Re: [Cake] codel in ebpf?

On Thu, Aug 2, 2018 at 1:04 PM Toke Høiland-Jørgensen wrote: > > Dave Taht writes: > > > On Wed, Aug 1, 2018 at 10:25 AM Dave Taht wrote: > >> > >> I wonder if ebpf has opcode space for an invsqrt? > > > > bpf_ktime_get_ns() exists... > > > > one thing that I don't know if bpf can do is

Re: [Cake] Cake Digest, Vol 41, Issue 3

Sent from my iPhone > On Aug 1, 2018, at 3:48 PM, cake-requ...@lists.bufferbloat.net wrote: > > Send Cake mailing list submissions to >cake@lists.bufferbloat.net > > To subscribe or unsubscribe via the World Wide Web, visit >https://lists.bufferbloat.net/listinfo/cake > or, via email,

Re: [Cake] codel in ebpf?

Dave Taht writes: > On Wed, Aug 1, 2018 at 10:25 AM Dave Taht wrote: >> >> I wonder if ebpf has opcode space for an invsqrt? > > bpf_ktime_get_ns() exists... > > one thing that I don't know if bpf can do is read/write the > skb->tstamp field. The plan would be to rigorously write it (if not >