| Re: [PATCH v7 0/8] Request for inclusion: tcp memory buffers [message #43782 is a reply to message #43769] |
Fri, 14 October 2011 02:55   |
Valdis.Kletnieks
Messages: 5
Registered: September 2006
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Junior Member |
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On Fri, 14 Oct 2011 00:05:58 +0400, Glauber Costa said:
> On 10/14/2011 12:00 AM, David Miller wrote:
> > Make this evaluate into exactly the same exact code stream we have
> > now when the memory cgroup feature is not in use, which will be the
> > majority of users.
>
> What exactly do you mean by "not in use" ? Not compiled in or not
> actively being exercised ? If you mean the later, I appreciate tips on
> how to achieve it.
>
> Also, I kind of dispute the affirmation that !cgroup will encompass
> the majority of users, since cgroups is being enabled by default by
> most vendors. All systemd based systems use it extensively, for instance.
Yes, systemd requires a kernel that includes cgroups. However, systemd does
*not* require the memory cgroup feature. As a practical matter, if your patch
doesn't generate equivalent code for the "have cgroups, but no memory cgroup"
situation, it's a non-starter.
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