Very low FPS on date change after using Astrocalc

Bug #1685552 reported by Nick Fedoseev on 2017-04-22
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Alexander Wolf

Bug Description

- Run Stellarium.
- Show Date/time dialog (F5)
- Move cursor to year, month, day, hour, min or sec value
- scroll any of the above with mouse scroller
FPS is always in range 30..60

- Now Call AstroCalc (F10) and Close it (with or without any operation in between)
- try again scroll values in Date/time dialog
- no change with hour, min or sec, but any change in date causes a very big delay (~2..3seconds),
- FPS falls to ~0.3

After processing all the scroller events FPS comes back to usual high value.

Seen in 0.15.2 and 0.90.latest

No problem on 0.14.3.

Nick Fedoseev (nick-ut2uz) wrote :

Perhaps this is related to big list of satellites (16000+), which I play with.
When all the satellites are displayed in wide FOV, the FPS is about 5..10. If I switch view satellites off, the FPS is 30..60 as usual.

Finally I tried to restore the default setting for satellites and after restarting Stellarium the bug has gone. Then I load that big list again, and le voila... I can't switch dates without problems again. Not only mouse scroll causes such a big delay. The same is for keyboard as well.

Alexander Wolf (alexwolf) wrote :

Could you attach your satellites.json to testing?

Changed in stellarium:
importance: Undecided → Medium
Nick Fedoseev (nick-ut2uz) wrote :

The requested file is attached.

Alexander Wolf (alexwolf) wrote :

Please check version 0.16.1RC2 - seems this issue has been fixed.

Changed in stellarium:
assignee: nobody → Alexander Wolf (alexwolf)
tags: added: astrocalc satellites
Changed in stellarium:
status: New → Fix Committed
Changed in stellarium:
status: Fix Committed → Fix Released
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