure. By: KAMEZAWA Hiroyuki on Thu, 15 March 2012 00:48
		Re: [PATCH v2 02/13] memcg: Kernel memory accounting infrastructure. By: Glauber Costa on Thu, 15 March 2012 11:07
		Re: [PATCH v2 02/13] memcg: Kernel memory accounting infrastructure. By: Peter Zijlstra on Thu, 15 March 2012 11:13
		Re: [PATCH v2 02/13] memcg: Kernel memory accounting infrastructure. By: Glauber Costa on Thu, 15 March 2012 11:21

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