Orange Pi Zero UDP Problem

[kolegs]

Hi,

 

I am trying to create some kind of audio streaming server on orange pi zero. I've installed Qt5 and tried to start streaming audio using UDP datagrams.

The problem is that sending one datagram takes a lot of time(~50-100ms) so there are interrupts in audio streaming.

 

What is more I found out writing datagram gives me this message in dmesg:

Loading kernel module for a network device with CAP_SYS_MODULE (deprecated).  Use CAP_NET_ADMIN and alias netdev- instead.

 

I am using Xenial with

Linux orangepizero 3.4.113-sun8i #10 SMP PREEMPT Thu Feb 23 19:55:00 CET 2017 armv7l GNU/Linux

 

That is my lsmod output:

usbtv                   9551  0 
videobuf2_vmalloc       2336  1 usbtv
videobuf2_memops        1819  1 videobuf2_vmalloc
videobuf2_core         18070  1 usbtv
ir_lirc_codec           3650  0 
lirc_dev                7834  1 ir_lirc_codec
ir_mce_kbd_decoder      2885  0 
ir_sanyo_decoder        1480  0 
ir_sony_decoder         1422  0 
ir_jvc_decoder          1452  0 
ir_rc6_decoder          1941  0 
ir_rc5_decoder          1412  0 
ir_nec_decoder          1556  0 
sunxi_cir               1601  0 
rc_core                12727  10 ir_lirc_codec,ir_rc5_decoder,ir_nec_decoder,ir_sony_decoder,sunxi_cir,ir_mce_kbd_decoder,ir_jvc_decoder,ir_rc6_decoder,ir_sanyo_decoder
pcf8591                 3363  0 
bmp085                  3487  0 
xradio_wlan           210530  0 
g_serial               27617  2 
mac80211              358445  1 xradio_wlan
btrfs                 712409  0 

 

Thanks in advance.

[kolegs]

Oh right, fixed recompilling Qt on my own. Probably some problem with Qt using another kernel module in precompilled Qt from repositories.

 

After my own compilation sending UDP package takes usually around 1ms time.