Date: Thu, 10 Apr 2025 18:44:28 -0700 From: Adrian Chadd <adrian@freebsd.org> To: "Bjoern A. Zeeb" <bz@freebsd.org> Cc: FreeBSD wireless mailing list <wireless@freebsd.org> Subject: Re: Watch out for 850Mbit/s WiFi Message-ID: <CAJ-VmomxO%2BwhLPCRA-Es7syyvHwYf1aB81qbxOpmyPqQqFTW8w@mail.gmail.com> In-Reply-To: <05695o18-q600-150s-1s69-s44n49s027o2@SerrOFQ.bet>
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[-- Attachment #1 --] NIIIIIIIICEEEEEEEEEEEEEEEE :-) -adrian On Thu, 10 Apr 2025 at 18:43, Bjoern A. Zeeb <bz@freebsd.org> wrote: > Hi, > > I had a bit of fun tonight after all and figured out what prevented me > from enabling VHT80P80 and VHT160 since January for testing. Patches > to come to review tomorrow (well that is today here). Turns out I cannot > test VHT80P80 currently. > > This is likely the first VHT/160 assoc on FreeBSD so I thought I'd send > the email. > > And I ran the simple silly iperf3 test. > Not much more than VHT80 but I am also sure I am starting to hit other > limits in this test setup. It goes from the AX210 in a bhyve instance > to AP to a small 4 port switch and back into em0 on the same laptop > just the base system running the iperf3 server. > > Down there is UDP TX from the wifi set to 960Mbit/s target rate. > Don't expect that with single stream TCP. Yet another thing to debug ;) > > Keep in mind we are still copying the full frame incl. data from > skb to mbuf or vice versa depending on direction and other fun bits > to optimize one day. I guess I'll try to find an AP supporting 11BE > and SFP+ for 10G DAC or fiber for christmas this year... until then it'll > be other things to get us stable first. > > Try it our yourself please -- even with VHT80! > > Lots of joy > Bjoern > > > # ifconfig -v wlan0 > wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 > options=0 > ether 74:13:ea:6e:de:c1 > inet6 fe80::7613:eaff:fe6e:dec1%wlan0 prefixlen 64 scopeid 0x3 > inet6 .... > groups: wlan > ssid abc123 channel 40 (5200 MHz 11a vht/160) bssid > 9a:9d:7e:76:6f:fa > regdomain ETSI country DE anywhere -ecm authmode WPA2/802.11i -wps > -tsn privacy ON deftxkey UNDEF > AES-CCM 2:128-bit > powersavemode OFF powersavesleep 100 txpower 22 txpowmax 50.0 > -dotd > rtsthreshold 2346 fragthreshold 2346 bmiss 7 > 11a ucast NONE mgmt 6 Mb/s mcast 6 Mb/s maxretry 6 > 11b ucast NONE mgmt 1 Mb/s mcast 1 Mb/s maxretry 6 > 11g ucast NONE mgmt 1 Mb/s mcast 1 Mb/s maxretry 6 > 11na ucast NONE mgmt 6 Mb/s mcast 6 Mb/s maxretry 6 > 11ng ucast NONE mgmt 1 Mb/s mcast 1 Mb/s maxretry 6 > 11ac ucast NONE mgmt 6 Mb/s mcast 6 Mb/s maxretry 6 > scanvalid 60 -bgscan bgscanintvl 300 bgscanidle 250 > roam:11a rssi 7dBm rate 12 Mb/s > roam:11b rssi 7dBm rate 1 Mb/s > roam:11g rssi 7dBm rate 5 Mb/s > roam:11na rssi 7dBm MCS 1 > roam:11ng rssi 7dBm MCS 1 > roam:11ac rssi 7dBm MCS 1 > -pureg protmode CTS ht htcompat -ampdutx ampdurx ampdulimit 64k > ampdudensity NA -amsdutx amsdurx shortgi htprotmode RTSCTS -puren > -smps -rifs stbc -ldpctx ldpcrx -uapsd vht vht40 vht80 vht160 > -vht80p80 wme -burst -dwds roaming MANUAL bintval 100 > AC_BE cwmin 4 cwmax 10 aifs 3 txopLimit 0 -acm ack > cwmin 0 cwmax 0 aifs 0 txopLimit 0 -acm > AC_BK cwmin 4 cwmax 10 aifs 7 txopLimit 0 -acm ack > cwmin 4 cwmax 10 aifs 7 txopLimit 0 -acm > AC_VI cwmin 3 cwmax 4 aifs 2 txopLimit 94 -acm ack > cwmin 0 cwmax 0 aifs 0 txopLimit 0 -acm > AC_VO cwmin 2 cwmax 3 aifs 2 txopLimit 47 -acm ack > cwmin 0 cwmax 0 aifs 0 txopLimit 0 -acm > parent interface: iwlwifi0 > media: IEEE 802.11 Wireless Ethernet VHT mode 11ac > status: associated > nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL> > drivername: wlan0 > > # sysctl compat.linuxkpi.80211.wlan0 > compat.linuxkpi.80211.wlan0.dump_stas: > lsta 0xfffff800019b6800 sta 0xfffff800019b68c0 added_to_drv 1 > nl80211_sta_info (valid fields) 0x00004001<BEACON_RX,TX_BITRATE> > connected_time 0 inactive_time 0 > rx_bytes 0 rx_packets 0 rx_dropped_misc 0 > rx_duration 0 rx_beacon 0 rx_beacon_signal_avg 0 > tx_bytes 0 tx_packets 0 tx_failed 0 > tx_duration 0 tx_retries 0 > signal 0 signal_avg 0 ack_signal 0 avg_ack_signal 0 > generation 0 assoc_req_ies_len 0 chains 0 > rxrate: flags 0 bw 0(20) legacy 0 kbit/s mcs 0 nss 0 > he_dcm 0 he_gi 0 he_ru_alloc 0 eht_gi 0 > txrate: flags 6<VHT_MCS,SGI> bw 5(160) legacy 0 kbit/s mcs 9 nss 2 > he_dcm 0 he_gi 0 he_ru_alloc 0 eht_gi 0 > > Server output: > ----------------------------------------------------------- > Server listening on 5201 (test #18) > ----------------------------------------------------------- > Accepted connection from fe80::7613:eaff:fe6e:dec1, port 59751 > [ 5] local fe80::c665:16ff:fef0:5da port 5201 connected to > fe80::7613:eaff:fe6e:dec1 port 43081 > [ ID] Interval Transfer Bitrate Jitter Lost/Total > Datagrams > [ 5] 0.00-1.00 sec 101 MBytes 844 Mbits/sec 0.018 ms 0/73529 > (0%) > [ 5] 1.00-2.00 sec 103 MBytes 866 Mbits/sec 0.017 ms 223/75199 > (0.3%) > [ 5] 2.00-3.00 sec 104 MBytes 870 Mbits/sec 0.023 ms 0/75572 > (0%) > [ 5] 3.00-4.00 sec 104 MBytes 868 Mbits/sec 0.023 ms 0/75515 > (0%) > [ 5] 4.00-5.00 sec 103 MBytes 868 Mbits/sec 0.018 ms 0/75137 > (0%) > [ 5] 5.00-6.00 sec 102 MBytes 855 Mbits/sec 0.018 ms 214/74521 > (0.29%) > [ 5] 6.00-7.00 sec 104 MBytes 867 Mbits/sec 0.015 ms 0/75371 > (0%) > [ 5] 7.00-8.00 sec 103 MBytes 867 Mbits/sec 0.016 ms 0/75074 > (0%) > [ 5] 8.00-9.00 sec 104 MBytes 867 Mbits/sec 0.020 ms 0/75475 > (0%) > [ 5] 9.00-10.00 sec 103 MBytes 867 Mbits/sec 0.017 ms 0/75057 > (0%) > [ 5] 10.00-11.00 sec 102 MBytes 855 Mbits/sec 0.025 ms 0/74420 > (0%) > [ 5] 11.00-11.10 sec 9.94 MBytes 863 Mbits/sec 0.016 ms 0/7242 (0%) > - - - - - - - - - - - - - - - - - - - - - - - - - > [ ID] Interval Transfer Bitrate Jitter Lost/Total > Datagrams > [ 5] 0.00-11.10 sec 1.12 GBytes 863 Mbits/sec 0.016 ms 437/832112 > (0.053%) receiver > > -- > Bjoern A. Zeeb r15:7 > > [-- Attachment #2 --] <div dir="ltr"><div>NIIIIIIIICEEEEEEEEEEEEEEEE</div><div><br></div><div>:-)</div><div><br></div><div><br></div><div>-adrian</div><div><br></div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Thu, 10 Apr 2025 at 18:43, Bjoern A. Zeeb <<a href="mailto:bz@freebsd.org">bz@freebsd.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi,<br> <br> I had a bit of fun tonight after all and figured out what prevented me<br> from enabling VHT80P80 and VHT160 since January for testing. Patches<br> to come to review tomorrow (well that is today here). Turns out I cannot<br> test VHT80P80 currently.<br> <br> This is likely the first VHT/160 assoc on FreeBSD so I thought I'd send<br> the email.<br> <br> And I ran the simple silly iperf3 test.<br> Not much more than VHT80 but I am also sure I am starting to hit other<br> limits in this test setup. It goes from the AX210 in a bhyve instance<br> to AP to a small 4 port switch and back into em0 on the same laptop<br> just the base system running the iperf3 server.<br> <br> Down there is UDP TX from the wifi set to 960Mbit/s target rate.<br> Don't expect that with single stream TCP. Yet another thing to debug ;)<br> <br> Keep in mind we are still copying the full frame incl. data from<br> skb to mbuf or vice versa depending on direction and other fun bits<br> to optimize one day. I guess I'll try to find an AP supporting 11BE<br> and SFP+ for 10G DAC or fiber for christmas this year... until then it'll<br> be other things to get us stable first.<br> <br> Try it our yourself please -- even with VHT80!<br> <br> Lots of joy<br> Bjoern<br> <br> <br> # ifconfig -v wlan0<br> wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500<br> options=0<br> ether 74:13:ea:6e:de:c1<br> inet6 fe80::7613:eaff:fe6e:dec1%wlan0 prefixlen 64 scopeid 0x3<br> inet6 ....<br> groups: wlan<br> ssid abc123 channel 40 (5200 MHz 11a vht/160) bssid 9a:9d:7e:76:6f:fa<br> regdomain ETSI country DE anywhere -ecm authmode WPA2/802.11i -wps<br> -tsn privacy ON deftxkey UNDEF<br> AES-CCM 2:128-bit<br> powersavemode OFF powersavesleep 100 txpower 22 txpowmax 50.0 -dotd<br> rtsthreshold 2346 fragthreshold 2346 bmiss 7<br> 11a ucast NONE mgmt 6 Mb/s mcast 6 Mb/s maxretry 6<br> 11b ucast NONE mgmt 1 Mb/s mcast 1 Mb/s maxretry 6<br> 11g ucast NONE mgmt 1 Mb/s mcast 1 Mb/s maxretry 6<br> 11na ucast NONE mgmt 6 Mb/s mcast 6 Mb/s maxretry 6<br> 11ng ucast NONE mgmt 1 Mb/s mcast 1 Mb/s maxretry 6<br> 11ac ucast NONE mgmt 6 Mb/s mcast 6 Mb/s maxretry 6<br> scanvalid 60 -bgscan bgscanintvl 300 bgscanidle 250<br> roam:11a rssi 7dBm rate 12 Mb/s<br> roam:11b rssi 7dBm rate 1 Mb/s<br> roam:11g rssi 7dBm rate 5 Mb/s<br> roam:11na rssi 7dBm MCS 1<br> roam:11ng rssi 7dBm MCS 1<br> roam:11ac rssi 7dBm MCS 1<br> -pureg protmode CTS ht htcompat -ampdutx ampdurx ampdulimit 64k<br> ampdudensity NA -amsdutx amsdurx shortgi htprotmode RTSCTS -puren<br> -smps -rifs stbc -ldpctx ldpcrx -uapsd vht vht40 vht80 vht160<br> -vht80p80 wme -burst -dwds roaming MANUAL bintval 100<br> AC_BE cwmin 4 cwmax 10 aifs 3 txopLimit 0 -acm ack<br> cwmin 0 cwmax 0 aifs 0 txopLimit 0 -acm<br> AC_BK cwmin 4 cwmax 10 aifs 7 txopLimit 0 -acm ack<br> cwmin 4 cwmax 10 aifs 7 txopLimit 0 -acm<br> AC_VI cwmin 3 cwmax 4 aifs 2 txopLimit 94 -acm ack<br> cwmin 0 cwmax 0 aifs 0 txopLimit 0 -acm<br> AC_VO cwmin 2 cwmax 3 aifs 2 txopLimit 47 -acm ack<br> cwmin 0 cwmax 0 aifs 0 txopLimit 0 -acm<br> parent interface: iwlwifi0<br> media: IEEE 802.11 Wireless Ethernet VHT mode 11ac<br> status: associated<br> nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL><br> drivername: wlan0<br> <br> # sysctl compat.linuxkpi.80211.wlan0<br> compat.linuxkpi.80211.wlan0.dump_stas:<br> lsta 0xfffff800019b6800 sta 0xfffff800019b68c0 added_to_drv 1<br> nl80211_sta_info (valid fields) 0x00004001<BEACON_RX,TX_BITRATE><br> connected_time 0 inactive_time 0<br> rx_bytes 0 rx_packets 0 rx_dropped_misc 0<br> rx_duration 0 rx_beacon 0 rx_beacon_signal_avg 0<br> tx_bytes 0 tx_packets 0 tx_failed 0<br> tx_duration 0 tx_retries 0<br> signal 0 signal_avg 0 ack_signal 0 avg_ack_signal 0<br> generation 0 assoc_req_ies_len 0 chains 0<br> rxrate: flags 0 bw 0(20) legacy 0 kbit/s mcs 0 nss 0<br> he_dcm 0 he_gi 0 he_ru_alloc 0 eht_gi 0<br> txrate: flags 6<VHT_MCS,SGI> bw 5(160) legacy 0 kbit/s mcs 9 nss 2<br> he_dcm 0 he_gi 0 he_ru_alloc 0 eht_gi 0<br> <br> Server output:<br> -----------------------------------------------------------<br> Server listening on 5201 (test #18)<br> -----------------------------------------------------------<br> Accepted connection from fe80::7613:eaff:fe6e:dec1, port 59751<br> [ 5] local fe80::c665:16ff:fef0:5da port 5201 connected to fe80::7613:eaff:fe6e:dec1 port 43081<br> [ ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams<br> [ 5] 0.00-1.00 sec 101 MBytes 844 Mbits/sec 0.018 ms 0/73529 (0%)<br> [ 5] 1.00-2.00 sec 103 MBytes 866 Mbits/sec 0.017 ms 223/75199 (0.3%)<br> [ 5] 2.00-3.00 sec 104 MBytes 870 Mbits/sec 0.023 ms 0/75572 (0%)<br> [ 5] 3.00-4.00 sec 104 MBytes 868 Mbits/sec 0.023 ms 0/75515 (0%)<br> [ 5] 4.00-5.00 sec 103 MBytes 868 Mbits/sec 0.018 ms 0/75137 (0%)<br> [ 5] 5.00-6.00 sec 102 MBytes 855 Mbits/sec 0.018 ms 214/74521 (0.29%)<br> [ 5] 6.00-7.00 sec 104 MBytes 867 Mbits/sec 0.015 ms 0/75371 (0%)<br> [ 5] 7.00-8.00 sec 103 MBytes 867 Mbits/sec 0.016 ms 0/75074 (0%)<br> [ 5] 8.00-9.00 sec 104 MBytes 867 Mbits/sec 0.020 ms 0/75475 (0%)<br> [ 5] 9.00-10.00 sec 103 MBytes 867 Mbits/sec 0.017 ms 0/75057 (0%)<br> [ 5] 10.00-11.00 sec 102 MBytes 855 Mbits/sec 0.025 ms 0/74420 (0%)<br> [ 5] 11.00-11.10 sec 9.94 MBytes 863 Mbits/sec 0.016 ms 0/7242 (0%)<br> - - - - - - - - - - - - - - - - - - - - - - - - -<br> [ ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams<br> [ 5] 0.00-11.10 sec 1.12 GBytes 863 Mbits/sec 0.016 ms 437/832112 (0.053%) receiver<br> <br> -- <br> Bjoern A. Zeeb r15:7<br> <br> </blockquote></div>home | help
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