On Mon, 30 Jan 2023 10:25:34 +0100 Paolo Abeni wrote: > Let me try for a moment to revive this old thread. > > Tha series proposed a new sysctl know to implement a global/default rps > mask applying to all the network devices as a way to simplify some RT > setups. It has been rejected as the required task is doable in user- > space. > > Currently the orchestration infrastructure does that, setting the per > device, per queue rps mask and CPU isolation. > > The above leads to a side problem: when there are lot of netns/devices > with several queues, even a reasonably optimized user-space solution > takes a relevant amount of time to traverse the relevant sysfs dirs and > do I/O on them. Overall the additional time required is very > measurable, easily ranging in seconds. > > The default_rps_mask would basically kill that overhead. > > Is the above a suitable use case? Alright, thanks for trying the user space fix.
