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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 10/20/25 16:32, Sean Christopherson wrote: > : Till the hint from underlying hypervisor arrives, another idea is to > : approximate the hint from steal time. I think this is the first thing to look at. Perhaps single_task_running() can be exposed in the x86 steal time data structure, and in fact even in the rseq data for non-VM usecases? This is not specific to VMs and I'd like the steal time implementation to follow the footsteps of rseq rather than the opposite. Paolo