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Re: [sumo-user] fcd-output: speed issue
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Hi Daniel,
I could not reproduce it. I did a small test generating an fcd file of
about 350MB resulting in a gpsdat file of about 18MB. Both runs took
about two minutes on my PC (Windows 7 with Python 2.7.11). What is your
platform? There may be some interferring virus scanner or firewall
watching your sockets.
Best regards,
Michael
Am 16.03.2018 um 10:14 schrieb Jakob Erdmann:
> Hello,
> i haven't personally used this method of operation so I have no data to
> compare too. However, your finding does not surprise me insofar as sumo
> still generates the full amount of xml output. Most likely the socket
> buffering parameters are not optimized for speed as they are for writing
> to disk. I'm forwarding this to my colleague who may be able to help
> with setting the correct parameters.
>
> regards,
> Jakob
>
> 2018-03-16 8:23 GMT+01:00 Thuresson, Daniel
> <daniel.thuresson.2@xxxxxxxxxxxxx
> <mailto:daniel.thuresson.2@xxxxxxxxxxxxx>>:
>
> Hi,____
>
> __ __
>
> I tried to use the fcd-output and write data to a port. The reason
> for this is to avoid large files, which I have assumed slows down
> the computation.____
>
> __ __
>
> I do this by first starting python in a command prompt:____
>
> c:\temp\SUMO_RESULTS_automized\Simulations>python traceExporter.py
> –fcd-input 43214 --delta-t 1 --begin 3000 --gpsdat-output test.txt____
>
> __ __
>
> Then I start SUMO with:____
>
> SumoVersion --time-to-teleport 80 --fcd-output localhost:43214
> --step-length 0.1 -b 0 -e 4501 -n netPath -r PHEMrouPath -a addPath
> --start --quit-on-end &____
>
> __ __
>
> My problem with this is that the simulation runs significantly
> slower than when running without fcd-output and creating a very
> large file. ____
>
> Have I done something wrong? ____
>
> __ __
>
> Rgds /Daniel____
>
>
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