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bad tcp performance compared to stock firmware when .11w is enabled (block-ack fails) #31

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stintel opened this issue Aug 13, 2018 · 5 comments
Closed

bad tcp performance compared to stock firmware when .11w is enabled (block-ack fails) #31

stintel opened this issue Aug 13, 2018 · 5 comments

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@stintel
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stintel commented Aug 13, 2018 •
edited by greearb
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EDIT summary by Ben: Performance is fine when .11w is disabled, and is fine with -ct driver and stock firmware with both .11w and without. Problem seems to be just with -ct firmware and .11w being enabled. The problem is that ct firmware fails to do block-ack with 11w, at least in hw-crypt mode.

I tried to reproduce on different hardware and the 4.16.18+ ct kernel and could not detect any problems with tcp or udp with 11w and -ct firmware.

Description of the problem (how to configure, how to reproduce, how often it happens).
Being fed up with the instability of ath10k, I decided to try your driver / firmware. Unfortunately I'm experiencing quite terrible performance with it. I initially tried this a few months ago. My WiFi connection was so slow at that time, that I couldn't even stream a 720p video. As I wanted to continue watching, I reverted back to stock without further testing. After our conversation in #openwrt-devel a few weeks ago, I am now retesting everything.

I thought that with all combinations of ath10k stock with your firmware, ath10k-ct with -ct firmware and ath10k-ct with -ct-htt firmware were equally bad. Testing now shows that this is not true. It's with ath10k-ct and -ct-htt firmware that performance is so bad that it makes it unusable. See the iperf results below. The tests were done with both the AP and the client in the exact same location (in the bedroom with closed doors, doors have windows in them). The distance between the AP and client is roughly 9m.

/etc/config/wireless:

config wifi-device 'radio0'
        option type 'mac80211'
        option channel '36'
        option country 'BG'
        option htmode 'VHT80'
        option hwmode '11a'
        option legacy_rates '0'
        option path 'pci0000:00/0000:00:00.0'
        option disabled '0'

config wifi-iface 'default_radio0'
        option device 'radio0'
        option ifname 'wlan0'
        option encryption 'psk2'
        option ieee80211w '1'
        option peerkey '1'
        option rsn_preauth '0'
        option network 'lan'
        option mode 'ap'
        option ssid 'XXXXXXXX'
        option key 'VerySecretPSK'
        option nasid 'wlan0.ap1'
        option ieee80211r '1'
        option ft_psk_generate_local '1'
        option wpa_disable_eapol_key_retries '1'

config wifi-iface 'guest_radio0'
        option device 'radio0'
        option ifname 'wlan2'
        option encryption 'psk2+ccmp'
        option ieee80211w '1'
        option network 'guest'
        option mode 'ap'
        option ssid 'XXXXXXXX-Guests'
        option key 'VerySecretGuestPSK'
        option wpa_disable_eapol_key_retries '1'
        option disabled '0'

config wifi-device 'radio1'
        option type 'mac80211'
        option channel '11'
        option country 'BG'
        option htmode 'HT20'
        option hwmode '11g'
        option legacy_rates '0'
        option path 'platform/ahb/ahb:apb/18100000.wmac'
        option txpower '20'
        option disabled '0'

config wifi-iface 'default_radio1'
        option device 'radio1'
        option ifname 'wlan1'
        option encryption 'psk2'
        option ieee80211w '1'
        option peerkey '1'
        option rsn_preauth '0'
        option network 'lan'
        option mode 'ap'
        option ssid 'XXXXXXXX'
        option key 'VerySecretPSK'
        option nasid 'wlan1.ap1'
        option ieee80211r '1'
        option ft_psk_generate_local '1'
        option wpa_disable_eapol_key_retries '1'
        option macfilter 'deny'
        list maclist '2c:54:91:80:8c:5d'
        list maclist '58:82:a8:c0:cf:e4'

config wifi-iface 'guest_radio1'
        option device 'radio1'
        option ifname 'wlan3'
        option encryption 'psk2+ccmp'
        option ieee80211w '1'
        option network 'guest'
        option mode 'ap'
        option ssid 'XXXXXXXX-Guests'
        option key 'VerySecretGuestPSK'
        option wpa_disable_eapol_key_retries '1'
        option disabled '0'

Software (OS, Firmware version, kernel, driver, etc)
AP: Ubiquiti Unifi AP AC Pro running OpenWrt master (ath79) built from blogic's staging tree (mac80211 4.18-rc7)
Client: Dell XPS13 9343 w/ Intel 8265 running Gentoo Linux w/ 4.17.13 kernel

Hardware (NIC chipset, platform, etc)
Ubiquiti Unifi AP AC Pro
[ 22.543045] ath10k_pci 0000:00:00.0: qca988x hw2.0 target 0x4100016c chip_id 0x043202ff sub 0000:0000

Logs (dmesg, maybe supplicant and/or hostap)

ath10k + stock firmware

stijn@sylvester ~ $ sudo iw wlan0 link
Connected to f0:9f:c2:22:30:9b (on wlan0)
        SSID: XXXXXXXX
        freq: 5180
        RX: 28559 bytes (190 packets)
        TX: 14061 bytes (93 packets)
        signal: -67 dBm
        tx bitrate: 650.0 MBit/s VHT-MCS 7 80MHz short GI VHT-NSS 2

        bss flags:      short-slot-time
        dtim period:    2
        beacon int:     100
stijn@sylvester ~ $ iperf -c 192.168.54.10
------------------------------------------------------------
Client connecting to 192.168.54.10, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[  3] local 192.168.54.190 port 34866 connected with 192.168.54.10 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-10.0 sec   206 MBytes   172 Mbits/sec

ath10k + ct firmware

stijn@sylvester ~ $ sudo iw wlan0 link
Connected to f0:9f:c2:22:30:9b (on wlan0)
        SSID: XXXXXXXX
        freq: 5180
        RX: 12889 bytes (92 packets)
        TX: 4376 bytes (32 packets)
        signal: -71 dBm
        tx bitrate: 585.1 MBit/s VHT-MCS 6 80MHz short GI VHT-NSS 2

        bss flags:      short-slot-time
        dtim period:    2
        beacon int:     100
stijn@sylvester ~ $ iperf -c 192.168.54.10
------------------------------------------------------------
Client connecting to 192.168.54.10, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[  3] local 192.168.54.190 port 34868 connected with 192.168.54.10 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-10.0 sec  78.2 MBytes  65.4 Mbits/sec

ath10k-ct + ct firmware

stijn@sylvester ~ $ sudo iw wlan0 link
Connected to f0:9f:c2:22:30:9b (on wlan0)
        SSID: XXXXXXXX
        freq: 5180
        RX: 183728 bytes (1705 packets)
        TX: 5960591 bytes (3952 packets)
        signal: -72 dBm
        tx bitrate: 585.1 MBit/s VHT-MCS 6 80MHz short GI VHT-NSS 2

        bss flags:      short-slot-time
        dtim period:    2
        beacon int:     100
stijn@sylvester ~ $ iperf -c 192.168.54.10
------------------------------------------------------------
Client connecting to 192.168.54.10, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[  3] local 192.168.54.190 port 34880 connected with 192.168.54.10 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-10.1 sec  83.2 MBytes  69.4 Mbits/sec

ath10k-ct + ct-htt firmware

stijn@sylvester ~ $ sudo iw wlan0 link
Connected to f0:9f:c2:22:30:9b (on wlan0)
        SSID: XXXXXXXX
        freq: 5180
        RX: 11893 bytes (94 packets)
        TX: 6636 bytes (54 packets)
        signal: -72 dBm
        tx bitrate: 585.1 MBit/s VHT-MCS 6 80MHz short GI VHT-NSS 2

        bss flags:      short-slot-time
        dtim period:    2
        beacon int:     100
stijn@sylvester ~ $ iperf -c 192.168.54.10
------------------------------------------------------------
Client connecting to 192.168.54.10, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[  3] local 192.168.54.190 port 34884 connected with 192.168.54.10 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-10.0 sec  24.4 MBytes  20.4 Mbits/sec
@stintel
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stintel commented Aug 13, 2018

Apparently it seems to be related to 11W. After disabling 11W, the performance with -ct-htt seems to be very close to stock:

stijn@sylvester ~ $ sudo iw wlan0 link
Connected to f0:9f:c2:22:30:9b (on wlan0)
        SSID: XXXXXXXX
        freq: 5180
        RX: 10268 bytes (66 packets)
        TX: 2433 bytes (24 packets)
        signal: -71 dBm
        tx bitrate: 585.1 MBit/s VHT-MCS 6 80MHz short GI VHT-NSS 2

        bss flags:      short-slot-time
        dtim period:    2
        beacon int:     100
stijn@sylvester ~ $ iperf -c 192.168.54.10
------------------------------------------------------------
Client connecting to 192.168.54.10, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[  3] local 192.168.54.190 port 34888 connected with 192.168.54.10 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-10.0 sec   200 MBytes   168 Mbits/sec

@stintel
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stintel commented Aug 13, 2018

As requested, hostapd-phy0.conf:

driver=nl80211
logger_syslog=127
logger_syslog_level=2
logger_stdout=127
logger_stdout_level=2
country_code=BG
ieee80211d=1
ieee80211h=1
hw_mode=a
beacon_int=100
channel=36


ieee80211n=1
ht_coex=0
ht_capab=[HT40+][LDPC][SHORT-GI-20][SHORT-GI-40][TX-STBC][RX-STBC1][MAX-AMSDU-7935][DSSS_CCK-40]
vht_oper_chwidth=1
vht_oper_centr_freq_seg0_idx=42
ieee80211ac=1
vht_capab=[RXLDPC][SHORT-GI-80][TX-STBC-2BY1][RX-ANTENNA-PATTERN][TX-ANTENNA-PATTERN][RX-STBC-1][MAX-MPDU-11454][MAX-A-MPDU-LEN-EXP7]

interface=wlan0
ctrl_interface=/var/run/hostapd
ap_isolate=1
bss_load_update_period=60
chan_util_avg_period=600
disassoc_low_ack=1
preamble=1
wmm_enabled=1
ignore_broadcast_ssid=0
uapsd_advertisement_enabled=1
nas_identifier=wlan0.ap1
wpa_passphrase=VerySecretPSK
auth_algs=1
wpa=2
wpa_pairwise=CCMP
ssid=XXXXXXXX
bridge=br-lan
mobility_domain=bb82
ft_psk_generate_local=1
ft_over_ds=1
reassociation_deadline=1000
wpa_disable_eapol_key_retries=1
wpa_key_mgmt=WPA-PSK FT-PSK WPA-PSK-SHA256
okc=0
disable_pmksa_caching=1
ieee80211w=1
group_mgmt_cipher=AES-128-CMAC
bssid=f0:9f:c2:22:30:9b


bss=wlan2
ctrl_interface=/var/run/hostapd
ap_isolate=1
bss_load_update_period=60
chan_util_avg_period=600
disassoc_low_ack=1
preamble=1
wmm_enabled=1
ignore_broadcast_ssid=0
uapsd_advertisement_enabled=1
wpa_passphrase=VerySecretGuestPSK
auth_algs=1
wpa=2
wpa_pairwise=CCMP
ssid=XXXXXXXX-Guests
bridge=br-guest
wpa_disable_eapol_key_retries=1
wpa_key_mgmt=WPA-PSK WPA-PSK-SHA256
okc=0
disable_pmksa_caching=1
ieee80211w=1
group_mgmt_cipher=AES-128-CMAC
bssid=f2:9f:c2:22:30:9b

@stintel
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Author

stintel commented Aug 13, 2018

ath10k-ct with stock firmware

stijn@sylvester ~ $ sudo iw wlan0 link
Connected to f0:9f:c2:22:30:9b (on wlan0)
        SSID: wlan.hq.adlevio.net
        freq: 5180
        RX: 846374 bytes (3661 packets)
        TX: 53299213 bytes (34782 packets)
        signal: -68 dBm
        tx bitrate: 650.0 MBit/s VHT-MCS 7 80MHz short GI VHT-NSS 2

        bss flags:      short-slot-time
        dtim period:    2
        beacon int:     100
stijn@sylvester ~ $ iperf -c 192.168.54.10
------------------------------------------------------------
Client connecting to 192.168.54.10, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[  3] local 192.168.54.190 port 34900 connected with 192.168.54.10 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0-10.0 sec   213 MBytes   179 Mbits/sec

@huaracheguarache
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I also experience this issue with ath10k-ct and the -htt firmware.

/ect/config/wireless:

config wifi-device 'radio0'
	option type 'mac80211'
	option channel '36'
	option hwmode '11a'
	option path 'soc/1b500000.pci/pci0000:00/0000:00:00.0/0000:01:00.0'
	option htmode 'VHT80'
	option txpower '23'
	option country 'NO'
	option legacy_rates '0'

config wifi-iface 'default_radio0'
	option device 'radio0'
	option network 'lan'
	option mode 'ap'
	option ssid 'openwrt'
	option encryption 'psk2+ccmp'
	option key 'psk'
	option ieee80211w '1'

config wifi-device 'radio1'
	option type 'mac80211'
	option channel '11'
	option hwmode '11g'
	option path 'soc/1b700000.pci/pci0001:00/0001:00:00.0/0001:01:00.0'
	option htmode 'HT20'
	option txpower '19'
	option country 'NO'
	option legacy_rates '0'

config wifi-iface 'default_radio1'
	option device 'radio1'
	option network 'lan'
	option mode 'ap'
	option ssid 'openwrt'
	option encryption 'psk2+ccmp'
	option key 'psk'
	option ieee80211w '1'

/var/run/hostapd-phy0.conf:

driver=nl80211
logger_syslog=127
logger_syslog_level=2
logger_stdout=127
logger_stdout_level=2
country_code=NO
ieee80211d=1
ieee80211h=1
hw_mode=a
beacon_int=100
channel=36


ieee80211n=1
ht_coex=0
ht_capab=[HT40+][LDPC][SHORT-GI-20][SHORT-GI-40][TX-STBC][RX-STBC1][MAX-AMSDU-7935][DSSS_CCK-40]
vht_oper_chwidth=1
vht_oper_centr_freq_seg0_idx=42
ieee80211ac=1
vht_capab=[RXLDPC][SHORT-GI-80][SHORT-GI-160][TX-STBC-2BY1][SU-BEAMFORMER][SU-BEAMFORMEE][MU-BEAMFORMER][MU-BEAMFORMEE][RX-ANTENNA-PATTERN][TX-ANTENNA-PATTERN][RX-STBC-1][VHT160-80PLUS80][MAX-MPDU-11454][MAX-A-MPDU-LEN-EXP7]

interface=wlan0
ctrl_interface=/var/run/hostapd
ap_isolate=1
bss_load_update_period=60
chan_util_avg_period=600
disassoc_low_ack=1
preamble=1
wmm_enabled=1
ignore_broadcast_ssid=0
uapsd_advertisement_enabled=1
wpa_passphrase=psk
auth_algs=1
wpa=2
wpa_pairwise=CCMP
ssid=openwrt
bridge=br-lan
wpa_disable_eapol_key_retries=0
wpa_key_mgmt=WPA-PSK WPA-PSK-SHA256
okc=0
disable_pmksa_caching=1
ieee80211w=1
group_mgmt_cipher=AES-128-CMAC
bssid=a0:40:a0:7c:cb:b9

Software

AP: NETGEAR R7800 running OpenWrt master ipq806x: r7855-d20f4fc628
Client: Dell Vostro 3300 with Intel 7260 AC on Fedora 28 with kernel: 4.17.12-200.fc28.x86_64

Hardware

[ 13.617220] ath10k_pci 0000:01:00.0: qca9984/qca9994 hw1.0 target 0x01000000 chip_id 0x00000000 sub 168c:cafe

Logs

ath10k-ct + ct-htt firmware

[michael@localhost ~]$ sudo iw wlp18s0 link
Connected to a0:40:a0:7c:cb:b9 (on wlp18s0)
	SSID: openwrt
	freq: 5180
	RX: 120308049 bytes (108202 packets)
	TX: 82859230 bytes (93391 packets)
	signal: -58 dBm
	tx bitrate: 173.3 MBit/s VHT-MCS 8 short GI VHT-NSS 2

	bss flags:	short-slot-time
	dtim period:	2
	beacon int:	100

[michael@localhost ~]$ iperf3 -c bouygues.iperf.fr -R -p 5207 -P 2
Connecting to host bouygues.iperf.fr, port 5207
Reverse mode, remote host bouygues.iperf.fr is sending
[  5] local 192.168.1.204 port 52948 connected to 89.84.1.222 port 5207
[  7] local 192.168.1.204 port 52950 connected to 89.84.1.222 port 5207
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-1.00   sec  1.18 MBytes  9.86 Mbits/sec                  
[  7]   0.00-1.00   sec  1.63 MBytes  13.6 Mbits/sec                  
[SUM]   0.00-1.00   sec  2.80 MBytes  23.5 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   1.00-2.00   sec  1.25 MBytes  10.5 Mbits/sec                  
[  7]   1.00-2.00   sec  1.80 MBytes  15.1 Mbits/sec                  
[SUM]   1.00-2.00   sec  3.06 MBytes  25.7 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   2.00-3.00   sec  1.38 MBytes  11.6 Mbits/sec                  
[  7]   2.00-3.00   sec  1.69 MBytes  14.2 Mbits/sec                  
[SUM]   2.00-3.00   sec  3.07 MBytes  25.8 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   3.00-4.00   sec   996 KBytes  8.16 Mbits/sec                  
[  7]   3.00-4.00   sec  1.56 MBytes  13.1 Mbits/sec                  
[SUM]   3.00-4.00   sec  2.53 MBytes  21.2 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   4.00-5.00   sec  1.40 MBytes  11.7 Mbits/sec                  
[  7]   4.00-5.00   sec  1.65 MBytes  13.9 Mbits/sec                  
[SUM]   4.00-5.00   sec  3.05 MBytes  25.6 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   5.00-6.00   sec  1.28 MBytes  10.7 Mbits/sec                  
[  7]   5.00-6.00   sec  1.77 MBytes  14.8 Mbits/sec                  
[SUM]   5.00-6.00   sec  3.05 MBytes  25.6 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   6.00-7.00   sec  1.17 MBytes  9.78 Mbits/sec                  
[  7]   6.00-7.00   sec  1.83 MBytes  15.3 Mbits/sec                  
[SUM]   6.00-7.00   sec  2.99 MBytes  25.1 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   7.00-8.00   sec  1.35 MBytes  11.3 Mbits/sec                  
[  7]   7.00-8.00   sec  1.59 MBytes  13.3 Mbits/sec                  
[SUM]   7.00-8.00   sec  2.94 MBytes  24.6 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   8.00-9.00   sec  1.00 MBytes  8.40 Mbits/sec                  
[  7]   8.00-9.00   sec  1.57 MBytes  13.2 Mbits/sec                  
[SUM]   8.00-9.00   sec  2.57 MBytes  21.6 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   9.00-10.00  sec  1.01 MBytes  8.44 Mbits/sec                  
[  7]   9.00-10.00  sec  1.95 MBytes  16.4 Mbits/sec                  
[SUM]   9.00-10.00  sec  2.96 MBytes  24.8 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec  14.8 MBytes  12.4 Mbits/sec    1             sender
[  5]   0.00-10.00  sec  12.0 MBytes  10.0 Mbits/sec                  receiver
[  7]   0.00-10.00  sec  19.5 MBytes  16.4 Mbits/sec    0             sender
[  7]   0.00-10.00  sec  17.0 MBytes  14.3 Mbits/sec                  receiver
[SUM]   0.00-10.00  sec  34.3 MBytes  28.8 Mbits/sec    1             sender
[SUM]   0.00-10.00  sec  29.0 MBytes  24.3 Mbits/sec                  receiver

iperf Done.

Here are the results when I disable 802.11w:

[michael@localhost ~]$ iperf3 -c bouygues.iperf.fr -R -p 5207 -P 2
Connecting to host bouygues.iperf.fr, port 5207
Reverse mode, remote host bouygues.iperf.fr is sending
[  5] local 192.168.1.204 port 52910 connected to 89.84.1.222 port 5207
[  7] local 192.168.1.204 port 52912 connected to 89.84.1.222 port 5207
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-1.00   sec  3.99 MBytes  33.5 Mbits/sec                  
[  7]   0.00-1.00   sec  1.72 MBytes  14.4 Mbits/sec                  
[SUM]   0.00-1.00   sec  5.71 MBytes  47.9 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   1.00-2.00   sec  4.95 MBytes  41.6 Mbits/sec                  
[  7]   1.00-2.00   sec  2.30 MBytes  19.3 Mbits/sec                  
[SUM]   1.00-2.00   sec  7.25 MBytes  60.8 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   2.00-3.00   sec  5.17 MBytes  43.4 Mbits/sec                  
[  7]   2.00-3.00   sec  2.78 MBytes  23.3 Mbits/sec                  
[SUM]   2.00-3.00   sec  7.95 MBytes  66.7 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   3.00-4.00   sec  5.59 MBytes  46.9 Mbits/sec                  
[  7]   3.00-4.00   sec  3.32 MBytes  27.8 Mbits/sec                  
[SUM]   3.00-4.00   sec  8.91 MBytes  74.7 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   4.00-5.00   sec  5.92 MBytes  49.7 Mbits/sec                  
[  7]   4.00-5.00   sec  3.72 MBytes  31.2 Mbits/sec                  
[SUM]   4.00-5.00   sec  9.64 MBytes  80.9 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   5.00-6.00   sec  6.35 MBytes  53.2 Mbits/sec                  
[  7]   5.00-6.00   sec  3.69 MBytes  31.0 Mbits/sec                  
[SUM]   5.00-6.00   sec  10.0 MBytes  84.2 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   6.00-7.00   sec  6.81 MBytes  57.1 Mbits/sec                  
[  7]   6.00-7.00   sec  3.54 MBytes  29.7 Mbits/sec                  
[SUM]   6.00-7.00   sec  10.3 MBytes  86.8 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   7.00-8.00   sec  7.48 MBytes  62.7 Mbits/sec                  
[  7]   7.00-8.00   sec  4.05 MBytes  33.9 Mbits/sec                  
[SUM]   7.00-8.00   sec  11.5 MBytes  96.7 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   8.00-9.00   sec  7.58 MBytes  63.6 Mbits/sec                  
[  7]   8.00-9.00   sec  4.21 MBytes  35.3 Mbits/sec                  
[SUM]   8.00-9.00   sec  11.8 MBytes  98.9 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   9.00-10.00  sec  8.27 MBytes  69.4 Mbits/sec                  
[  7]   9.00-10.00  sec  4.78 MBytes  40.1 Mbits/sec                  
[SUM]   9.00-10.00  sec  13.0 MBytes   109 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec  63.7 MBytes  53.4 Mbits/sec    1             sender
[  5]   0.00-10.00  sec  62.1 MBytes  52.1 Mbits/sec                  receiver
[  7]   0.00-10.00  sec  35.0 MBytes  29.4 Mbits/sec    2             sender
[  7]   0.00-10.00  sec  34.1 MBytes  28.6 Mbits/sec                  receiver
[SUM]   0.00-10.00  sec  98.7 MBytes  82.8 Mbits/sec    3             sender
[SUM]   0.00-10.00  sec  96.2 MBytes  80.7 Mbits/sec                  receiver

iperf Done.

@greearb greearb changed the title bad performance compared to stock driver / firmware bad performance compared to stock firmware when .11w is enabled Aug 14, 2018
@greearb greearb changed the title bad performance compared to stock firmware when .11w is enabled bad tcp performance compared to stock firmware when .11w is enabled Aug 15, 2018
@greearb greearb changed the title bad tcp performance compared to stock firmware when .11w is enabled bad tcp performance compared to stock firmware when .11w is enabled (block-ack fails) Aug 22, 2018
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greearb commented Aug 24, 2018

The root cause was block-ack failing in 11w mode. I fixed this by backporting the appropriate code from 10.2 firmware and updating the driver to allow 11w mode in 10.1 firmware. Appears to be fixed now.

@greearb greearb closed this as completed Aug 24, 2018
@huaracheguarache huaracheguarache mentioned this issue Aug 28, 2018
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@greearb @stintel @huaracheguarache