Keqian Zhu <zhukeqi...@huawei.com> wrote: > At the tail stage of throttle, VM is very sensitive to > CPU percentage. We just throttle 30% of remaining CPU > when throttle is more than 80 percentage.
Why? If we really think that this is better that current approarch, just do this _always_. And throothre 30% of remaining CPU. So we go: 30% 30% + 0.3(70%) ... Or anything else. My experience is: - you really need to go to very high throothle to make migration happens (more than 70% or so usually). - The way that we throotle is not completely exact. > This doesn't conflict with cpu_throttle_increment. > > This may make migration time longer, and is disabled > by default. What do you think? I think that it is better to change method and improve documentation that yet adding another parameter. Later, Juan.
