Chandra Seetharaman wrote: > On Thu, 2006-09-07 at 11:29 +0400, Pavel Emelianov wrote: > <snip> > > >>>> BUT: I remind you the talks at OKS/OLS and in previous UBC discussions. >>>> It was noted that having a separate interfaces for CPU, I/O bandwidth >>>> >>>> >>> But, it will be lot simpler for the user to configure/use if they are >>> together. We should discuss this also. >>> >>> >> IMHO such unification may only imply that one syscall is used to pass >> configuration info into kernel. >> Each controller has specific configurating parameters different from the >> other ones. E.g. CPU controller must assign a "weight" to each group to >> share CPU time accordingly, but what is a "weight" for memory controller? >> IO may operate on "bandwidth" and it's not clear what is a "bandwidth" in >> Kb/sec for CPU controller and so on. >> > > CKRM/RG handles this by eliminating the units from the interface and > abstracting them to be "shares". Each resource controller converts the > shares to its own units and handles properly. > That's what I'm talking about - common syscall/ioct/etc and each controller parses its input itself. That's OK for us.
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