Re: [PATCH 0/2] RFC: readd fair sleepers for server systems

[Peter Zijlstra]

On Wed, 2012-05-23 at 17:28 +0200, Christian Ehrhardt wrote:
> We don't have any code for CONFIG_PARAVIRT and its childs yet, so I need 
> to look further into it. 

Yeah, screw CONFIG_PARAVIRT :-) Its just that the code that deals with
high res steal time is only used by them. So ideally you'd extract the
relevant bits from under CONFIG_PARAVIRT and use them.

So its that one block in update_rq_clock_task() (or both if you also
have high res irq accounting) and then you need to provide
paravirt_steal_clock(int cpu) which returns the steal time of that cpu
in nano-seconds granularity. Which I'm assuming s390 has available
someplace.

+- some renames to remove the paravirt_ part of names.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/