Messages in this thread | | | Subject | Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters | From | Alan Cox <> | Date | Sat, 26 Aug 2006 00:12:52 +0100 |
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Ar Gwe, 2006-08-25 am 15:23 -0700, ysgrifennodd Chandra Seetharaman: > > Bean counters can exist with no tasks, and the CKRM people have been > > corrected repeatedly on this point. > > Hmm... from what I understand from the code, when the last resource in > the beancounter is dropped, the beancounter is destroyed. Which to me > means that when there are no tasks in a beancounter it will be > destroyed. (I just tested the code and verified that the beancounter is > destroyed when the task dies).
If a task created resource remains then the beancounter remains until the resources are destroyed, so it may exit well after the last task (eg an object handed to another process with a different luid is stil charged to us)
> Let me reword the requirement: beancounter/resource group should _not_ > be destroyed implicitly. It should be destroyed only when requested by > the user/sysadmin. In other words, we need a create_luid() and > destroy_luid().
So that you can preserve the limits on the resource group ? That also makes sense if you are trying to do long term resource management.
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