DRD Team

Hello Mr Graf!

I downloaded the build 2.5pre-47 and realised that its speed is slower than 2.3.2. The speed in 2.3.2 is slower than the one in 2.2.0.

When playing zdcomp 2 after passing the first door, facing the wide yello door, I get about 110fps on a GTX750 and about 70fps on a GTX950M.

I do understand that more/new options and function in GZDoom eat up performance.
However, my question is: What can the user do to speed GZDoom up a bit?

Thanks for your great work and best regards!
zhd

What speed did you get in 2.2.0?

Hello there!

Thanks for your reply! I just made a test with both gfx cards. I used zdcomp2 plus a simple UDFM sector with nothing but a player. This was run from within GZDB. Here are the results.


GTX750
======

zdcomp2 facing the yellow door:

2.2.0 110fps
2.3.2 110fps
2.5pre-47 110fps

128x128 sector (UDMF) with payer1 start only

2.2.0 640fps
2.3.2 590fps
2.5pre-47 500fps


GTX950M
=======

zdcomp2 facing the yellow door:

2.2.0 95fps
2.3.2 80fps
2.5pre-47 70fps

128x128 sector (UDMF) with payer1 start only

2.2.0 290fps
2.3.2 240fps
2.5pre-47 235fps


Any idea?

Thanks for your support!
zhd

No idea where it's coming from but between 2.3.2 and the current master there has definitely been some slowdown. Got to find out where it came from.

Don't worry too much, Mr Graf, because 2.4.0 is great concerning its speed.

When entering gl_renderbuffers 0 to 2.3.2 and 2.5pre I notice a significant speed increase.

At the moment, I'm perfectly content with 2.4.0.

Happy developing!
Best regards
zhd

The speed increase is not really surprising because all postprocessing effects plus multisampling are disabled.
Keep in mind that this is a once-per-frame matter, so it will show most noticably on maps which already have good rendering performance. But on maps that really tax the hardware it won't make much of a difference.

The quesion in the end has to be, what is more important - 200 vs. 300 fps or smoother visuals.