Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)

Pavel Emelianov wrote:

I don't understand your idea. Limit does _not_ imply anything - it's
just a limit.
You may limit anything to anyone w/o bothering the consequences.
Guarantee implies that the resource you guarantee will be available and
this "will be" is something not that easy.

So I repeat my question - how can you be sure that these X megabytes you
guarantee to some group won't be used by others so that you won't be able
to reclaim them?

May be we can treat a guarantee as a soft guarantee. A soft
guarantee would imply that when a group needs its guaranteed resources, the
system makes its best effort to make it available.

In soft guarantees, resources not actively used by a group can be shared with
other groups.

Hard guarantees would probably require reserving the resource in advance and
sharing of the resources not used, with other groups, might not be possible.

Comments?

--

	Balbir Singh,
	Linux Technology Center,
	IBM Software Labs
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

---

• Follow-Ups:
  • Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)
    • From: Pavel Emelianov <[email protected]>

• References:
  • [PATCH] BC: resource beancounters (v4) (added user memory)
    • From: Kirill Korotaev <[email protected]>
  • Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)
    • From: Balbir Singh <[email protected]>
  • Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)
    • From: Kirill Korotaev <[email protected]>
  • Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)
    • From: Balbir Singh <[email protected]>
  • Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)
    • From: Chandra Seetharaman <[email protected]>
  • Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)
    • From: Pavel Emelianov <[email protected]>
  • Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)
    • From: Dave Hansen <[email protected]>
  • Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)
    • From: Balbir Singh <[email protected]>
  • Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)
    • From: Pavel Emelianov <[email protected]>
  • Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)
    • From: Balbir Singh <[email protected]>
  • Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)
    • From: Pavel Emelianov <[email protected]>
  • Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)
    • From: Chandra Seetharaman <[email protected]>
  • Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)
    • From: Pavel Emelianov <[email protected]>
  • Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)
    • From: Chandra Seetharaman <[email protected]>
  • Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)
    • From: Pavel Emelianov <[email protected]>
  • Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)
    • From: Chandra Seetharaman <[email protected]>
  • Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)
    • From: Pavel Emelianov <[email protected]>

• Prev by Date: Re: [PATCH 10/11] LTTng-core 0.5.108 : relayfs
• Next by Date: PowerOP summary
• Previous by thread: Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)
• Next by thread: Re: [ckrm-tech] [PATCH] BC: resource beancounters (v4) (added user memory)
• Index(es):
  • Date
  • Thread

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]