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Message-ID: <6599ad830906050302v70c54e7cu89a52d57f9fe72e6@mail.gmail.com> Date: Fri, 5 Jun 2009 03:02:46 -0700 From: Paul Menage <menage@...gle.com> To: balbir@...ux.vnet.ibm.com Cc: bharata@...ux.vnet.ibm.com, linux-kernel@...r.kernel.org, Dhaval Giani <dhaval@...ux.vnet.ibm.com>, Vaidyanathan Srinivasan <svaidy@...ux.vnet.ibm.com>, Gautham R Shenoy <ego@...ibm.com>, Srivatsa Vaddagiri <vatsa@...ibm.com>, Ingo Molnar <mingo@...e.hu>, Peter Zijlstra <a.p.zijlstra@...llo.nl>, Pavel Emelyanov <xemul@...nvz.org>, Avi Kivity <avi@...hat.com>, kvm@...r.kernel.org, Linux Containers <containers@...ts.linux-foundation.org>, Herbert Poetzl <herbert@...hfloor.at> Subject: Re: [RFC] CPU hard limits On Fri, Jun 5, 2009 at 2:55 AM, Balbir Singh<balbir@...ux.vnet.ibm.com> wrote: > > What about applications running as root, that can create their own > groups? How about multiple instances of the same application started? > Do applications need to know that creating a group will hurt > guarantees provided to others? Yes, of course. If you're handing out guarantees, but other users can/will create cgroups with whatever parameters they like and won't respect the guarantees that you've made, then those guarantees are worthless. How do hard limits help in that situation? Paul -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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