On (21/09/02 12:11), Sergey Senozhatsky wrote: > grow_halt_poll_ns() ignores values between 0 and > halt_poll_ns_grow_start (10000 by default). However, > when we shrink halt_poll_ns we may fall way below > halt_poll_ns_grow_start and endup with halt_poll_ns > values that don't make a lot of sense: like 1 or 9, > or 19. > > VCPU1 trace (halt_poll_ns_shrink equals 2): > > VCPU1 grow 10000 > VCPU1 shrink 5000 > VCPU1 shrink 2500 > VCPU1 shrink 1250 > VCPU1 shrink 625 > VCPU1 shrink 312 > VCPU1 shrink 156 > VCPU1 shrink 78 > VCPU1 shrink 39 > VCPU1 shrink 19 > VCPU1 shrink 9 > VCPU1 shrink 4 > > Mirror what grow_halt_poll_ns() does and set halt_poll_ns > to 0 as soon as new shrink-ed halt_poll_ns value falls > below halt_poll_ns_grow_start. Gentle ping. -ss