[ut2004] UT2004 performance

[rix]

Corey Hickey wrote:

>rix wrote:
>
>  
>
>>UT2004 Build UT2004_Build_[2004-03-03_02.42]
>>x86 Linux
>>AuthenticAMD PentiumPro-class processor @ 2215 MHz
>>GeForce4 Ti 4800/AGP/SSE/3DNOW!
>>    
>>
>
>  
>
>>UT2004 Build UT2004_Build_[2004-03-03_02.42]
>>x86 Linux
>>AuthenticAMD PentiumPro-class processor @ 2205 MHz
>>GeForce4 Ti 4800/AGP/SSE/3DNOW!
>>
>>    
>>
>
>Looks like your CPU clock speed changed between tests. That small a
>difference in frequency wouldn't cause a drop that bad, though.
>
>  
>
>>My question is why am I getting 9 fps more with alsaplayer running? I
>>would have thought I'd get less fps. Of course audio isn't working in
>>the game while I'm running alsaplayer.
>>    
>>
>
>More likely this is the cause. If UT2004 can't access your sound card,
>it will simply disable sound altogether. Sound takes a considerable
>amount of processing power, and UT2004 has better video performance
>without it.
>
>  
>
>>By default does UT2004 use alsa?
>>I see alot of references to OpenAL in the game and on the mailing list,
>>how does this relate to ALSA. Can I keep this 9 fps gain simply by
>>editing the right audio config files and using ALSA for the audio in the
>>game?
>>
>>    
>>
>
>I've read that the openal included in UT2004 does support ALSA, but you
>need to edit your ~/.openalrc file to enable it. This seems to be true
>for my system, at least.
>
>bugfood at bugfood:~$ cat .openalrc
>(define speaker-num 2)
>(define devices '(alsa))
>(define alsa-out-device "hw:0,0")
>(define alsa-in-device "hw:0,0")
>
>I just ran a few benchmarks with and without the openalrc file, and also
>with using an openal.so I compiled myself
>
>Default openal.so, without openalrc (oss)
>25.386757 / 58.050838 / 128.858337 fps         rand[1919451183]
>
>Default openal.so, with openalrc (alsa)
>26.307125 / 61.370792 / 149.847153 fps         rand[1919451183]
>
>My openal.so, without openalrc (oss)
>25.151659 / 61.601536 / 138.154938 fps         rand[1919451183]
>
>My openal.so, with openalrc (alsa)
>26.524736 / 65.250824 / 150.324860 fps         rand[1919451183]
>
>-nosound
>25.925261 / 69.477638 / 158.971008 fps         rand[560406543]
>
>
>So, you can't get the performance of using no sound at all, but with
>some tweaking you might be able to get a significant boost. Instructions:
>http://icculus.org/~warp/ut2004/
>
>-Corey
>
>  
>
Yeah, I noticed the difference in CPU freq, I've never seen that happen 
before. Usually it is 2204Mhz (Athlon 2500+ @200X11). We did have some 
power problems today though that might explain it. Thanks for the 
breakdown on the various benchmarks with and without openalrc. I looked 
and all I have is a openal.so file, so I'll follow the instructions and 
get setup with openalrc.

                Rick Belins