netdev - Re: [PATCH iproute2] tc: fq: add horizon attributes

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Date:   Sun, 6 Jun 2021 20:55:11 -0600
From:   David Ahern <dsahern@...il.com>
To:     Eric Dumazet <eric.dumazet@...il.com>,
        Stephen Hemminger <stephen@...workplumber.org>
Cc:     netdev <netdev@...r.kernel.org>, Eric Dumazet <edumazet@...gle.com>
Subject: Re: [PATCH iproute2] tc: fq: add horizon attributes

On 6/4/21 10:00 AM, Eric Dumazet wrote:
> From: Eric Dumazet <edumazet@...gle.com>
> 
> Commit 39d010504e6b ("net_sched: sch_fq: add horizon attribute")
> added kernel support for horizon attributes in linux-5.8
> 
> $ tc -s -d qd sh dev wlp2s0
> qdisc fq 8006: root refcnt 2 limit 10000p flow_limit 100p buckets 1024 orphan_mask 1023 quantum 3028b initial_quantum 15140b low_rate_threshold 550Kbit refill_delay 40ms timer_slack 10us horizon 10s horizon_drop
>  Sent 690924 bytes 3234 pkt (dropped 0, overlimits 0 requeues 0)
>  backlog 0b 0p requeues 0
>   flows 112 (inactive 104 throttled 0)
>   gc 0 highprio 0 throttled 2 latency 8.25us
> 
> $ tc qd change dev wlp2s0 root fq horizon 500ms horizon_cap
> 
> $ tc -s -d qd sh dev wlp2s0
> qdisc fq 8006: root refcnt 2 limit 10000p flow_limit 100p buckets 1024 orphan_mask 1023 quantum 3028b initial_quantum 15140b low_rate_threshold 550Kbit refill_delay 40ms timer_slack 10us horizon 500ms horizon_cap
>  Sent 831220 bytes 3844 pkt (dropped 0, overlimits 0 requeues 0)
>  backlog 0b 0p requeues 0
>   flows 122 (inactive 120 throttled 0)
>   gc 0 highprio 0 throttled 2 latency 8.25us
> 
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> ---
>  tc/q_fq.c | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++-----
>  1 file changed, 60 insertions(+), 6 deletions(-)
> 

applied to iproute2-next. Thanks,