Cake - FQ_codel the next generation
 help / color / mirror / Atom feed
From: Dave Taht <dave.taht@gmail.com>
To: Cake List <cake@lists.bufferbloat.net>
Subject: Re: [Cake] a couple quick test runs of the v17+1 patchset
Date: Wed, 30 May 2018 13:53:44 -0700	[thread overview]
Message-ID: <CAA93jw6o42Nn90qb1skPBaGcQ+PiVw0K55JdfxK6sZ9wDiGfqQ@mail.gmail.com> (raw)
In-Reply-To: <CAA93jw4VYWacQLJxSmMgb6U9E5gerYM+ZMj8kLbUgtDeKr2aow@mail.gmail.com>

And I was being an idiot. Using the ethernet keyword to account for
the framing overhead AND shaping to 1Gbit,
I got local latency results twice as good as what I can get from
sch_fq, no muss, no fuss, and no loss of bandwidth vs the unshaped
mode.

Hardware flow control will still defeat us, but....

Summary of rrul test run 'v17-cake-1gbit-ethernet' (at 2018-05-30
20:48:14.853980):

                             avg       median          # data pts
 Ping (ms) ICMP   :         1.74         1.88 ms              347
 Ping (ms) UDP BE :       879.31         2.21 ms              349
 Ping (ms) UDP BK :       853.93         2.25 ms              349
 Ping (ms) UDP EF :       879.93         2.21 ms              349
 Ping (ms) avg    :       653.73         2.13 ms              350
 TCP download BE  :       230.61       230.58 Mbits/s         299
 TCP download BK  :       230.81       230.70 Mbits/s         299
 TCP download CS5 :       230.61       230.66 Mbits/s         299
 TCP download EF  :       230.21       230.58 Mbits/s         299
 TCP download avg :       230.56       230.62 Mbits/s         300
 TCP download sum :       922.24       922.48 Mbits/s         300
 TCP totals       :      1858.68      1859.31 Mbits/s         300
 TCP upload BE    :       322.47       322.56 Mbits/s         290
 TCP upload BK    :        57.57        57.47 Mbits/s         271
 TCP upload CS5   :       322.39       322.49 Mbits/s         276
 TCP upload EF    :       234.01       234.18 Mbits/s         281
 TCP upload avg   :       234.11       234.18 Mbits/s         300
 TCP upload sum   :       936.44       936.72 Mbits/s         300

but the capacity estimate is still 970?

qdisc cake 8017: root refcnt 2 bandwidth 1Gbit diffserv3
triple-isolate split-gso rtt 100.0ms noatm overhead 38 mpu 84
 Sent 51504294511 bytes 37724591 pkt (dropped 6, overlimits 64958695
requeues 12)
 backlog 0b 0p requeues 12
 memory used: 1053008b of 15140Kb
 capacity estimate: 970Mbit
 min/max network layer size:           28 /    1500
 min/max overhead-adjusted size:       84 /    1538
 average network hdr offset:           14

                   Bulk  Best Effort        Voice
  thresh      62500Kbit        1Gbit      250Mbit
  target          5.0ms        5.0ms        5.0ms
  interval      100.0ms      100.0ms      100.0ms
  pk_delay          5us          5us          6us
  av_delay          3us          2us          2us
  sp_delay          2us          1us          1us
  backlog            0b           0b           0b
  pkts          3164050     25030267      9530280
  bytes      3227519915  35396974782  12879808898
  way_inds            0            8            0
  way_miss           21          366           25
  way_cols            0            0            0
  drops               5            0            1
  marks               0            0            0
  ack_drop            0            0            0
  sp_flows            1            3            0
  bk_flows            0            1            1
  un_flows            0            0            0
  max_len         68130        68130        68130

      reply	other threads:[~2018-05-30 20:53 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-30 20:39 Dave Taht
2018-05-30 20:53 ` Dave Taht [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://lists.bufferbloat.net/postorius/lists/cake.lists.bufferbloat.net/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CAA93jw6o42Nn90qb1skPBaGcQ+PiVw0K55JdfxK6sZ9wDiGfqQ@mail.gmail.com \
    --to=dave.taht@gmail.com \
    --cc=cake@lists.bufferbloat.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox