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re: Improve Your Latency...Profit!
by Khon - Webmaster on Sat Dec 15, 2007 7:27 am
I found this on my old guild's forums. It's a registry fix that increases the rate that you send and receive packets. I suggest EVERYONE use it to improve overall performance in game (especially arenas). After using it, I went from a constant 280ms to 150-160 during prime time. For those that don't care how it works:
1) Determine your IP (ipconfig or similar)
2) Run Regedit
3) Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces
4) Determine which interface is for your IP. The correct interface will have a DhcpIPAddress set to your current IP.
5) Right-click on the interface and select New->DWORD
6) Set the name to TcpAckFrequency (case sensitive)
7) Set to a decimal value of "1"
8) Save
9) Restart your computer
If you're tech-savvy and want to know exactly what it's doing...
It increases the throughput on your Flux Capacitor.
In reality:
The TcpAckFrequency value determines how often TCP/IP sends an acknowledgment message.
* If the value is 2, TCP/IP will send an acknowledgment after 2 segments have been received or when 1 segment has been received but no other segment has been received for 200 milliseconds.
* If the value is 3, TCP/IP will send an acknowledgment after 3 segments have been received or when 1 or 2 segments have been received but no other segment has been received for 200 milliseconds.
* And so on.
*Important Bit*
If you need to improve response time by removing the TCP/IP acknowledgment delays, set this value to 1. In this case, TCP/IP will immediately send an acknowledgment to every segment. If your connections are used primarily to move large amounts of data and the 200 millisecond delay is insignificant, you may want to increase this value to reduce the overhead of acknowledgments.
So in other words, if your running a Server of some kind, this is a good thing to help reduce loads. On a personal PC however, particularly when it comes to latency response times in online games, this can introduce 30 to 60 percent more latency.
This might not have any effect in Vista, 32 or 64 bit. Every bit of documentation I could find on this only refers to Windows Server 2003 and XP. Honestly, just see if the registry key path exists. If it does, create a backup of your registry and try adding the DWORD. If it adversely affects your system, just restore the backup and kick yourself in the ass for using Vista Wink
By default, Windows uses a value of 2 (acknowledges every other segement). The valid range for this value is 0 to 255 where 0 indicates that the default value (2) should be used.
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LexaOfficer
Joined: 01 Oct 2007 Posts: 32
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re: Improve Your Latency...Profit!
by Lexa on Sun Dec 16, 2007 11:33 pm
this lowered my latency from 170-180 to 50-60
also lowered besom's latency by 100 some
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LexaOfficer
Joined: 01 Oct 2007 Posts: 32
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re: Improve Your Latency...Profit!
by Lexa on Mon Dec 17, 2007 2:40 am
Apparently there's another registry fix that is suppose to help out as well:
Type "regedit" in windows "run.." dialog to bring up registry menu
Then find:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSMQ\Parameters
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.
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IcecreamRaider
Joined: 16 Jul 2007 Posts: 8
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re: Improve Your Latency...Profit!
by Icecream on Mon Dec 17, 2007 4:39 pm
i saw something similar on mmo champion, and it said blizz is gonna put that in along with 2.3.2 to improve your latency automatically
are they the same thing?
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MakaiRaider
Joined: 18 Jul 2007 Posts: 118
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re: Improve Your Latency...Profit!
by Makai on Mon Dec 17, 2007 7:59 pm
Blizzard is always late!
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re: Improve Your Latency...Profit!
by Theuglystick on Sat Jan 12, 2008 9:13 pm
Hmm the closest catagory I found had a dchpipadresss set to a similar ip but it was 1 digit off... =x I hope it works.
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BlueshoesOfficer
Joined: 15 Aug 2007 Posts: 268
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re: Improve Your Latency...Profit!
by Blueshoes on Tue Jan 22, 2008 2:23 pm
fixed with 2.32, no longer does anything. In fact it gave me lag spikes now.
_________________ ~Blueshoes
80 Paradrin of
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