[FS#508] ath9k / poor performance + drops with r3426 (after airtime-fairness fixup)
LEDE Bugs
lede-bugs at lists.infradead.org
Mon Feb 13 07:36:35 PST 2017
The following task has a new comment added:
FS#508 - ath9k / poor performance + drops with r3426 (after airtime-fairness fixup)
User who did this - Bastian Bittorf (bittorf)
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switching off airtime fairness also "fixes" it:
root at F36-stube:~ :) for F in /sys/kernel/debug/ieee80211/phy*/*/airtime_flags; do echo 0 >$F; done
root at F36-stube:~ :) cat /sys/kernel/debug/ieee80211/phy1/netdev:wlan1-1/stations/00:1e:65:94:22:52/rc_stats
best ____________rate__________ ________statistics________ _____last____ ______sum-of________
mode guard # rate [name idx airtime max_tp] [avg(tp) avg(prob) sd(prob)] [retry|suc|att] [#success | #attempts]
CCK LP 1 1.0M 120 10548 0.0 0.0 95.6 20.2 0 0 0 674 1354
CCK LP 1 2.0M 121 5476 0.0 0.0 100.0 0.0 0 0 0 1 1
CCK LP 1 5.5M 122 2411 2.4 2.4 99.9 0.0 2 0 0 69458 95654
CCK LP 1 11.0M 123 1535 4.8 4.8 95.3 19.7 3 0 0 29886 33765
HT20 LGI 1 MCS0 0 1477 4.8 4.8 96.0 13.6 3 0 0 101577 222729
HT20 LGI 1 MCS1 1 739 9.7 9.7 96.2 14.4 4 0 0 24951 42722
HT20 LGI 1 MCS2 2 493 14.6 14.6 95.0 18.7 5 0 0 967 2800
HT20 LGI 1 MCS3 3 369 17.0 17.0 95.2 17.6 5 0 0 432 2777
HT20 LGI 1 B MCS4 4 246 24.4 24.4 99.8 0.0 5 0 0 879 1606
HT20 LGI 1 MCS5 5 185 29.2 12.2 37.5 48.3 5 0 0 35 750
HT20 LGI 1 D MCS6 6 164 31.7 24.4 69.4 44.9 5 0 0 518 1272
HT20 LGI 1 MCS7 7 148 34.1 21.9 56.2 47.0 5 0 0 1746 2767
HT20 LGI 2 MCS8 10 739 9.7 9.7 95.8 14.3 4 0 0 39271 68323
HT20 LGI 2 MCS9 11 369 17.0 17.0 96.1 16.6 5 0 0 14378 38676
HT20 LGI 2 MCS10 12 246 24.4 17.0 62.9 48.1 5 0 0 693 1868
HT20 LGI 2 MCS11 13 185 29.2 21.9 64.4 47.7 5 0 0 6266 9675
HT20 LGI 2 MCS12 14 123 36.6 0.0 0.0 0.0 6 0 0 299 1347
HT20 LGI 2 MCS13 15 93 43.9 7.3 18.7 38.9 6 0 0 900 2922
HT20 LGI 2 MCS14 16 82 46.3 0.0 0.0 0.0 0 0 0 4 512
HT20 LGI 2 MCS15 17 74 48.8 0.0 0.0 1.5 5 0 0 10 629
HT20 SGI 1 MCS0 30 1329 4.8 4.8 96.0 19.2 3 0 0 725 2055
HT20 SGI 1 MCS1 31 665 9.7 9.7 96.2 16.6 4 0 0 1576 5820
HT20 SGI 1 MCS2 32 443 14.6 14.6 95.2 19.5 5 0 0 495 2786
HT20 SGI 1 MCS3 33 332 19.5 19.5 96.3 10.1 5 0 0 1635 4225
HT20 SGI 1 C MCS4 34 222 26.8 24.4 82.6 21.8 5 0 0 1492 2277
HT20 SGI 1 MCS5 35 166 31.7 12.2 36.4 48.0 5 0 0 20 525
HT20 SGI 1 MCS6 36 148 34.1 21.9 60.4 38.4 5 0 0 2038 3011
HT20 SGI 1 A P MCS7 37 133 36.6 36.6 91.8 15.1 6 2 2 7464 9550
HT20 SGI 2 MCS8 40 665 9.7 9.7 95.6 16.2 4 0 0 1912 5334
HT20 SGI 2 MCS9 41 332 19.5 19.5 95.5 13.5 5 0 0 2879 10700
HT20 SGI 2 MCS10 42 222 26.8 17.0 57.8 49.2 5 0 0 2662 4654
HT20 SGI 2 MCS11 43 166 31.7 19.5 53.8 48.6 5 0 0 8438 11419
HT20 SGI 2 MCS12 44 111 39.0 0.0 0.0 0.0 6 0 0 406 1625
HT20 SGI 2 MCS13 45 83 46.3 0.0 0.0 0.0 6 0 0 446 1977
HT20 SGI 2 MCS14 46 74 48.8 0.0 0.0 0.0 6 0 0 12 596
HT20 SGI 2 MCS15 47 67 51.2 0.0 0.0 0.0 6 0 0 64 885
Total packet count:: ideal 312016 lookaround 16242
Average # of aggregated frames per A-MPDU: 1.0
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=508#comment1780
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