On Tue, May 19, 2020 at 7:57 PM Cong Wang <xiyou.wangc...@gmail.com> wrote: > > On Tue, May 19, 2020 at 1:04 AM Václav Zindulka > <vaclav.zindu...@tlapnet.cz> wrote: > > > > > > Let me think how to fix this properly, I have some ideas and will provide > > > you some patch(es) to test soon. > > > > Sure, I'll wait. I have plenty of time now with the main problem fixed :-) > > Can you help to test the patches below? > https://github.com/congwang/linux/commits/qdisc_reset2 > > I removed the last patch you previously tested and added two > more patches on top. These two patches should get rid of most > of the unnecessary resets. I tested them with veth pair with 8 TX > queues, but I don't have any real physical NIC to test. > > Thanks.
I've tested it and I have to admit that your Kung-fu is even better than mine :-D My large ruleset with over 13k qdiscs defined got from 22s to 520ms. I've tested downtime of interface during deletion of root qdisc and it corresponds to the time I measured so it is great. /usr/bin/time -p tc qdisc del dev enp1s0f0np0 root real 0.52 user 0.00 sys 0.52 I've even added my patch for only active queues but it didn't make any difference from your awesome patch :-) Thank you very much. You helped me really a lot.
