#17582: poor WiFi performance / ath9k / TP-LINK TL-WR1043ND v1
------------------------+------------------------
Reporter: bittorf@… | Owner: developers
Type: defect | Status: reopened
Priority: normal | Milestone:
Component: packages | Version: Trunk
Resolution: | Keywords:
------------------------+------------------------
Comment (by bittorf@…):
i can see it again today with r43589 - configured mode adhoc+ap on TP-LINK
TL-WR1043ND:
{{{
root@box:~ cat
/sys/kernel/debug/ieee80211/phy0/netdev:wlan0-1/stations/00:21:6a:32:7c:1c/rc_stats
type rate tpt eprob *prob ret *ok(*cum) ok(
cum)
CCK/LP 1.0M 0.0 7.0 0.0 0 0( 0) 15(
283)
CCK/SP 2.0M 1.5 100.0 100.0 0 0( 0) 1(
1)
CCK/SP 5.5M 2.1 51.6 100.0 0 0( 0) 3(
6)
CCK/SP 11.0M 6.1 100.0 100.0 0 0( 0) 1(
1)
HT20/LGI MCS0 0.0 9.3 0.0 2 0( 1) 59(
170)
HT20/LGI MCS1 1.5 14.0 0.0 0 0( 0) 1(
6)
HT20/LGI MCS2 3.6 23.0 0.0 5 0( 0) 60(
180)
HT20/LGI B MCS3 6.8 33.4 0.0 5 0( 0) 17(
64)
HT20/LGI C MCS4 6.7 24.1 0.0 5 0( 0) 179(
614)
HT20/LGI D MCS5 6.2 18.8 0.0 5 0( 0) 75(
278)
HT20/LGI MCS6 6.2 17.4 0.0 5 0( 5) 1116(
2338)
HT20/LGI A P MCS7 10.9 28.4 0.0 5 0( 3) 120(
352)
HT20/LGI MCS8 1.8 16.4 0.0 0 0( 0) 2(
7)
HT20/LGI MCS9 2.1 10.5 0.0 0 0( 0) 1(
5)
HT20/LGI MCS10 0.0 7.9 0.0 0 0( 0) 1(
7)
HT20/LGI MCS11 4.4 13.3 0.0 5 0( 0) 214(
719)
HT20/LGI MCS12 5.6 13.3 0.0 5 0( 0) 839(
2591)
HT20/LGI MCS13 5.7 12.0 0.0 5 0( 0) 292(
900)
HT20/LGI MCS14 0.0 0.0 0.0 0 0( 0) 0(
6)
HT20/LGI MCS15 0.0 5.7 0.0 5 0( 0) 44(
212)
Total packet count:: ideal 2982 lookaround 94
Average A-MPDU length: 1.8
}}}
{{{
root@box:~ for W in reset interrupt queues;do for F in
/sys/kernel/debug/ieee80211/phy*/ath9k/$W
/sys/kernel/debug/ieee80211/phy*/queues; do echo "### $F"; cat $F; done;
done
### /sys/kernel/debug/ieee80211/phy0/ath9k/reset
Baseband Hang: 0
Baseband Watchdog: 0
Fatal HW Error: 0
TX HW error: 0
Transmit timeout: 0
TX Path Hang: 0
PLL RX Hang: 0
MAC Hang: 0
Stuck Beacon: 0
MCI Reset: 0
Calibration error: 0
### /sys/kernel/debug/ieee80211/phy0/queues
00: 0x00000000/0
01: 0x00000000/0
02: 0x00000000/0
03: 0x00000000/0
### /sys/kernel/debug/ieee80211/phy0/ath9k/interrupt
RX: 1641621
RXEOL: 0
RXORN: 0
TX: 344603
TXURN: 0
MIB: 0
RXPHY: 0
RXKCM: 0
SWBA: 2108843
BMISS: 0
BNR: 0
CST: 13816
GTT: 0
TIM: 0
CABEND: 0
DTIMSYNC: 0
DTIM: 0
TSFOOR: 0
MCI: 0
GENTIMER: 0
TOTAL: 3966122
SYNC_CAUSE stats:
Sync-All: 0
RTC-IRQ: 0
MAC-IRQ: 0
EEPROM-Illegal-Access: 0
APB-Timeout: 0
PCI-Mode-Conflict: 0
HOST1-Fatal: 0
HOST1-Perr: 0
TRCV-FIFO-Perr: 0
RADM-CPL-EP: 0
RADM-CPL-DLLP-Abort: 0
RADM-CPL-TLP-Abort: 0
RADM-CPL-ECRC-Err: 0
RADM-CPL-Timeout: 0
Local-Bus-Timeout: 0
PM-Access: 0
MAC-Awake: 0
MAC-Asleep: 0
MAC-Sleep-Access: 0
### /sys/kernel/debug/ieee80211/phy0/queues
00: 0x00000000/0
01: 0x00000000/0
02: 0x00000000/0
03: 0x00000000/0
### /sys/kernel/debug/ieee80211/phy0/ath9k/queues
(VO): qnum: 3 qdepth: 0 ampdu-depth: 0 pending: 0 stopped: 0
(VI): qnum: 2 qdepth: 0 ampdu-depth: 0 pending: 0 stopped: 0
(BE): qnum: 1 qdepth: 4 ampdu-depth: 2 pending: 13 stopped: 0
(BK): qnum: 0 qdepth: 0 ampdu-depth: 0 pending: 0 stopped: 0
(CAB): qnum: 8 qdepth: 0 ampdu-depth: 0 pending: 0 stopped: 0
### /sys/kernel/debug/ieee80211/phy0/queues
00: 0x00000000/0
01: 0x00000000/0
02: 0x00000000/0
03: 0x00000000/0
}}}
{{{
root@box:~ cat /sys/kernel/debug/ieee80211/phy0/ath9k/dump_nfcal
Channel Noise Floor : -91
Chain | privNF | # Readings | NF Readings
0 -80 5 -87 -80 -80 -80 -80
1 -89 5 -90 -89 -80 -89 -90
2 -80 5 -89 -80 -80 -80 -80
}}}
it does not recover automatically, i observed for 15 minutes and
after executing 'wifi' everything is fine again:
{{{
root@box:~ cat
/sys/kernel/debug/ieee80211/phy0/netdev:wlan0-1/stations/00:21:6a:32:7c:1c/rc_stats
type rate tpt eprob *prob ret *ok(*cum) ok(
cum)
CCK/LP 1.0M 0.7 96.0 100.0 0 0( 0) 8(
9)
CCK/SP 2.0M 1.5 100.0 100.0 0 0( 0) 1(
1)
CCK/SP 5.5M 3.8 100.0 100.0 0 0( 0) 1(
1)
CCK/SP 11.0M 6.1 100.0 100.0 0 0( 0) 1(
1)
HT20/LGI MCS0 5.6 100.0 100.0 3 0( 0) 2(
2)
HT20/LGI MCS1 10.5 100.0 100.0 4 0( 0) 3(
3)
HT20/LGI MCS2 14.8 100.0 100.0 0 0( 0) 1(
1)
HT20/LGI MCS3 18.6 100.0 100.0 0 0( 0) 1(
1)
HT20/LGI MCS4 25.1 100.0 100.0 0 0( 0) 1(
1)
HT20/LGI MCS5 30.3 100.0 100.0 5 0( 0) 1(
1)
HT20/LGI MCS6 32.5 100.0 100.0 0 0( 0) 1(
1)
HT20/LGI DP MCS7 35.0 100.0 100.0 5 0( 0) 1(
1)
HT20/LGI MCS8 10.5 100.0 100.0 0 0( 0) 1(
1)
HT20/LGI MCS9 18.6 100.0 100.0 0 0( 0) 1(
1)
HT20/LGI MCS10 25.1 100.0 100.0 0 0( 0) 1(
1)
HT20/LGI MCS11 30.3 100.0 100.0 0 0( 0) 1(
1)
HT20/LGI C MCS12 38.7 100.0 100.0 0 0( 0) 1(
1)
HT20/LGI B MCS13 43.7 89.4 100.0 6 0( 0) 122(
133)
HT20/LGI A MCS14 46.8 98.7 100.0 6 1( 1) 2472(
2641)
HT20/LGI MCS15 27.4 50.7 0.0 6 0( 0) 29(
60)
Total packet count:: ideal 2625 lookaround 31
Average A-MPDU length: 1.0
}}}
{{{
root@Dbox:~ cat /sys/kernel/debug/ieee80211/phy0/ath9k/dump_nfcal
Channel Noise Floor : -95
Chain | privNF | # Readings | NF Readings
0 -89 5 -89 -90 -90 -86 -87
1 -85 5 -84 -86 -86 -85 -84
2 -88 5 -85 -88 -88 -88 -85
}}}
--
Ticket URL: <https://dev.openwrt.org/ticket/17582#comment:22>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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