v2.0.0 #1682 Poor Performance (Linux)

edited 2015 Aug 11 in Technical Support
I realise that 2.0.0 is not an official release yet but I wanted to report a major drop in performance on Linux with the latest GIT revision.

If I use version 1.15.0 #1682 I get a constant 60 FPS with very little CPU usage but with the latest 2.0.0 #1682 (seems odd that both are reporting #1682) I average 30 - 40 FPS on the first level of Doom with much higher CPU usage spikes.

PC Specs:

Fedora 22
i7 @ 3.4Ghz
6GB Ram
Nvidia GTX 780 (Proprietary drivers 352.30)

Is there anything built into doomsday that will assist in diagnosing performance related issues?

I am using updated texture packs, ogg soundtrack, updated sound effects and some 3D models for ammo boxes, health etc. The main enemy sprites are 2D

Comments

  • Is your build from the Git master done with optimizations enabled? You'll need to set CMAKE_BUILD_TYPE=Release.
  • You did it once again. Thank you.

    I am really surprised at how much the optimisation makes a difference.
  • No problem! Compiler optimization certainly has a considerable effect, however in a Release build many safety checks and debug support features are also disabled, speeding things up.
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