[Bloat] [Codel] fq_"codel" in apple's gear
Dave Taht
dave.taht at gmail.com
Sat Oct 14 15:46:54 EDT 2023
thank you! A packet capture, however, would be more revealing...
On Sat, Oct 14, 2023 at 12:44 PM Sebastian Moeller <moeller0 at gmx.de> wrote:
>
> Hi Dave,
>
>
> > On Oct 14, 2023, at 21:01, Dave Taht <dave.taht at gmail.com> wrote:
> >
> > netstat -I en0 -qq
>
> Here is a bit of output from macosx monterey 12.7 (on intel hardware). I know this is not really recent, ut it is the most recent I have available...
>
> This is on an realtek based USB3 ethernet dongle that used to support 1 Gbps, but at from macosx update on it is stuck on 100Mbps FastEthernet...
>
>
> Here is the output after a flent test:
>
> Out of my "--test-parameter markings=CS0,CS1,CS2,CS3,CS4,CS5,CS6,CS7" it seems only CS1 was honored and put into BK the rest all ended up in BE...
> I have zero clue what macos uses to steer packets into the different classes, might be DSCP alone, but then at least using some more exotic ones than boring CS6/CS7
> No idea what CTL is, the average packet size mist be around 67 bytes...
>
>
> macbook:CAKE-autorate user$ netstat -I en3 -qq
> en3:
> [ sched: FQ_CODEL qlength: 0/128 ]
> [ pkts: 522515 bytes: 334464372 dropped pkts: 0 bytes: 0 ]
> =====================================================
> [ pri: CTL (0) srv_cl: 0x480190 quantum: 605 drr_max: 8 ]
> [ queued pkts: 0 bytes: 0 ]
> [ dequeued pkts: 292918 bytes: 19787064 ]
> [ budget: 0 target qdelay: 10.00 msec update interval:100.00 msec ]
> [ flow control: 0 feedback: 0 stalls: 0 failed: 0 overwhelming: 0 ]
> [ drop overflow: 0 early: 0 memfail: 0 duprexmt:0 ]
> [ flows total: 0 new: 0 old: 0 ]
> [ throttle on: 0 off: 0 drop: 0 ]
> [ compressible pkts: 0 compressed pkts: 0]
> =====================================================
> [ pri: VO (1) srv_cl: 0x400180 quantum: 605 drr_max: 8 ]
> [ queued pkts: 0 bytes: 0 ]
> [ dequeued pkts: 0 bytes: 0 ]
> [ budget: 0 target qdelay: 10.00 msec update interval:100.00 msec ]
> [ flow control: 0 feedback: 0 stalls: 0 failed: 0 overwhelming: 0 ]
> [ drop overflow: 0 early: 0 memfail: 0 duprexmt:0 ]
> [ flows total: 0 new: 0 old: 0 ]
> [ throttle on: 0 off: 0 drop: 0 ]
> [ compressible pkts: 0 compressed pkts: 0]
> =====================================================
> [ pri: VI (2) srv_cl: 0x380100 quantum: 3028 drr_max: 6 ]
> [ queued pkts: 0 bytes: 0 ]
> [ dequeued pkts: 0 bytes: 0 ]
> [ budget: 0 target qdelay: 10.00 msec update interval:100.00 msec ]
> [ flow control: 0 feedback: 0 stalls: 0 failed: 0 overwhelming: 0 ]
> [ drop overflow: 0 early: 0 memfail: 0 duprexmt:0 ]
> [ flows total: 0 new: 0 old: 0 ]
> [ throttle on: 0 off: 0 drop: 0 ]
> [ compressible pkts: 0 compressed pkts: 0]
> =====================================================
> [ pri: RV (3) srv_cl: 0x300110 quantum: 3028 drr_max: 6 ]
> [ queued pkts: 0 bytes: 0 ]
> [ dequeued pkts: 0 bytes: 0 ]
> [ budget: 0 target qdelay: 10.00 msec update interval:100.00 msec ]
> [ flow control: 0 feedback: 0 stalls: 0 failed: 0 overwhelming: 0 ]
> [ drop overflow: 0 early: 0 memfail: 0 duprexmt:0 ]
> [ flows total: 0 new: 0 old: 0 ]
> [ throttle on: 0 off: 0 drop: 0 ]
> [ compressible pkts: 0 compressed pkts: 0]
> =====================================================
> [ pri: AV (4) srv_cl: 0x280120 quantum: 3028 drr_max: 6 ]
> [ queued pkts: 0 bytes: 0 ]
> [ dequeued pkts: 0 bytes: 0 ]
> [ budget: 0 target qdelay: 10.00 msec update interval:100.00 msec ]
> [ flow control: 0 feedback: 0 stalls: 0 failed: 0 overwhelming: 0 ]
> [ drop overflow: 0 early: 0 memfail: 0 duprexmt:0 ]
> [ flows total: 0 new: 0 old: 0 ]
> [ throttle on: 0 off: 0 drop: 0 ]
> [ compressible pkts: 0 compressed pkts: 0]
> =====================================================
> [ pri: OAM (5) srv_cl: 0x200020 quantum: 1514 drr_max: 4 ]
> [ queued pkts: 0 bytes: 0 ]
> [ dequeued pkts: 0 bytes: 0 ]
> [ budget: 0 target qdelay: 10.00 msec update interval:100.00 msec ]
> [ flow control: 0 feedback: 0 stalls: 0 failed: 0 overwhelming: 0 ]
> [ drop overflow: 0 early: 0 memfail: 0 duprexmt:0 ]
> [ flows total: 0 new: 0 old: 0 ]
> [ throttle on: 0 off: 0 drop: 0 ]
> [ compressible pkts: 0 compressed pkts: 0]
> =====================================================
> [ pri: RD (6) srv_cl: 0x180010 quantum: 1514 drr_max: 4 ]
> [ queued pkts: 0 bytes: 0 ]
> [ dequeued pkts: 13 bytes: 6684 ]
> [ budget: 0 target qdelay: 10.00 msec update interval:100.00 msec ]
> [ flow control: 0 feedback: 0 stalls: 0 failed: 0 overwhelming: 0 ]
> [ drop overflow: 0 early: 0 memfail: 0 duprexmt:0 ]
> [ flows total: 0 new: 0 old: 0 ]
> [ throttle on: 0 off: 0 drop: 0 ]
> [ compressible pkts: 0 compressed pkts: 0]
> =====================================================
> [ pri: BE (7) srv_cl: 0x0 quantum: 1514 drr_max: 4 ]
> [ queued pkts: 0 bytes: 0 ]
> [ dequeued pkts: 225368 bytes: 314071428 ]
> [ budget: 0 target qdelay: 10.00 msec update interval:100.00 msec ]
> [ flow control: 0 feedback: 0 stalls: 0 failed: 0 overwhelming: 0 ]
> [ drop overflow: 0 early: 0 memfail: 0 duprexmt:0 ]
> [ flows total: 0 new: 0 old: 0 ]
> [ throttle on: 0 off: 0 drop: 0 ]
> [ compressible pkts: 0 compressed pkts: 0]
> =====================================================
> [ pri: BK (8) srv_cl: 0x100080 quantum: 1514 drr_max: 2 ]
> [ queued pkts: 0 bytes: 0 ]
> [ dequeued pkts: 3831 bytes: 576846 ]
> [ budget: 0 target qdelay: 10.00 msec update interval:100.00 msec ]
> [ flow control: 0 feedback: 0 stalls: 0 failed: 0 overwhelming: 0 ]
> [ drop overflow: 0 early: 0 memfail: 0 duprexmt:0 ]
> [ flows total: 0 new: 0 old: 0 ]
> [ throttle on: 0 off: 0 drop: 0 ]
> [ compressible pkts: 0 compressed pkts: 0]
> =====================================================
> [ pri: BK_SYS (9) srv_cl: 0x80090 quantum: 1514 drr_max: 2 ]
> [ queued pkts: 0 bytes: 0 ]
> [ dequeued pkts: 385 bytes: 22350 ]
> [ budget: 0 target qdelay: 10.00 msec update interval:100.00 msec ]
> [ flow control: 0 feedback: 0 stalls: 0 failed: 0 overwhelming: 0 ]
> [ drop overflow: 0 early: 0 memfail: 0 duprexmt:0 ]
> [ flows total: 0 new: 0 old: 0 ]
> [ throttle on: 0 off: 0 drop: 0 ]
> [ compressible pkts: 375 compressed pkts: 0]
> macbook:CAKE-autorate user$ uname -a
> Darwin macbook.local 21.6.0 Darwin Kernel Version 21.6.0: Fri Sep 15 16:17:23 PDT 2023; root:xnu-8020.240.18.703.5~1/RELEASE_X86_64 x86_64
>
>
> Here is the flent output:
>
> bash-3.2$ echo "IPv4" ; date ; ping -c 10 netperf-eu.bufferbloat.net ; ./run-flent --ipv4 -l 60 -H netperf-eu.bufferbloat.net rrul_var --remote-metadata=root at 192.168.42.1 --test-parameter=cpu_stats_hosts=root at 192.168.42.1 --step-size=.05 --test-parameter bidir_streams=8 --test-parameter markings=CS0,CS1,CS2,CS3,CS4,CS5,CS6,CS7 --test-parameter ping_hosts=1.1.1.1 -D . -t IPv4_SQM_cake_layer-cake_LLA-ETH_OH34_U097pct45500of46719K-D090pct105000of116789K_hms-beagle2_en4TB2_TurrisOmnia-TurrisOS.6.3.2-pppoe-wan-eth2.7_2_bridged-FB7520-OpenWrt-r22256-14334c222e-OutdoorMSAN-VDSL100_2_netperf-eu.bufferbloat.net --log-file
> IPv4
> Sat Oct 14 21:19:24 CEST 2023
> PING demo.tohojo.dk (193.10.227.30): 56 data bytes
> 64 bytes from 193.10.227.30: icmp_seq=0 ttl=48 time=24.259 ms
> 64 bytes from 193.10.227.30: icmp_seq=1 ttl=48 time=22.789 ms
> 64 bytes from 193.10.227.30: icmp_seq=2 ttl=48 time=24.097 ms
> 64 bytes from 193.10.227.30: icmp_seq=3 ttl=48 time=24.433 ms
> 64 bytes from 193.10.227.30: icmp_seq=4 ttl=48 time=24.342 ms
> 64 bytes from 193.10.227.30: icmp_seq=5 ttl=48 time=24.325 ms
> 64 bytes from 193.10.227.30: icmp_seq=6 ttl=48 time=23.456 ms
> 64 bytes from 193.10.227.30: icmp_seq=7 ttl=48 time=22.628 ms
> 64 bytes from 193.10.227.30: icmp_seq=8 ttl=48 time=24.396 ms
> 64 bytes from 193.10.227.30: icmp_seq=9 ttl=48 time=23.521 ms
>
> --- demo.tohojo.dk ping statistics ---
> 10 packets transmitted, 10 packets received, 0.0% packet loss
> round-trip min/avg/max/stddev = 22.628/23.825/24.433/0.649 ms
> Starting Flent 2.1.1+git.7b931915 using Python 3.10.8.
> Starting rrul_var test. Expected run time: 70 seconds.
> Data file written to ./rrul_var-2023-10-14T211934.512820.IPv4_SQM_cake_layer-cake_LLA-ETH_OH34_U097pct45500of46719K-D090pct105000of116789K_hms-beagle2_en4TB2_TurrisOmnia-TurrisOS_6_3_2-pppoe-wan-eth2_7_2_bridged-FB7520-OpenWrt-r22256-14334c222e-OutdoorMSAN-VDSL100.flent.gz
>
> Summary of rrul_var test run from 2023-10-14 19:19:34.512820
> Title: 'IPv4_SQM_cake_layer-cake_LLA-ETH_OH34_U097pct45500of46719K-D090pct105000of116789K_hms-beagle2_en4TB2_TurrisOmnia-TurrisOS.6.3.2-pppoe-wan-eth2.7_2_bridged-FB7520-OpenWrt-r22256-14334c222e-OutdoorMSAN-VDSL100_2_netperf-eu.bufferbloat.net'
>
> avg median 99th % # data pts
> Ping (ms) ICMP 1.1.1.1 (extra) : 13.10 12.90 17.40 ms 1396
> Ping (ms) avg : 27.07 N/A N/A ms 1639
> Ping (ms)::ICMP : 26.15 26.10 30.70 ms 1399
> Ping (ms)::UDP 0 (CS0) : 27.78 27.55 32.13 ms 1639
> Ping (ms)::UDP 1 (CS1) : 29.34 29.51 35.09 ms 1639
> Ping (ms)::UDP 2 (CS2) : 26.18 26.06 30.56 ms 1639
> Ping (ms)::UDP 3 (CS3) : 26.22 26.06 30.77 ms 1639
> Ping (ms)::UDP 4 (CS4) : 26.20 25.98 30.93 ms 1639
> Ping (ms)::UDP 5 (CS5) : 26.20 26.06 31.33 ms 1639
> Ping (ms)::UDP 6 (CS6) : 28.13 28.11 32.86 ms 1639
> Ping (ms)::UDP 7 (CS7) : 26.51 26.44 31.39 ms 1639
> TCP download avg : 11.33 N/A N/A Mbits/s 1639
> TCP download sum : 90.62 N/A N/A Mbits/s 1639
> TCP download::0 (CS0) : 11.39 11.25 17.48 Mbits/s 1639
> TCP download::1 (CS1) : 10.66 10.21 28.97 Mbits/s 1639
> TCP download::2 (CS2) : 12.17 11.99 18.87 Mbits/s 1639
> TCP download::3 (CS3) : 11.29 11.06 18.27 Mbits/s 1639
> TCP download::4 (CS4) : 11.87 11.34 23.51 Mbits/s 1639
> TCP download::5 (CS5) : 10.51 10.49 16.58 Mbits/s 1639
> TCP download::6 (CS6) : 11.37 11.15 18.32 Mbits/s 1639
> TCP download::7 (CS7) : 11.36 11.25 16.99 Mbits/s 1639
> TCP totals : 130.00 N/A N/A Mbits/s 1639
> TCP upload avg : 4.92 N/A N/A Mbits/s 1639
> TCP upload sum : 39.38 N/A N/A Mbits/s 1639
> TCP upload::0 (CS0) : 5.50 5.48 7.94 Mbits/s 1639
> TCP upload::1 (CS1) : 2.13 2.19 2.64 Mbits/s 1639
> TCP upload::2 (CS2) : 5.47 5.47 7.13 Mbits/s 1639
> TCP upload::3 (CS3) : 5.47 5.48 6.97 Mbits/s 1639
> TCP upload::4 (CS4) : 5.47 5.49 7.23 Mbits/s 1639
> TCP upload::5 (CS5) : 5.46 5.46 6.83 Mbits/s 1639
> TCP upload::6 (CS6) : 4.96 4.95 6.25 Mbits/s 1639
> TCP upload::7 (CS7) : 4.92 4.94 6.18 Mbits/s 1639
> cpu_stats_root at 192.168.42.1::load : 0.40 0.42 0.83 1243
> bash-3.2$
>
>
>
--
Oct 30: https://netdevconf.info/0x17/news/the-maestro-and-the-music-bof.html
Dave Täht CSO, LibreQos
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