[0.17.72] Much FPS lag, some UPS lag when next to many lamps
Posted: Wed Oct 23, 2019 8:26 am
by Ecconia
What I did:
- I build a 7 Segment number display, which I used in some of my worlds.
No mods.
What happened:
- When the 7-Seg is turned on and the map or the player sees the lamps (or gets near them), the FPS drop from 57-60 down to 10-30. Turing the lamps off, resolves this issue.
- It does not matter which world I open, this behavior stays the same for all of my 7-Seg displays. (Total of 3 worlds used to confirm).
- It actually does not matter if the input value of the display stays 0 or constantly changes. The lag is the same.
Expected:
- Since the values in all of the gates don't change and its day anyway (brightness max), I did not expect any lag in UPS nor FPS. And if lag for some refresh rates only in FPS, not in UPS.
- I also don't expect any lag from this, since a fresh world with just this 7-Seg already causes the lag. While my laptop can handle much bigger and more complex bases.
Lamps-On (FPS/UPS 17.6/36.7)
Screenshot from 2019-10-22 23-48-44.png (1.47 MiB) Viewed 1577 times
Lamps-Off (FPS/UPS 53.7/54.8)
Screenshot from 2019-10-22 23-48-06.png (1.64 MiB) Viewed 1577 times
Hardware:
- See logfile
- Ubuntu v18, WindowManager Xfce
- It only happens on my Laptop (Lenovo ThinkPad T460p)
- Does not occur on my Desktop Computer
Requested statistics:
Stats
Screenshot from 2019-10-23 10-22-37.png (1.86 MiB) Viewed 1577 times
Re: [0.17.72] Much FPS lag, some UPS lag when next to many lamps
Posted: Wed Oct 23, 2019 9:22 am
by posila
Hello, thank you for taking the time to post detailed bug report and including all the information we ask for!
Sidenote: I don't know if the laptop has switchable graphics (Intel iGPU + nVidia/AMD dicrete GPU), if it does, it's not configured to use the discrete GPU and the game was launched on the iGPU.
To solve or reduce lamp-induced FPS lag, go to graphics options and set "Lights render resolution" to the lowest value (0.25)
Re: [0.17.72] Much FPS lag, some UPS lag when next to many lamps
Posted: Wed Oct 23, 2019 2:00 pm
by Ecconia
Yes indeed, this helped a lot restoring some of the lost FPS.
The worst FPS I get is 45fps now, while UPS stays at almost 60 where it belongs.
And no I did not manage to properly get my GPU to run. So yes its using the internal GPU intentional. -Never had issues with that though-
*EDIT: By now I manged to fix it (for these who care, missing argument when booting - damn nvidia)