Bug 44568 - Half-Life 1 engine has poor fps is large areas
Summary: Half-Life 1 engine has poor fps is large areas
Status: RESOLVED WONTFIX
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/Gallium/r600 (show other bugs)
Version: git
Hardware: Other Linux (All)
: medium normal
Assignee: Default DRI bug account
QA Contact:
URL:
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Depends on:
Blocks:
 
Reported: 2012-01-07 23:55 UTC by Toni Spets
Modified: 2015-11-26 08:19 UTC (History)
0 users

See Also:
i915 platform:
i915 features:


Attachments
Slow GLTrace (838.86 KB, application/gzip)
2012-01-07 23:55 UTC, Toni Spets
Details
Fast GLTrace (1016.12 KB, application/gzip)
2012-01-07 23:56 UTC, Toni Spets
Details

Description Toni Spets 2012-01-07 23:55:03 UTC
Created attachment 55280 [details]
Slow GLTrace

I've been following the fps of this engine for a few years, pre-gallium and lately gallium. There is a noticable fps drop in maps that contain water or a lot of models.

Normally, a fps drop from 100 to ~15 happens in action situations with smoke, other players, water etc.

Taken that the engine is over 10 years old, is using standard OpenGL and it runs very fine at 100fps on windows, my guesstimate is that it is using some unoptimized GL path.

Attached slow gltrace is from viewing an area where my fps in 800x600 resolution is around 56 with a lot of models on the screen and the fast trace is from a map that doesn't have that drop at all when nothing is happening.

The traces are around from the same period of time but the fast trace went at ~25 fps and the slow at ~5 fps when it was logged. Both traces start and end with the game menu but only briefly.

Would appreciate if someone could finally take a shot at fixing this.
Comment 1 Toni Spets 2012-01-07 23:56:10 UTC
Created attachment 55281 [details]
Fast GLTrace
Comment 2 Christoph Brill 2015-11-18 20:15:58 UTC
This was tested against an old version of mesa. Does the problem still persist with mesa 11.0.x or later?
Comment 3 Toni Spets 2015-11-20 14:49:44 UTC
No hardware to test this anymore, should probably be closed.
Comment 4 Michel Dänzer 2015-11-26 08:19:19 UTC
Thanks for the followup. FWIW, apitrace is more useful for this kind of thing than gltrace.


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