On Tue, Sep 20, 2016 at 2:50 PM, Neal Cardwell <ncardw...@google.com> wrote:
> On Tue, Sep 20, 2016 at 2:48 PM, Stephen Hemminger
> <step...@networkplumber.org> wrote:
>>
>> On Mon, 19 Sep 2016 23:39:23 -0400
>> Neal Cardwell <ncardw...@google.com> wrote:
>>
>> > +/* INET_DIAG_BBRINFO */
>> > +
>> > +struct tcp_bbr_info {
>> > + /* u64 bw: max-filtered BW (app throughput) estimate in Byte per
>> > sec: */
>> > + __u32 bbr_bw_lo; /* lower 32 bits of bw */
>> > + __u32 bbr_bw_hi; /* upper 32 bits of bw */
>> > + __u32 bbr_min_rtt; /* min-filtered RTT in uSec */
>> > + __u32 bbr_pacing_gain; /* pacing gain shifted left 8 bits */
>> > + __u32 bbr_cwnd_gain; /* cwnd gain shifted left 8 bits */
>> > +};
>> > +
>>
>> I assume there is a change to iproute (ss) to dump this info?
>
> Yes, we have a patch for iproute2 (inet_diag.h and ss.c), which we've
> been using. We'll send that out ASAP.
Here are the patches with proposed iproute2 support to dump this info:
http://patchwork.ozlabs.org/patch/672538/
http://patchwork.ozlabs.org/patch/672539/
http://patchwork.ozlabs.org/patch/672540/
thanks,
neal
