Messages in this thread | | | Subject | Re: [ckrm-tech] [RFC][PATCH] UBC: user resource beancounters | From | Matt Helsley <> | Date | Fri, 18 Aug 2006 15:55:28 -0700 |
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On Fri, 2006-08-18 at 11:53 -0700, Chandra Seetharaman wrote: > On Fri, 2006-08-18 at 14:36 +0400, Kirill Korotaev wrote:
<snip>
> > 2. as was discussed with a number of people on summit we agreed that > > it maybe more flexible to not merge all resource types into one set. > > CPU scheduler is usefull by itself w/o memory management. > > the same for disk I/O bandwidht which is controlled in CFQ by > > a separate system call. > > > > it is also more logical to have them separate since they > > operate in different terms. For example, for CPU it is > > shares which are relative units, while for memory it is > > absolute units in bytes. > > We don't have to tie the units with the number. We can leave it to be > sorted out between the user and the controller writer.
Yes. The user specifies a ratio of the parent group's resources and the controller maps that unitless number into appropriate units for the resource.
> Current implementation of resource groups does that.
IMHO this also better facilitates hotplug addition/removal of resources, arbitrary levels of groups, and containers.
<snip>
Cheers, -Matt Helsley
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