Re: [PATCH v2 0/4] powernv: cpuidle: Redesign idle states management

2014-11-25 Thread Preeti U Murthy
Hi, I ran hackbench to evaluate this patchset and found good improvements in the results. I modified hackbench to take in a 'loops' parameter along with num_groups which ensures that the test runs long enough to observe and debug issues. The idea was to find out how latency sensitive workloads ca

[PATCH v2 0/4] powernv: cpuidle: Redesign idle states management

2014-11-25 Thread Shreyas B. Prabhu
Deep idle states like sleep and winkle are per core idle states. A core enters these states only when all the threads enter either the particular idle state or a deeper one. There are tasks like fastsleep hardware bug workaround and hypervisor core state save which have to be done only by the last