Jakob,
perhaps I was a bit misunderstanding. Therefore I point out mor clearly that
without using the -c command line option, no summary is generated. At the
moment I cannot say whether this condition also applies to statistics output,
since I did the tests on my office computer.
Regarding buildup of summary data in memory (array) or disk: Well, let me compare with
statistics output. This is something that IS build up into memory and is flushed into the
file at the very moment of closing the final simulation end dialog with "yes"
(closing view & files). Whether it's only flushing the file output buffer or outputting a
data structure at that time is secondary.
Regards,
Rob
Am 14.03.2022, 08:53 Uhr, schrieb Jakob Erdmann <[email protected]>:
I'd suggest to add this condition to get it working also in
https://sumo.dlr.de/docs/Simulation/Output/StatisticOutput.html, >preferably
accompanied with a reference to
https://sumo.dlr.de/docs/Simulation/Output/index.html#converting_outputs or to
https://>sumo.dlr.de/docs/Tools/Xml.html#xml2csvpy.
The documentation already says "The elements vehicleTripStatistics,
pedestrianStatistics, rideStatistics and transportStatistics are >only generated when
either of the options --duration-log.statistics or --tripinfo-output are set."
I've now put this into a yellow box to make it more visible.
Note: the reason why this isn't on by default is because the additional
bookkeeping required by this feature can slow down the >simulation.
I'd suggest to accumulate the summary in memory and output it at once to file,
because this wouldn't slow down simulation.
I'm not sure I understood the suggestion. Do you propose that accumulating in
memory would bring a speedup or that it would bring some >other benefit
(without slowing down the simulation)?
best regards,
Jakob
Am Mi., 9. März 2022 um 15:04 Uhr schrieb Rob Maris <[email protected]>:
Approx. a month ago I started sumo sometimes with --statistic-output <FILE>.
Now, as I'm going to use this feature again, that means starting sumo-gui from the
commandline, I did not get it working, which >>resulted in some frustration...
After inspecting old invocations from .bash_history, I saw that I also used the -c
option. Then it works. Despite the fact that >>duration-log.statistics is
defined in the xxx.sumocfg file.
I'd suggest to add this condition to get it working also in
https://sumo.dlr.de/docs/Simulation/Output/StatisticOutput.html, >>preferably
accompanied with a reference to
https://sumo.dlr.de/docs/Simulation/Output/index.html#converting_outputs or to
https://>>sumo.dlr.de/docs/Tools/Xml.html#xml2csvpy.
Regarding the summary output: I see that the file is growing during simulation. And that the file is
accessible after Simulation end >>when the dialog box "Simulation ended" is responded to with
"No" to close files & views.
I'd suggest to accumulate the summary in memory and output it at once to file,
becaus this wouldn't slow down simulation.
Regards,
Rob
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