> If these applications are aware they are heavy users (of FP, VMX, VSX) > can we not use a sysctl()? Doing so wouldn't be that difficult. > > I think trying to do something based on a runtime heuristic sounds a > bit iffy.
Another option might be simply to say that if an app has used FP, VMX or VSX -once-, then it's likely to do it again and just keep re-enabling it :-) I'm serious here, do we know that many cases where these things are used seldomly once in a while ? An if we do, maybe then a simple counter in the task struct... if the app re-enables it more than a few consecutive switches, then make it stick. I have the feeling that would work out reasonably well. Cheers, Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
