On 4/16/19 2:59 PM, Yang Shi wrote: > On 4/16/19 2:22 PM, Dave Hansen wrote: >> Keith Busch had a set of patches to let you specify the demotion order >> via sysfs for fun. The rules we came up with were: >> 1. Pages keep no history of where they have been >> 2. Each node can only demote to one other node > > Does this mean any remote node? Or just DRAM to PMEM, but remote PMEM > might be ok? In Keith's code, I don't think we differentiated. We let any node demote to any other node you want, as long as it follows the cycle rule.
