Re: [PATCH v4 net-next 16/16] tcp_bbr: add BBR congestion control
flat view
From: Neal Cardwell <ncardwell@google.com>
Date: 2016-09-21 02:58:14
On Tue, Sep 20, 2016 at 2:50 PM, Neal Cardwell [off-list ref] wrote:
On Tue, Sep 20, 2016 at 2:48 PM, Stephen Hemminger [off-list ref] wrote:quoted
On Mon, 19 Sep 2016 23:39:23 -0400 Neal Cardwell [off-list ref] wrote:quoted
+/* 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