Greetings all,
[email protected] schrieb:
I have 5MB download speed here, so perhaps an issue with the number of
users at present.
This is what I guess, too. If more than two or three users request the
same image (spectrogram), the file is created "new" (with slightly
different contents), and the first user receives for example the first
half of an older file, and the second half of a newer file which was
created when a new file request arrives.
Similar effects can be seen on other grabbers (though less frequent),
when the file is updated just in the moment it is downloaded. Making the
refresh interval longer will reduce the effect, but not cure it.
The only cure I can think of at the moment is to produce a new filename
for every new request, and delete old files only if they are not used
any longer. I will try to reproduce the effect locally (with a few PCs
in the local network).
I will let you know as soon as an improved version is available. Until
then, the easiest solution would be to periodically upload the waterfall
image via FTP to a server with a larger bandwidth (remember, the upload
bitrate of a "home" ADSL connection is much lower than the download
bitrate).
Cheers,
Wolf .
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