Joechen, Sorry about that.
If i change to_double to to_long, look like the above reply. The bandwidth_kb will be 0 for all case.
when
has_field(“spendtime”)
then
let time = to_double($message.spendtime);
let size = to_double($message.bytes);
let bandwidth = size / time ;
let bandwidth_kb = to_long(bandwidth / 1024.0);
set_field(“speed_bytes_sec”, bandwidth);
set_field(“speed_kb_sec”, bandwidth_kb);
end
speed_bytes_sec 67548.1865284974
speed_kb_sec 0