385/5000
Hello,
I try to optimize my wifi throughput.
When I upload a file (or with iperf teste) I get about 95 MBit / s - that's ok.
When I download a file, do I only get 65 Mbps / sec ???
A 5GHz test with Archer C7 as iperf server gives me: RX 180 MBits/sec, TX only 40 MBits/sec ???
iperf send logfile:
iperf 3.1.3
CYGWIN_NT-6.1 laptop 2.5.1(0.297/5/3) 2016-04-21 22:14 x86_64
Time: Sun, 12 Aug 2018 17:19:50 GMT
Connecting to host 192.168.178.120, port 5201
Cookie: laptop.1534094389.988272.02511959174
TCP MSS: 0 (default)
[ 5] local 192.168.178.4 port 57700 connected to 192.168.178.120 port 5201
Starting Test: protocol: TCP, 1 streams, 131072 byte blocks, omitting 0 seconds, 10 second test
[ ID] Interval Transfer Bandwidth
[ 5] 0.00-1.01 sec 20.8 MBytes 172 Mbits/sec
[ 5] 1.01-2.01 sec 21.5 MBytes 181 Mbits/sec
[ 5] 2.01-3.01 sec 20.9 MBytes 175 Mbits/sec
[ 5] 3.01-4.01 sec 22.1 MBytes 186 Mbits/sec
[ 5] 4.01-5.01 sec 21.2 MBytes 179 Mbits/sec
[ 5] 5.01-6.01 sec 21.9 MBytes 184 Mbits/sec
[ 5] 6.01-7.00 sec 21.0 MBytes 176 Mbits/sec
[ 5] 7.00-8.00 sec 21.6 MBytes 182 Mbits/sec
[ 5] 8.00-9.00 sec 21.4 MBytes 180 Mbits/sec
[ 5] 9.00-10.02 sec 22.5 MBytes 186 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
Test Complete. Summary Results:
[ ID] Interval Transfer Bandwidth
[ 5] 0.00-10.02 sec 215 MBytes 180 Mbits/sec sender
[ 5] 0.00-10.02 sec 215 MBytes 180 Mbits/sec receiver
CPU Utilization: local/sender 70.7% (1.2%u/69.5%s), remote/receiver 8.3% (0.5%u/7.8%s)
iperf Done.
iperf receive logfile:
iperf 3.1.3
CYGWIN_NT-6.1 laptop 2.5.1(0.297/5/3) 2016-04-21 22:14 x86_64
Time: Sun, 12 Aug 2018 17:21:06 GMT
Connecting to host 192.168.178.120, port 5201
Reverse mode, remote host 192.168.178.120 is sending
Cookie: laptop.1534094466.881807.58bcdf105ee
TCP MSS: 0 (default)
[ 5] local 192.168.178.4 port 57703 connected to 192.168.178.120 port 5201
Starting Test: protocol: TCP, 1 streams, 131072 byte blocks, omitting 0 seconds, 10 second test
[ ID] Interval Transfer Bandwidth
[ 5] 0.00-1.01 sec 5.07 MBytes 41.9 Mbits/sec
[ 5] 1.01-2.01 sec 4.76 MBytes 40.0 Mbits/sec
[ 5] 2.01-3.01 sec 4.43 MBytes 37.2 Mbits/sec
[ 5] 3.01-4.01 sec 4.46 MBytes 37.5 Mbits/sec
[ 5] 4.01-5.01 sec 4.61 MBytes 38.7 Mbits/sec
[ 5] 5.01-6.01 sec 4.59 MBytes 38.6 Mbits/sec
[ 5] 6.01-7.00 sec 4.40 MBytes 37.0 Mbits/sec
[ 5] 7.00-8.00 sec 4.83 MBytes 40.6 Mbits/sec
[ 5] 8.00-9.00 sec 4.80 MBytes 40.3 Mbits/sec
[ 5] 9.00-10.02 sec 4.92 MBytes 40.7 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
Test Complete. Summary Results:
[ ID] Interval Transfer Bandwidth Retr
[ 5] 0.00-10.02 sec 46.9 MBytes 39.3 Mbits/sec 0 sender
[ 5] 0.00-10.02 sec 46.9 MBytes 39.3 Mbits/sec receiver
CPU Utilization: local/receiver 13.8% (5.6%u/8.2%s), remote/sender 1.1% (0.2%u/0.9%s)
iperf Done.
Anoter 2.4GHz client is measured: RX 95 MBit/sec, TX only 25 MBit/sec.
What can cause this effect?
Uwe
could you check if there are many OFDM/CCK errors when doing a transfer?
run:
cat /sys/kernel/debug/ieee80211/phy0/ath9k/ani
in between your tests
Hi psyborg,
I have only the following files:
root@LEDE:~# ls /sys/kernel/debug/ieee80211/phy0/
ath10k/ misc statistics/
fragmentation_threshold netdev:wlan0/ total_ps_buffered
ht40allow_map power user_power
hwflags queues wep_iv
keys/ rts_threshold
long_retry_limit short_retry_limit
root@LEDE:~# cat /sys/kernel/debug/ieee80211/phy0/ath10k/
ani_enable fw_reset_stats reg_addr
cal_data fw_stats reg_value
chip_id htt_max_amsdu_ampdu simulate_fw_crash
dfs_block_radar_events htt_stats_mask spectral_bins
dfs_simulate_radar mem_value spectral_count
dfs_stats nf_cal_period spectral_scan0
fw_checksums peer_stats spectral_scan_ctl
fw_crash_dump pktlog_filter tpc_stats
fw_dbglog quiet_period wmi_services
Uwe
try 2.4GHz, i guess it should be phy1 on your device
Hello,
here are some stats between two file receive runs (5GHz, 300Mbit connection rate):
Uwe
ok, that is for receive which you said works fine. can you post that statistics before/after transmit test? and also for 2.4GHz?
Hi psyborg,
In my first post I said "downloading" a file (Archer send data) makes problems.
I have corrected "RX/TX" in my first post.
This are the 2.4GHz stats:
Uwe
Archer C7 v2 is supported since BB r40463. do you experience throughput issues with barrier breaker / chaos calmer builds?
Hello,
I tried: 17.01.5, 18.06 and a speed optimized build ...
All with the same results.
At the moment I am using LEDE Reboot 17.01.5 r3919-38e704be71
Now I've tried Chaos Calmer 15.05.1:
With 5GHz I get RX: 165 Mbps, TX: 115 Mbps (iperf on Archer)
RX is slower, but TX faster ...
The actual file transfer speed is comparable to newer builds.
Uwe
psyborg
August 13, 2018, 11:00am
10
i think it might be general problem with ath9k driver (my device has 2.4 wifi only).
i've backported to barrier breaker and the issue persists. TX avg. 105Mbps RX avg. 180Mbps compared to my snapshot build on 4.9.111 kernel TX avg. 120Mbps RX avg. 214Mbps
update: iperf results
TX with 5 and 10 streams:
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[ 4] local 192.168.1.2 port 5001 connected with 192.168.1.1 port 47070
[ 5] local 192.168.1.2 port 5001 connected with 192.168.1.1 port 47072
[ 6] local 192.168.1.2 port 5001 connected with 192.168.1.1 port 47074
[ 7] local 192.168.1.2 port 5001 connected with 192.168.1.1 port 47076
[ 11] local 192.168.1.2 port 5001 connected with 192.168.1.1 port 47084
[ 10] local 192.168.1.2 port 5001 connected with 192.168.1.1 port 47082
[ 9] local 192.168.1.2 port 5001 connected with 192.168.1.1 port 47080
[ 8] local 192.168.1.2 port 5001 connected with 192.168.1.1 port 47078
[ 12] local 192.168.1.2 port 5001 connected with 192.168.1.1 port 47086
[ 13] local 192.168.1.2 port 5001 connected with 192.168.1.1 port 47088
[ ID] Interval Transfer Bandwidth
[ 5] 0.0-20.1 sec 27.1 MBytes 11.3 Mbits/sec
[ 8] 0.0-20.1 sec 27.1 MBytes 11.3 Mbits/sec
[ 7] 0.0-20.1 sec 27.1 MBytes 11.3 Mbits/sec
[ 11] 0.0-20.1 sec 27.1 MBytes 11.3 Mbits/sec
[ 10] 0.0-20.1 sec 27.1 MBytes 11.3 Mbits/sec
[ 9] 0.0-20.1 sec 27.1 MBytes 11.3 Mbits/sec
[ 12] 0.0-20.1 sec 27.1 MBytes 11.3 Mbits/sec
[ 13] 0.0-20.1 sec 27.1 MBytes 11.3 Mbits/sec
[ 4] 0.0-20.2 sec 27.3 MBytes 11.3 Mbits/sec
[ 6] 0.0-20.2 sec 27.1 MBytes 11.3 Mbits/sec
[SUM] 0.0-20.2 sec 271 MBytes 113 Mbits/sec
[ 6] local 192.168.1.2 port 5001 connected with 192.168.1.1 port 47096
[ 5] local 192.168.1.2 port 5001 connected with 192.168.1.1 port 47094
[ 4] local 192.168.1.2 port 5001 connected with 192.168.1.1 port 47092
[ 14] local 192.168.1.2 port 5001 connected with 192.168.1.1 port 47090
[ 7] local 192.168.1.2 port 5001 connected with 192.168.1.1 port 47098
[ 6] 0.0-20.1 sec 54.6 MBytes 22.8 Mbits/sec
[ 5] 0.0-20.1 sec 54.8 MBytes 22.9 Mbits/sec
[ 7] 0.0-20.1 sec 54.6 MBytes 22.8 Mbits/sec
[ 4] 0.0-20.1 sec 55.0 MBytes 23.0 Mbits/sec
[ 14] 0.0-20.1 sec 54.8 MBytes 22.9 Mbits/sec
[SUM] 0.0-20.1 sec 274 MBytes 114 Mbits/sec
RX with 10 streams:
------------------------------------------------------------
Client connecting to 192.168.1.1, TCP port 5001
TCP window size: 23.5 KByte (default)
------------------------------------------------------------
[ 4] local 192.168.1.2 port 52398 connected with 192.168.1.1 port 5001
[ 5] local 192.168.1.2 port 52401 connected with 192.168.1.1 port 5001
[ 6] local 192.168.1.2 port 52402 connected with 192.168.1.1 port 5001
[ 9] local 192.168.1.2 port 52404 connected with 192.168.1.1 port 5001
[ 11] local 192.168.1.2 port 52407 connected with 192.168.1.1 port 5001
[ 8] local 192.168.1.2 port 52405 connected with 192.168.1.1 port 5001
[ 10] local 192.168.1.2 port 52406 connected with 192.168.1.1 port 5001
[ 7] local 192.168.1.2 port 52403 connected with 192.168.1.1 port 5001
[ 3] local 192.168.1.2 port 52399 connected with 192.168.1.1 port 5001
[ 12] local 192.168.1.2 port 52408 connected with 192.168.1.1 port 5001
[ ID] Interval Transfer Bandwidth
[ 5] 0.0- 1.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 11] 0.0- 1.0 sec 2.38 MBytes 19.9 Mbits/sec
[ 10] 0.0- 1.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 7] 0.0- 1.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 4] 0.0- 1.0 sec 2.25 MBytes 18.9 Mbits/sec
[ 3] 0.0- 1.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 9] 0.0- 1.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 8] 0.0- 1.0 sec 2.38 MBytes 19.9 Mbits/sec
[ 12] 0.0- 1.0 sec 2.00 MBytes 16.8 Mbits/sec
[ 6] 0.0- 1.0 sec 2.50 MBytes 21.0 Mbits/sec
[SUM] 0.0- 1.0 sec 24.5 MBytes 206 Mbits/sec
[ 11] 1.0- 2.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 4] 1.0- 2.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 9] 1.0- 2.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 7] 1.0- 2.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 12] 1.0- 2.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 5] 1.0- 2.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 8] 1.0- 2.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 3] 1.0- 2.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 6] 1.0- 2.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 10] 1.0- 2.0 sec 2.75 MBytes 23.1 Mbits/sec
[SUM] 1.0- 2.0 sec 26.5 MBytes 222 Mbits/sec
[ 5] 2.0- 3.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 10] 2.0- 3.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 6] 2.0- 3.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 4] 2.0- 3.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 9] 2.0- 3.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 8] 2.0- 3.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 12] 2.0- 3.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 3] 2.0- 3.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 7] 2.0- 3.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 11] 2.0- 3.0 sec 2.75 MBytes 23.1 Mbits/sec
[SUM] 2.0- 3.0 sec 25.8 MBytes 216 Mbits/sec
[ 11] 3.0- 4.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 7] 3.0- 4.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 5] 3.0- 4.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 10] 3.0- 4.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 3] 3.0- 4.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 6] 3.0- 4.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 8] 3.0- 4.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 4] 3.0- 4.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 12] 3.0- 4.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 9] 3.0- 4.0 sec 2.62 MBytes 22.0 Mbits/sec
[SUM] 3.0- 4.0 sec 26.1 MBytes 219 Mbits/sec
[ 7] 4.0- 5.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 4] 4.0- 5.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 5] 4.0- 5.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 10] 4.0- 5.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 9] 4.0- 5.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 8] 4.0- 5.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 11] 4.0- 5.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 3] 4.0- 5.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 12] 4.0- 5.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 6] 4.0- 5.0 sec 2.62 MBytes 22.0 Mbits/sec
[SUM] 4.0- 5.0 sec 26.0 MBytes 218 Mbits/sec
[ 6] 5.0- 6.0 sec 2.38 MBytes 19.9 Mbits/sec
[ 8] 5.0- 6.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 10] 5.0- 6.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 5] 5.0- 6.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 9] 5.0- 6.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 11] 5.0- 6.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 12] 5.0- 6.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 7] 5.0- 6.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 3] 5.0- 6.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 4] 5.0- 6.0 sec 2.62 MBytes 22.0 Mbits/sec
[SUM] 5.0- 6.0 sec 25.4 MBytes 213 Mbits/sec
[ 4] 6.0- 7.0 sec 2.38 MBytes 19.9 Mbits/sec
[ 11] 6.0- 7.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 12] 6.0- 7.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 5] 6.0- 7.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 6] 6.0- 7.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 8] 6.0- 7.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 10] 6.0- 7.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 7] 6.0- 7.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 3] 6.0- 7.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 9] 6.0- 7.0 sec 2.62 MBytes 22.0 Mbits/sec
[SUM] 6.0- 7.0 sec 26.1 MBytes 219 Mbits/sec
[ 11] 7.0- 8.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 3] 7.0- 8.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 9] 7.0- 8.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 4] 7.0- 8.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 6] 7.0- 8.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 10] 7.0- 8.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 8] 7.0- 8.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 7] 7.0- 8.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 5] 7.0- 8.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 12] 7.0- 8.0 sec 2.62 MBytes 22.0 Mbits/sec
[SUM] 7.0- 8.0 sec 25.9 MBytes 217 Mbits/sec
[ 6] 8.0- 9.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 11] 8.0- 9.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 4] 8.0- 9.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 8] 8.0- 9.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 7] 8.0- 9.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 12] 8.0- 9.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 3] 8.0- 9.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 5] 8.0- 9.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 9] 8.0- 9.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 10] 8.0- 9.0 sec 2.62 MBytes 22.0 Mbits/sec
[SUM] 8.0- 9.0 sec 25.8 MBytes 216 Mbits/sec
[ 7] 9.0-10.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 6] 9.0-10.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 9] 9.0-10.0 sec 2.38 MBytes 19.9 Mbits/sec
[ 4] 9.0-10.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 11] 9.0-10.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 8] 9.0-10.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 10] 9.0-10.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 5] 9.0-10.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 3] 9.0-10.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 12] 9.0-10.0 sec 2.75 MBytes 23.1 Mbits/sec
[SUM] 9.0-10.0 sec 26.0 MBytes 218 Mbits/sec
[ 4] 10.0-11.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 11] 10.0-11.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 3] 10.0-11.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 5] 10.0-11.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 12] 10.0-11.0 sec 2.38 MBytes 19.9 Mbits/sec
[ 8] 10.0-11.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 10] 10.0-11.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 7] 10.0-11.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 6] 10.0-11.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 9] 10.0-11.0 sec 2.75 MBytes 23.1 Mbits/sec
[SUM] 10.0-11.0 sec 25.9 MBytes 217 Mbits/sec
[ 5] 11.0-12.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 3] 11.0-12.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 9] 11.0-12.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 8] 11.0-12.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 10] 11.0-12.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 7] 11.0-12.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 6] 11.0-12.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 12] 11.0-12.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 4] 11.0-12.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 11] 11.0-12.0 sec 2.75 MBytes 23.1 Mbits/sec
[SUM] 11.0-12.0 sec 26.4 MBytes 221 Mbits/sec
[ 6] 12.0-13.0 sec 2.38 MBytes 19.9 Mbits/sec
[ 5] 12.0-13.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 11] 12.0-13.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 8] 12.0-13.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 10] 12.0-13.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 7] 12.0-13.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 3] 12.0-13.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 12] 12.0-13.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 4] 12.0-13.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 9] 12.0-13.0 sec 2.62 MBytes 22.0 Mbits/sec
[SUM] 12.0-13.0 sec 25.0 MBytes 210 Mbits/sec
[ 4] 13.0-14.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 5] 13.0-14.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 6] 13.0-14.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 12] 13.0-14.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 9] 13.0-14.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 11] 13.0-14.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 8] 13.0-14.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 7] 13.0-14.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 10] 13.0-14.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 3] 13.0-14.0 sec 2.62 MBytes 22.0 Mbits/sec
[SUM] 13.0-14.0 sec 26.1 MBytes 219 Mbits/sec
[ 3] 14.0-15.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 12] 14.0-15.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 9] 14.0-15.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 11] 14.0-15.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 5] 14.0-15.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 4] 14.0-15.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 6] 14.0-15.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 8] 14.0-15.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 7] 14.0-15.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 10] 14.0-15.0 sec 2.50 MBytes 21.0 Mbits/sec
[SUM] 14.0-15.0 sec 25.9 MBytes 217 Mbits/sec
[ 8] 15.0-16.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 3] 15.0-16.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 5] 15.0-16.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 9] 15.0-16.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 10] 15.0-16.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 7] 15.0-16.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 4] 15.0-16.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 12] 15.0-16.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 6] 15.0-16.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 11] 15.0-16.0 sec 2.62 MBytes 22.0 Mbits/sec
[SUM] 15.0-16.0 sec 25.9 MBytes 217 Mbits/sec
[ 5] 16.0-17.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 6] 16.0-17.0 sec 2.38 MBytes 19.9 Mbits/sec
[ 9] 16.0-17.0 sec 2.38 MBytes 19.9 Mbits/sec
[ 10] 16.0-17.0 sec 2.38 MBytes 19.9 Mbits/sec
[ 12] 16.0-17.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 11] 16.0-17.0 sec 2.38 MBytes 19.9 Mbits/sec
[ 8] 16.0-17.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 7] 16.0-17.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 3] 16.0-17.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 4] 16.0-17.0 sec 2.50 MBytes 21.0 Mbits/sec
[SUM] 16.0-17.0 sec 25.0 MBytes 210 Mbits/sec
[ 4] 17.0-18.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 11] 17.0-18.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 8] 17.0-18.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 7] 17.0-18.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 3] 17.0-18.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 12] 17.0-18.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 6] 17.0-18.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 9] 17.0-18.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 5] 17.0-18.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 10] 17.0-18.0 sec 2.75 MBytes 23.1 Mbits/sec
[SUM] 17.0-18.0 sec 26.0 MBytes 218 Mbits/sec
[ 5] 18.0-19.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 9] 18.0-19.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 11] 18.0-19.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 7] 18.0-19.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 8] 18.0-19.0 sec 2.38 MBytes 19.9 Mbits/sec
[ 6] 18.0-19.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 4] 18.0-19.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 3] 18.0-19.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 12] 18.0-19.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 10] 18.0-19.0 sec 2.62 MBytes 22.0 Mbits/sec
[SUM] 18.0-19.0 sec 25.5 MBytes 214 Mbits/sec
[ 5] 19.0-20.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 5] 0.0-20.0 sec 52.0 MBytes 21.8 Mbits/sec
[ 8] 19.0-20.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 8] 0.0-20.0 sec 51.5 MBytes 21.6 Mbits/sec
[ 7] 19.0-20.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 7] 0.0-20.0 sec 52.5 MBytes 22.0 Mbits/sec
[ 12] 19.0-20.0 sec 2.62 MBytes 22.0 Mbits/sec
[ 12] 0.0-20.1 sec 51.4 MBytes 21.5 Mbits/sec
[ 3] 19.0-20.0 sec 2.50 MBytes 21.0 Mbits/sec
[ 3] 0.0-20.1 sec 51.5 MBytes 21.5 Mbits/sec
[ 4] 19.0-20.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 4] 0.0-20.1 sec 51.4 MBytes 21.4 Mbits/sec
[ 11] 19.0-20.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 11] 0.0-20.1 sec 51.5 MBytes 21.5 Mbits/sec
[ 6] 19.0-20.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 6] 0.0-20.1 sec 51.8 MBytes 21.6 Mbits/sec
[ 9] 19.0-20.0 sec 2.75 MBytes 23.1 Mbits/sec
[ 9] 0.0-20.1 sec 52.1 MBytes 21.7 Mbits/sec
[ 10] 19.0-20.0 sec 2.62 MBytes 22.0 Mbits/sec
[SUM] 19.0-20.0 sec 26.6 MBytes 223 Mbits/sec
[ 10] 0.0-20.1 sec 51.9 MBytes 21.6 Mbits/sec
[SUM] 0.0-20.1 sec 518 MBytes 216 Mbits/sec
peak speed observed during these tests reached 228Mbps. this is 2.4GHz 300Mbps PHY. QCA9531+AR9462 combination
Hello,
I changed the ath10k firmware to a version from https://www.candelatech.com : firmware-2-ct-full-community-20.bin
Now I can reach Archer C7v2 with TX 100 MBits/s and RX 180 MBits/s.
Real "download speed" (filetransfer) is still only 65 MBits/sec. 8-(
Uwe
jeff
August 14, 2018, 5:43pm
12
Throughput under real-world conditions is always a fraction of the symbol rate. There are always frames associated with ongoing AP operation, ACK packets, and any other traffic. There is also overhead in both the TCP framing, as well as 802.11 framing.
Hi jeff,
I know, but I am wondering why TX- and RX-speed are differing so much.
In my case the download speed belongs to the TX-rate.
Connect-rate is 300 MBits sec. And 300 Mbits/s vs. 65 MBits/s is IMHO a bad ratio.
Uwe.
Also experience pretty slow speeds using iperf
. I've heard though that iperf
is pretty CPU intensive over iperf3
given the CPU on the Archer c7 I'm curious if that is the bottleneck here?
psyborg
August 30, 2018, 11:19pm
15
you could try set auto distance with dynack, in my case it only improved single/dual TCP stream as much as it would improve by tuning network stack buffers..
i've tried running the tests from bodhi linux 5.0 (kernel 4.15-020)
TX was about 140Mbps with 2 streams and auto distance, 3 or more streams would cause throughput drop to 130Mbps.. but on this linux version RX was very bad mostly about 130Mbps and sometimes even below 100Mbps..
i've also tried stock tp-link firmware, which i extracted with fmk installed iperf and repacked, the results were following:
on my current linux both TX and RX about 150Mbps, on bodhi linux RX bad gain 110Mbps, but TX went up to average 175Mbps with peak at 182Mbps using 10 iperf streams.
so it's definetly ath9k bug on newer kernels
@uweklatt according to this post https://www.spinics.net/lists/linux-wireless/msg177329.html
you should install other firmware, precisely 10.2.4.70.61-2I for your 5GHz wifi