Upgraded PI4TUE to fldigi-3.11.1
The server was still running with 3.04, because there is an anomaly in fldigi-3.10,
which eats 95% CPU on the server. 3.04 took only 5% CPU.
So I was eager to install fldigi-3.11.1. It turned out that also 3.11.1 eats 95% CPU, resulting in
problems to decode a PSk250 stream which happens if I try to upload an email with
an attachment.
Next thing I tried was to run 3.11.1 under Xvfb. CPU load dropped to under 5%, which means
that there is a serious problem with how fldigi interfaces with the X-server.
I don't get this problem on the desktop, which has a much faster CPU (the CPU
of the server is 2 GHz).
It looks like the problem occurs especially when fldigi runs under a vnc
session.
Anyway, it runs fine now under Xvfb.
To start fldigi under Xvfb do the following in a terminal (use screen as your
display manager):
Xvfb -ac :99
fldigi -display :99 &
fldigi is now running headless and takes only 5% CPU, leading to a much better
decoding of PSK250
73,
Rein PA0R
