2,8 cubic
iperf3 -c dest
Connecting to host dest, port 5201
[ 4] local src port 49522 connected to dest port 5201
[ ID] Interval Transfer Bandwidth Retr Cwnd
[ 4] 0.00-1.00 sec 6.17 MBytes 51.7 Mbits/sec6 91.9 KBytes
[ 4] 1.00-2.00 sec 8.34 MBytes 70.0 Mbi
4.13-rc2 + tcp_output.c
- limit = max(2 * skb->truesize, sk->sk_pacing_rate >> 10);
+ limit = max(2 * skb->truesize, sk->sk_pacing_rate >> 7);
w/ cubic
% iperf3 -c dest
Connecting to host dest, port 5201
[ 4] local src port 47742 connected to dest port 5201
[ ID] Interval
Hi Eric,
This compares Cubic with BBR with 4.13-rc2 (which has a few new commits
to bbr.c):
wlan0: mtu 1500 qdisc mq state UP mode
DORMANT group default qlen 1000
$ cat /proc/sys/net/ipv4/tcp_congestion_control
cubic
$ iperf3 -c
Connecting to host , port 5201
[ 4] local port 35242 connected
Eric,
Is this patch the basis for a more permanent and general fix (it seems
not specific to ath10k)?
Thanks!
The patch produces a marked improvement with TCP from the local QCA6174
client to AP/remote.
4.12.0 (UDP; no patch)
% iperf3 -u -b 1000M -c remote
Connecting to host remote, port 5201
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