I’m using MAVSDK to send a custom message at a high frequency (1kHz) to a PX4 SITL simulation running on the same machine. However, using the mavlink status command, I can see that the received message rate is capped at 25Hz and most of the packets are lost:
instance #1:
GCS heartbeat valid
mavlink chan: #1
type: GENERIC LINK OR RADIO
flow control: OFF
rates:
tx: 27988.0 B/s
txerr: 0.0 B/s
tx rate mult: 1.000
tx rate max: 4000000 B/s
rx: 28871.5 B/s
rx loss: 0.6%
Received Messages:
sysid:245, compid:190, Total: 13088 (lost: 7358)
msgid: 4, Rate: 1.4 Hz, last 0.14s ago
msgid: 0, Rate: 1.0 Hz, last 0.16s ago
msgid: 446, Rate: 25.0 Hz, last 0.00s ago
FTP enabled: YES, TX enabled: YES
mode: Onboard
MAVLink version: 2
transport protocol: UDP (14580, remote port: 14540)
Broadcast enabled: NO
partner IP: 127.0.0.1
ping statistics:
last: 0.00 ms
mean: 0.00 ms
max: 0.00 ms
min: 0.00 ms
dropped packets: 0
Is there a way to increase the rate at which the messages are sent to/received by PX4?