I notice performance issues when using the physical port /dev/ttyS2. I get expected performance when using /dev/ttyUSB0 (same performance as on windows).
To be more explicit: I am sending 2 requests quickly and I get a 1 second delay between first request starting and second request starting, it seems to be blocking.
On USB controller, the delay is very low maybe 1ms.
Is there anything that could explain this performance issue? Are there parameters I can try to play with ?
Thanks for any help,
Environment:
Unix
RS485, baudrate 57600, parity none, stopbits 1
Spring App, Java 17
jserialcomm 2.9.3
result of stty -F /dev/ttys2
speed 57600 baud; line = 0; min = 0; time = 5; -brkint -icrnl -imaxbel -opost -isig -icanon -iexten -echo
result of stty -F /dev/ttyUSB0
speed 57600 baud; line = 0; min = 0; time = 5; -brkint -icrnl -imaxbel -opost -isig -icanon -iexten -echo
Hello,
I am doing modbus request based on jserialComm.
I notice performance issues when using the physical port /dev/ttyS2. I get expected performance when using /dev/ttyUSB0 (same performance as on windows). To be more explicit: I am sending 2 requests quickly and I get a 1 second delay between first request starting and second request starting, it seems to be blocking. On USB controller, the delay is very low maybe 1ms.
Is there anything that could explain this performance issue? Are there parameters I can try to play with ?
Thanks for any help,
Environment:
result of stty -F /dev/ttys2
speed 57600 baud; line = 0; min = 0; time = 5; -brkint -icrnl -imaxbel -opost -isig -icanon -iexten -echoresult of stty -F /dev/ttyUSB0
speed 57600 baud; line = 0; min = 0; time = 5; -brkint -icrnl -imaxbel -opost -isig -icanon -iexten -echo