Messages in this thread | | | Date | Wed, 01 Nov 2006 11:01:31 +0300 | From | Pavel Emelianov <> | Subject | Re: [ckrm-tech] [RFC] Resource Management - Infrastructure choices |
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[snip]
>> 2. Having configfs as the only interface doesn't alow >> people having resource controll facility w/o configfs. >> Resource controller must not depend on any "feature". > > One flexibility configfs (and any fs-based interface) offers is, as Matt > had pointed out sometime back, the ability to delage management of a > sub-tree to a particular user (without requiring root permission). > > For ex: > > / > | > ----------------- > | | > vatsa (70%) linux (20%) > | > ---------------------------------- > | | | > browser (10%) compile (50%) editor (10%) > > In this, group 'vatsa' has been alloted 70% share of cpu. Also user > 'vatsa' has been given permissions to manage this share as he wants. If > the cpu controller supports hierarchy, user 'vatsa' can create further > sub-groups (browser, compile ..etc) -without- requiring root access.
I can do the same using bcctl tool and sudo :)
> Also it is convenient to manipulate resource hierarchy/parameters thr a > shell-script if it is fs-based. > >> 3. Configfs may be easily implemented later as an additional >> interface. I propose the following solution: > > Ideally we should have one interface - either syscall or configfs - and > not both.
Agree.
> Assuming your requirement of auto-deleting objects in configfs can be > met thr' something similar to cpuset's notify_on_release, what other > killer problem do you think configfs will pose? > > >>> - Should we have different groupings for different resources? >> This breaks the idea of groups isolation. > > Sorry dont get you here. Are you saying we should support different > grouping for different controllers?
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