Latency Patch for Mac

Latency Patch for Mac

Post 10 Mar 2011 03:52

Avatar PallyPower
 
Posts: 8
I was wondering if any of you paragon raiders or anyone out there uses a Macintosh computer while raiding, and what latency patch(es) you use. All of the patches that I have been able to find, such as leatrix, are all for windows. any help would be appreciated.

Re: Latency Patch for Mac

Post 10 Mar 2011 09:15

Avatar Kruf
 
Posts: 473
You don't need a "latency patch" for Mac OS X, since it already works as it should (unlike Windows).

Re: Latency Patch for Mac

Post 13 Mar 2011 02:25

Avatar PallyPower
 
Posts: 8
yea I was just wondering if there was anything I could do on macs to lower latency. Didn't realize that the patches were only for windows. however bought new internet down to 50 latency so im happy :D. thanks!

Re: Latency Patch for Mac

Post 13 Mar 2011 22:01

Avatar JohnNutt
 
Posts: 1
Kruf wrote:You don't need a "latency patch" for Mac OS X, since it already works as it should (unlike Windows).


Leatrix Latency Fix disables Delayed ACK on Windows. The same mechanism is ON by default in Mac OS X. To disable it you can run:

Code: Select all
sudo sysctl -w net.inet.tcp.delayed_ack=0

Re: Latency Patch for Mac

Post 14 Mar 2011 05:12

Avatar Kruf
 
Posts: 473
JohnNutt wrote:
Kruf wrote:You don't need a "latency patch" for Mac OS X, since it already works as it should (unlike Windows).


Leatrix Latency Fix disables Delayed ACK on Windows. The same mechanism is ON by default in Mac OS X. To disable it you can run:

Code: Select all
sudo sysctl -w net.inet.tcp.delayed_ack=0


It's not actually explicitly "on", it's in "auto" mode which seems to work reasonably well for the case of WoW - I see exactly the same latency on unmodified OSX 10.5 as I see on "patched" Windows when playing from the same network.

Code: Select all
delayed_ack=0 responds after every packet (OFF)
delayed_ack=1 always employs delayed ack, 6 packets can get 1 ack
delayed_ack=2 immediate ack after 2nd packet, 2 packets per ack  (Compatibility Mode)
delayed_ack=3 should auto detect when to employ delayed ack, 4 packets per ack.  (DEFAULT)


PS. Yes, I know 10.6 is out, but I employ the strategy of "don't fix something that's not broken" on this laptop...