[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] Ping: [PATCH 0/5] x86: more power-efficient CPU parking
>>> On 01.08.18 at 16:22, wrote: > When putting CPUs to sleep permanently, we should try to put them into > the most power conserving state possible. For now it is unclear whether, > especially in a deep C-state, the P-state also matters, so this series only > arranges for the C-state side of things (plus some cleanup). > > 1: x86/cpuidle: replace a pointless NULL check > 2: x86/idle: re-arrange dead-idle handling > 3: x86/cpuidle: push parked CPUs into deeper sleep states when possible > 4: x86/cpuidle: clean up Cx dumping > 5: x86: place non-parked CPUs into wait-for-SIPI state after offlining So patch 5 is understandably controversial, and I'm explicitly excluding it from the ping. Patch 1 has gone in long ago and patch 4 has been acked. While there was some feedback on 2 (albeit stalled then after my reply), I don't think I've had any substantial feedback on 3 though, yet _they_ are supposed to provide the main improvement here. Patch 5 really was meant to be more optional than I had expressed, hence its placement even after the pure cleanup patch 4. The series has been pending for well over half a year now, yet other than for the indirect call patching series (where it already doesn't feel really well) I don't want to propose simply committing this in the absences of sufficient feedback. Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/xen-devel
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