Low framerates since 2.4?

[Stealthy]

Hi guys,

Anyone else experienced this? I had a 20-40 FPS drop on my main's PC since the patch. FPS drops on alt's machines as well, but not as bad.

System specs:
Intel Core 2 Quad 2.4Ghz
4GB RAM
Geforce 8800 GTX 768MB

Have tried with and without mods, removed the WTF folder...etc. All the usual tricks and nothing seems to have worked.

Cheers,
Stealthy

[yarr]

Hi guys,

Anyone else experienced this? I had a 20-40 FPS drop on my main's PC since the patch. FPS drops on alt's machines as well, but not as bad.

System specs:
Intel Core 2 Quad 2.4Ghz
4GB RAM
Geforce 8800 GTX 768MB

Have tried with and without mods, removed the WTF folder...etc. All the usual tricks and nothing seems to have worked.

Cheers,
Stealthy

i havent noticed a lower overall framerate, however I have noticed that every now and then, the framerate on one window drops WAY down, to like 1fps or lower. This seems random as to what time it happens, and which window it affects. I notice that the CPU usage for that window goes way up whenever it happens.

[NightFire]

I've noticed lower frmae rates also, but nothing significant.... dropped from ~60 to ~40. After an AH scan with auctioneer it drops to 1 for about 30-45 seconds after the AH window is closed.

I have an 512MB 8800GTX, FX60CPU, 3GB RAM and Raptors

[Toned]

I've been having the same issues.

[Stealthy]

I go down to about 15 FPS in Shat and IQD during peak times at the moment which is really annoying. I have seen this exact same problem in a previous patch - which Blizz had denied any problems for about it a month beofre finally fixing it in a patch.

Other things I've noticed - FPS much worse outdoors than indoors. Resetting PC improves FPS slightly (memory leak maybe?), but gets worse over time.

I'm going to post it up in th Blizz tech support forum, maybe I'll get lucky and get a blue response.

Cheers,
Stealthy

[Djarid]

I did notice a significant degradation immediately after installing the patch but it has since stabilized and if anything I think I am seeing an improvement.

[Tizer]

Heres a little info that might help, if you dont know what you are doing with regedit, dont go there.

This can reduce lag AND improve your framerate.

"1 - TcpAckFrequency - NOTE if you are running Windows Vista this setting may not have any effect - a hotfix is needed i dont have the link to, but it is out there. This works fine under Windows XP

Type "regedit" in windows "run.." dialog to bring up registry menu

Then find:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\Tcpip\Parameters\Interfaces\

There will be multiple NIC interfaces listed in there, find the one you use to connect to the internet, there will be several interfaces listed (they have long names like {7DBA6DCA-FFE8-4002-A28F-4D2B57AE8383}. Click each one, the right one will have lots of settings in it and you will see your machines IP address listed there somewhere. Right-click in the right hand pane and add a new DWORD value, name it TcpAckFrequency, then right click the entry and click Modify and assign a value of 1.

You can change it back to 2 (default) at a later stage if it affects your other TCP application performance. it tells windows how many TCP packets to wait before sending ACK. if the value is 1, windows will send ACK every time it receives a TCP package.

2 - TCPNoDelay
This one is pretty simple (also discussed on link below):

http://technet2.microsoft.com/window....mspx?mfr=true

Type "regedit" in windows "run.." dialog to bring up registry menu

Then find:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSMQ\Paramet ers

Right-click in the right hand pane and add a new DWORD value, name it TCPNoDelay, then right click the entry and click Modify and assign a value of 1.

Click Ok and close the registry editor, then reboot your PC."

Basically, this fix is deactivating the Nagle algorithm to improve your ping.

[Canasou]

Stealthy, I've experienced the exact same thing.

[NightFire]

I did that registry hack about a week or so ago.... no improvements at all.

[d0z3rr]

Heres a little info that might help, if you dont know what you are doing with regedit, dont go there.

This can reduce lag AND improve your framerate.

"1 - TcpAckFrequency - NOTE if you are running Windows Vista this setting may not have any effect - a hotfix is needed i dont have the link to, but it is out there. This works fine under Windows XP

Type "regedit" in windows "run.." dialog to bring up registry menu

Then find:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\Tcpip\Parameters\Interfaces\

There will be multiple NIC interfaces listed in there, find the one you use to connect to the internet, there will be several interfaces listed (they have long names like {7DBA6DCA-FFE8-4002-A28F-4D2B57AE8383}. Click each one, the right one will have lots of settings in it and you will see your machines IP address listed there somewhere. Right-click in the right hand pane and add a new DWORD value, name it TcpAckFrequency, then right click the entry and click Modify and assign a value of 1.

You can change it back to 2 (default) at a later stage if it affects your other TCP application performance. it tells windows how many TCP packets to wait before sending ACK. if the value is 1, windows will send ACK every time it receives a TCP package.

2 - TCPNoDelay
This one is pretty simple (also discussed on link below):

http://technet2.microsoft.com/window....mspx?mfr=true

Type "regedit" in windows "run.." dialog to bring up registry menu

Then find:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSMQ\Paramet ers

Right-click in the right hand pane and add a new DWORD value, name it TCPNoDelay, then right click the entry and click Modify and assign a value of 1.

Click Ok and close the registry editor, then reboot your PC."

Basically, this fix is deactivating the Nagle algorithm to improve your ping.
[/font][/color]

Blizzard stopped using the nagle algorithm a few patches ago.



I myself have not experienced any differences in performance.