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Low frame rate in World of Warcraft using NVInject for 8800GTS (G80)


spamwax
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Hi everyone

 

I am running Leopard 10.5.2 (Kalyway) with vanilla kernel on a

GA-965p-DS3 rev. 3.3

Inter Core 2 Duo 6600 @ 2.4GHz

nVidia 8800 GTS (320MB) (G80) (Device ID: 0x0193)

 

I am using NVInject 0.2.1 and all other applications that I use work very well when it comes to my

graphics card.

But I have an intermittent problem with World of Warcraft!

It sometimes work as fast as it does on Windows XP and sometimes it gives me very low frame rates.

(this change in frame rate doesn't happen when I am gaming rather it when I start the game in a different session).

 

I haven't been able to pin point under what circumstances it works fast but I have noticed that when

I get low frame rates (10fps) , kernel_tas (or maybe kernel_task) uses almost 100% of one of my CPU's

cores.

When World of Warcraft is running smoothly, I barely can find kernel_tas when I run 'top' or 'ps'.

 

I should add that when I am at logging page of WOW, I don't have kernel_tas problem but as soon as

I login to the game its usage of cpu jumps high.

 

Please see the attached screenshots.

 

A little search suggested that kernel_tas using a lot of cpu resources can be related to bad kernel extensions

(kext).

So I was wondering if anyone else has experienced this or can help me pinpoint/resolve this issue.

 

When logged in to game: (note kernel_tas is using 80% of cpu):

 

9fps.png

 

 

When at character logging page (note that kernel_tas is only using 4.5%):

 

logging.png

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  • 4 weeks later...

to get the same framerate as windows (or even better) disable full screen glow. patch 2.4.2 will have improved full screen glow support for OSX making it just as fast (if not faster) than windows.

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  • 4 weeks later...
to get the same framerate as windows (or even better) disable full screen glow. patch 2.4.2 will have improved full screen glow support for OSX making it just as fast (if not faster) than windows.

Thanks for this info, I will check it today when I get home!

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if you do /console SET AllowMultisampleFBO "1" in WoW and turn on fullscreen glow and then restart WoW, it will use the new OpenGL code path for fullscreen glow rendering and perform just as well as the windows side.

 

this is new in patch 2.4.2

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