[FS#3674] WLAN transfer rate drops extreme under high load
OpenWrt Bugs
openwrt-bugs at lists.openwrt.org
Tue Mar 16 12:28:54 GMT 2021
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FS#3674 - WLAN transfer rate drops extreme under high load
User who did this - Gerry K (renegat)
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Today I tried it again with latest snapshot on Maginon WL-755 AC with the same result:
WLAN transfer rate drops than the routers wlan crashes completely.
Sometimes it comes back up after a while, sometimes not and you have to reset / powercycle it.
Cross check with original firmware for Maginon WL-755 AC:
Much better transfer speed in bidirectional test simultaneously, no drops, no crashes:
iperf -c 192.168.10.100 -t 300 -i 5 -d
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 128 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to 192.168.10.100, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 4] local 192.168.10.101 port 41534 connected with 192.168.10.100 port 5001
[ 5] local 192.168.10.101 port 5001 connected with 192.168.10.100 port 43866
[ ID] Interval Transfer Bandwidth
[ 4] 0.0- 5.0 sec 50.1 MBytes 84.1 Mbits/sec
[ 5] 0.0- 5.0 sec 42.1 MBytes 70.7 Mbits/sec
[ 4] 5.0-10.0 sec 47.8 MBytes 80.1 Mbits/sec
[ 5] 5.0-10.0 sec 47.7 MBytes 80.1 Mbits/sec
[ 4] 10.0-15.0 sec 46.5 MBytes 78.0 Mbits/sec
[ 5] 10.0-15.0 sec 49.1 MBytes 82.4 Mbits/sec
[ 4] 15.0-20.0 sec 52.0 MBytes 87.2 Mbits/sec
[ 5] 15.0-20.0 sec 43.2 MBytes 72.5 Mbits/sec
[ 4] 20.0-25.0 sec 52.5 MBytes 88.1 Mbits/sec
[ 5] 20.0-25.0 sec 42.9 MBytes 72.0 Mbits/sec
[ 4] 25.0-30.0 sec 53.4 MBytes 89.5 Mbits/sec
[ 5] 25.0-30.0 sec 41.7 MBytes 69.9 Mbits/sec
[ 4] 30.0-35.0 sec 53.5 MBytes 89.8 Mbits/sec
[ 5] 30.0-35.0 sec 41.9 MBytes 70.3 Mbits/sec
[ 4] 35.0-40.0 sec 54.9 MBytes 92.1 Mbits/sec
[ 5] 35.0-40.0 sec 41.4 MBytes 69.5 Mbits/sec
[ 4] 40.0-45.0 sec 53.1 MBytes 89.1 Mbits/sec
[ 5] 40.0-45.0 sec 40.2 MBytes 67.5 Mbits/sec
[ 4] 45.0-50.0 sec 53.4 MBytes 89.5 Mbits/sec
[ 5] 45.0-50.0 sec 42.8 MBytes 71.9 Mbits/sec
[ 4] 50.0-55.0 sec 52.0 MBytes 87.2 Mbits/sec
[ 5] 50.0-55.0 sec 43.5 MBytes 73.0 Mbits/sec
[ 4] 55.0-60.0 sec 54.0 MBytes 90.6 Mbits/sec
[ 5] 55.0-60.0 sec 41.3 MBytes 69.3 Mbits/sec
[ 4] 60.0-65.0 sec 52.0 MBytes 87.2 Mbits/sec
[ 5] 60.0-65.0 sec 43.8 MBytes 73.5 Mbits/sec
[ 4] 65.0-70.0 sec 53.2 MBytes 89.3 Mbits/sec
[ 5] 65.0-70.0 sec 43.3 MBytes 72.7 Mbits/sec
[ 4] 70.0-75.0 sec 52.4 MBytes 87.9 Mbits/sec
[ 5] 70.0-75.0 sec 43.8 MBytes 73.5 Mbits/sec
[ 4] 75.0-80.0 sec 53.5 MBytes 89.8 Mbits/sec
[ 5] 75.0-80.0 sec 45.4 MBytes 76.2 Mbits/sec
[ 4] 80.0-85.0 sec 52.0 MBytes 87.2 Mbits/sec
[ 5] 80.0-85.0 sec 45.6 MBytes 76.5 Mbits/sec
[ 4] 85.0-90.0 sec 52.2 MBytes 87.7 Mbits/sec
[ 5] 85.0-90.0 sec 41.2 MBytes 69.0 Mbits/sec
[ 4] 90.0-95.0 sec 49.2 MBytes 82.6 Mbits/sec
[ 5] 90.0-95.0 sec 44.3 MBytes 74.3 Mbits/sec
[ 4] 95.0-100.0 sec 50.6 MBytes 84.9 Mbits/sec
[ 5] 95.0-100.0 sec 44.9 MBytes 75.3 Mbits/sec
[ 4] 100.0-105.0 sec 53.5 MBytes 89.8 Mbits/sec
[ 5] 100.0-105.0 sec 39.8 MBytes 66.7 Mbits/sec
[ 4] 105.0-110.0 sec 53.8 MBytes 90.2 Mbits/sec
[ 5] 105.0-110.0 sec 42.5 MBytes 71.4 Mbits/sec
[ 4] 110.0-115.0 sec 50.6 MBytes 84.9 Mbits/sec
[ 5] 110.0-115.0 sec 45.2 MBytes 75.8 Mbits/sec
[ 4] 115.0-120.0 sec 51.9 MBytes 87.0 Mbits/sec
[ 5] 115.0-120.0 sec 43.6 MBytes 73.1 Mbits/sec
[ 4] 120.0-125.0 sec 54.9 MBytes 92.1 Mbits/sec
[ 5] 120.0-125.0 sec 40.1 MBytes 67.3 Mbits/sec
[ 4] 125.0-130.0 sec 51.9 MBytes 87.0 Mbits/sec
[ 5] 125.0-130.0 sec 42.1 MBytes 70.6 Mbits/sec
[ 4] 130.0-135.0 sec 54.9 MBytes 92.1 Mbits/sec
[ 5] 130.0-135.0 sec 40.5 MBytes 68.0 Mbits/sec
[ 4] 135.0-140.0 sec 56.1 MBytes 94.2 Mbits/sec
[ 5] 135.0-140.0 sec 40.3 MBytes 67.7 Mbits/sec
[ 4] 140.0-145.0 sec 50.6 MBytes 84.9 Mbits/sec
[ 5] 140.0-145.0 sec 43.8 MBytes 73.5 Mbits/sec
[ 4] 145.0-150.0 sec 52.0 MBytes 87.2 Mbits/sec
[ 5] 145.0-150.0 sec 42.5 MBytes 71.3 Mbits/sec
[ 4] 150.0-155.0 sec 54.8 MBytes 91.9 Mbits/sec
[ 5] 150.0-155.0 sec 41.2 MBytes 69.1 Mbits/sec
[ 4] 155.0-160.0 sec 53.8 MBytes 90.2 Mbits/sec
[ 5] 155.0-160.0 sec 41.6 MBytes 69.8 Mbits/sec
[ 4] 160.0-165.0 sec 56.1 MBytes 94.2 Mbits/sec
[ 5] 160.0-165.0 sec 42.4 MBytes 71.2 Mbits/sec
[ 4] 165.0-170.0 sec 53.5 MBytes 89.8 Mbits/sec
[ 5] 165.0-170.0 sec 42.8 MBytes 71.8 Mbits/sec
[ 4] 170.0-175.0 sec 48.9 MBytes 82.0 Mbits/sec
[ 5] 170.0-175.0 sec 47.5 MBytes 79.7 Mbits/sec
[ 4] 175.0-180.0 sec 45.1 MBytes 75.7 Mbits/sec
[ 5] 175.0-180.0 sec 48.7 MBytes 81.7 Mbits/sec
[ 4] 180.0-185.0 sec 52.0 MBytes 87.2 Mbits/sec
[ 5] 180.0-185.0 sec 43.4 MBytes 72.8 Mbits/sec
[ 4] 185.0-190.0 sec 53.4 MBytes 89.5 Mbits/sec
[ 5] 185.0-190.0 sec 42.0 MBytes 70.4 Mbits/sec
[ 4] 190.0-195.0 sec 53.8 MBytes 90.2 Mbits/sec
[ 5] 190.0-195.0 sec 42.9 MBytes 72.1 Mbits/sec
[ 4] 195.0-200.0 sec 54.6 MBytes 91.6 Mbits/sec
[ 5] 195.0-200.0 sec 42.3 MBytes 70.9 Mbits/sec
[ 4] 200.0-205.0 sec 50.6 MBytes 84.9 Mbits/sec
[ 5] 200.0-205.0 sec 45.9 MBytes 77.1 Mbits/sec
[ 4] 205.0-210.0 sec 50.5 MBytes 84.7 Mbits/sec
[ 5] 205.0-210.0 sec 46.3 MBytes 77.7 Mbits/sec
[ 4] 210.0-215.0 sec 53.4 MBytes 89.5 Mbits/sec
[ 5] 210.0-215.0 sec 43.2 MBytes 72.5 Mbits/sec
[ 4] 215.0-220.0 sec 53.5 MBytes 89.8 Mbits/sec
[ 5] 215.0-220.0 sec 41.8 MBytes 70.2 Mbits/sec
[ 4] 220.0-225.0 sec 52.0 MBytes 87.2 Mbits/sec
[ 5] 220.0-225.0 sec 41.8 MBytes 70.2 Mbits/sec
[ 4] 225.0-230.0 sec 53.5 MBytes 89.8 Mbits/sec
[ 5] 225.0-230.0 sec 43.7 MBytes 73.3 Mbits/sec
[ 4] 230.0-235.0 sec 52.2 MBytes 87.7 Mbits/sec
[ 5] 230.0-235.0 sec 44.1 MBytes 74.0 Mbits/sec
[ 4] 235.0-240.0 sec 55.0 MBytes 92.3 Mbits/sec
[ 5] 235.0-240.0 sec 36.0 MBytes 60.3 Mbits/sec
[ 4] 240.0-245.0 sec 56.0 MBytes 94.0 Mbits/sec
[ 5] 240.0-245.0 sec 34.4 MBytes 57.7 Mbits/sec
[ 4] 245.0-250.0 sec 54.9 MBytes 92.1 Mbits/sec
[ 5] 245.0-250.0 sec 39.5 MBytes 66.3 Mbits/sec
[ 4] 250.0-255.0 sec 53.4 MBytes 89.5 Mbits/sec
[ 5] 250.0-255.0 sec 42.0 MBytes 70.5 Mbits/sec
[ 4] 255.0-260.0 sec 52.0 MBytes 87.2 Mbits/sec
[ 5] 255.0-260.0 sec 41.2 MBytes 69.1 Mbits/sec
[ 4] 260.0-265.0 sec 51.9 MBytes 87.0 Mbits/sec
[ 5] 260.0-265.0 sec 44.6 MBytes 74.9 Mbits/sec
[ 4] 265.0-270.0 sec 53.5 MBytes 89.8 Mbits/sec
[ 5] 265.0-270.0 sec 44.4 MBytes 74.6 Mbits/sec
[ 4] 270.0-275.0 sec 54.4 MBytes 91.2 Mbits/sec
[ 5] 270.0-275.0 sec 41.1 MBytes 69.0 Mbits/sec
[ 4] 275.0-280.0 sec 50.6 MBytes 84.9 Mbits/sec
[ 5] 275.0-280.0 sec 46.2 MBytes 77.5 Mbits/sec
[ 4] 280.0-285.0 sec 50.5 MBytes 84.7 Mbits/sec
[ 5] 280.0-285.0 sec 45.4 MBytes 76.2 Mbits/sec
[ 4] 285.0-290.0 sec 53.6 MBytes 90.0 Mbits/sec
[ 5] 285.0-290.0 sec 41.1 MBytes 69.0 Mbits/sec
[ 4] 290.0-295.0 sec 51.0 MBytes 85.6 Mbits/sec
[ 5] 290.0-295.0 sec 43.3 MBytes 72.7 Mbits/sec
[ 4] 295.0-300.0 sec 52.0 MBytes 87.2 Mbits/sec
[ 4] 0.0-300.1 sec 3.08 GBytes 88.0 Mbits/sec
[ 5] 295.0-300.0 sec 44.7 MBytes 75.0 Mbits/sec
[ 5] 0.0-300.0 sec 2.52 GBytes 72.0 Mbits/sec
[SUM] 0.0-300.0 sec 2.56 GBytes 73.2 Mbits/sec
----------
More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=3674#comment9490
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