Topic Frame Rate Stutter
Gworr
Eldre'Thalas
Gworr
85 Orc Death Knight
3300
Can someone explain why the FPS stutter issue has not been fixed for Snow Leopard? This stutter issue was not a problem in Wrath. I understand that this issue was fixed with Lion but I don’t feel that I should have to upgrade to Lion in order to fix this issue. So who is at fault? Blizzard or Apple with this issue?
Omegal
Whisperwind
Omegal
MVP
85 Human Warrior
13285
Edited by Omegal on 2/19/12 9:55 AM (PST)
02/19/2012 09:39 AMPosted by Gworr
Can someone explain why the FPS stutter issue has not been fixed for Snow Leopard? This stutter issue was not a problem in Wrath. I understand that this issue was fixed with Lion but I don’t feel that I should have to upgrade to Lion in order to fix this issue. So who is at fault? Blizzard or Apple with this issue?

The bug is IN Snow Leopard. But it's neithers fault, as apple has provided an update to fix the issue (payed but cheap upgrade to Lion), and blizzard did all they could to work around the issue for users who didn't/couldn't upgrade right away.

Also, it didn't happen in wrath because wrath had much lower graphics and zones with less detail, plus a farclip setting that didn't go as high (view distance). 4.x added tons of new visuals, even ondocumented ones like MANY spell effects revamped to look better and use a lot more particles, much higher polygon counts in old world (especially zones like stormwind and what not). Since you'd spend much of your time in stormwind, or new zones like uldum and what not, it's important to note all of these zones have a much higher polygon count then anyting in wrath did. So you're comparing apples to oranges. Blizzard cannot fix this issue though beyond everything they already tried to do. Asside from having massive amounts of vram, and their 80% caching rule they added in 4.3, and turning view distance down, you cannot avoid this issue until you upgrade your OS to one that's actually supported by apple where they have fixed this bug (lion).
Machkhan
Machkhan
Support Forum Agent
This much is true, as the team does try the best with some limitations.

Though I hear that if you try the 64-bit WoW Client version, this helps for this issue. Try it out.

http://us.battle.net/wow/en/forum/topic/3988300444
________________________________________________
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Omegal
Whisperwind
Omegal
MVP
85 Human Warrior
13285
True, the 64 bit client while running 64 bit kerne all but eliminates it too, as the issue is primarily in the 32-bit memory management of opengl on 10.6.8 i'm sure.
32 bit kerenl with 64 bit app will help some but not completely as tiap has noted on his limited 32 bit kernel mac. But if yours supports 64 bit, you can boot 64 bit kernel mode to eliminate this proble with 64 bit wow client.
Gworr
Eldre'Thalas
Gworr
85 Orc Death Knight
3300
Ok. Thanks for the information:). I might try the 64 bit client out.
Gworr
Eldre'Thalas
Gworr
85 Orc Death Knight
3300
Update. Much much much better performance under the 64 bit client. Thanks:)
Machkhan
Machkhan
Support Forum Agent
Cool. And I'll pass that feedback onward :)
________________________________________________
Mac Tech Support for Baaaaahlizzard Entertainment
Not finding what you need here? Contact a rep direct! http://us.battle.net/support/en/article/contact

Pfft! Secret doors, who needs 'em? What do I care about secret doors?... and the unparalleled delights they keep hidden from the world!
Gworr
Eldre'Thalas
Gworr
85 Orc Death Knight
3300
Thanks for all of the responses. Unfortunately I was a little too optimistic. I did some more testing and the stutter is still a problem. So it seems that my only feasible option to fix this issue is to upgrade to Lion, which I think is pretty lame. People should not have to upgrade their operating system in order to get this problem fixed. So let me guess, any bugs in Lion will get fixed with Mountain Lion. See the trend here? This is a concern for all Apple users out there especially when Apple plans to release a new operating system every 12 months (that’s coming from a few business articles I read).

Oh, well enough of me venting. FYI, my iMac is fairly new. I have the 21.5 inch that has the Radeon HD 6770M graphics card. I bought is a few months before Lion was released.
Omegal
Whisperwind
Omegal
MVP
85 Human Warrior
13285
Thanks for all of the responses. Unfortunately I was a little too optimistic. I did some more testing and the stutter is still a problem.

you are probalby not using a 64 bit kernel then, go to system information for your mac and look for this line


System Software Overview:

System Version: Mac OS X 10.7.3 (11D50b)
Kernel Version: Darwin 11.3.0
Boot Volume: Mac OS X (SSD)
Boot Mode: Normal
Computer Name: Omega-3
Secure Virtual Memory: Enabled
64-bit Kernel and Extensions: Yes
Time since boot: 3 days 8:39

if it does not say yes, you will want to turn it on to improve wow performance with 64 bit client.
instructions in this post here http://us.battle.net/wow/en/forum/topic/3988300444#15
Gworr
Eldre'Thalas
Gworr
85 Orc Death Knight
3300
Omegal, the 64 bit kernel and extensions was enabled when I tested.
Omegal
Whisperwind
Omegal
MVP
85 Human Warrior
13285
02/19/2012 09:34 PMPosted by Gworr
Omegal, the 64 bit kernel and extensions was enabled when I tested.

hmm i dunno then, guess i never did ask what your hardware is. how much vram do you have? 64 is more efficent with the memory but i suppose the stutter could still be bad if you don't havea 1GB vram vid card maybe?
Machkhan
Machkhan
Support Forum Agent
Hi Gworr,

Can you describe the stutter? Is this only happening when you turn your camera, or just when standing still, etc? This will help us make sure what type of stutter you have and if it's not something else causing this.
________________________________________________
Mac Tech Support for Baaaaahlizzard Entertainment
Not finding what you need here? Contact a rep direct! http://us.battle.net/support/en/article/contact

Pfft! Secret doors, who needs 'em? What do I care about secret doors?... and the unparalleled delights they keep hidden from the world!
Gworr
Eldre'Thalas
Gworr
85 Orc Death Knight
3300
Machkhan, the stuttering occurs when I turn. Omegal how do I check how much VRAM I have (I'll have to check this when I get home from work)?
Omegal
Whisperwind
Omegal
MVP
85 Human Warrior
13285
Obtaining System Information
    1. Hold the 'Option' Key and choose System Profiler/Information from the Apple Menu.

    2. Copy the information from the following sections:
  • Hardware (remove the Serial Number line)
  • Graphics/Displays
  • Software (remove the Computer Name and User Name lines)
Korbendallas
Garona
Korbendallas
85 Dwarf Warrior
6760
I get the same stutter effect on my machine as well. It happens when i go from full screen to windowed mode tab out and open safari to check something like wow head. And then go back to the game. The stutter appears. If i stay full screen he whole time i don't have a issue.


Omegal
Whisperwind
Omegal
MVP
85 Human Warrior
13285
the stutter is the result of swapping things in and out of vram on 10.6's opengl. i suspect when you open browser and do other things you sap some from wow.
Gworr
Eldre'Thalas
Gworr
85 Orc Death Knight
3300
Hmmm...I'll have to do some more testing when I get home. I tend to keep safari open when playing wow.
Korbendallas
Garona
Korbendallas
85 Dwarf Warrior
6760
Ok so is there a way to increase the Vram size.
Gworr
Eldre'Thalas
Gworr
85 Orc Death Knight
3300
Edited by Gworr on 2/20/12 4:33 PM (PST)
Well, looks like the culprit might be Safari. No stuttering noted in Orgrimmar, Uldum, or Twilight Highlands (with Safari closed).

Omegal, my system stats are below. Let me know if anything look out of place. Thanks all for your time and help.

Korbendallas, I do not think there is way to increase the Vram. I think the Vram is a fixed amount based on your graphics card. For example, my iMac is limited to 512MB of video ram. I could be wrong. I'll let the experts answer your question;)

Hardware Overview:

Model Name: iMac
Model Identifier: iMac12,1
Processor Name: Intel Core i5
Processor Speed: 2.7 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 6 MB
Memory: 4 GB
Boot ROM Version: IM121.0047.B1D
SMC Version (system): 1.71f21


AMD Radeon HD 6770M:

Chipset Model: AMD Radeon HD 6770M
Type: GPU
Bus: PCIe
PCIe Lane Width: x16
VRAM (Total): 512 MB
Vendor: ATI (0x1002)
Device ID: 0x6740
Revision ID: 0x0000
ROM Revision: 113-C0170C-170
EFI Driver Version: 01.00.544
Displays:

iMac:
Resolution: 1920 x 1080
Pixel Depth: 32-Bit Color (ARGB8888)
Main Display: Yes
Mirror: Off
Online: Yes
Built-In: Yes
Connection Type: DisplayPort

System Software Overview:

System Version: Mac OS X 10.6.8 (10K549)
Kernel Version: Darwin 10.8.0
Boot Volume: Macintosh HD
Boot Mode: Normal
Secure Virtual Memory: Not Enabled
64-bit Kernel and Extensions: Yes
Time since boot: 9:57

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