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| author | Bitterblue Smith <rtl8821cerfe2@gmail.com> | 2024-12-19 00:33:20 +0200 |
|---|---|---|
| committer | Ping-Ke Shih <pkshih@realtek.com> | 2024-12-23 16:05:39 +0800 |
| commit | e9048e2935f7d797c2ba047c15b705b57c2fa99a (patch) | |
| tree | f5b0926b42562838834f17da6cd59bcbfdd22c78 /tools/perf/scripts/python/stackcollapse.py | |
| parent | 74a72c367573ad521becf6cc4d649e14387b3c64 (diff) | |
wifi: rtw88: usb: Copy instead of cloning the RX skb
"iperf3 -c 192.168.0.1 -R --udp -b 0" shows about 40% of datagrams
are lost. Many torrents don't download faster than 3 MiB/s, probably
because the Bittorrent protocol uses UDP. This is somehow related to
the use of skb_clone() in the RX path.
Don't use skb_clone(). Instead allocate a new skb for each 802.11 frame
received and copy the data from the big (32768 byte) skb.
With this patch, "iperf3 -c 192.168.0.1 -R --udp -b 0" shows only 1-2%
of datagrams are lost, and torrents can reach download speeds of 36
MiB/s.
Tested with RTL8812AU and RTL8822CU.
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/8c9d4f9d-ebd8-4dc0-a0c4-9ebe430521dd@gmail.com
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions