Speed up

[Loren Schooley]

I know this is an old subject, but I have found very few who utilize and
take advantage of it, and that is using sysctl to boost browser and other
download speeds. I tested it out with different numbers and the results
proved accordingly. This hack works!

Open Terminal and type sysctl -a

The listing should contain the following lines:

 net.inet.tcp.sendspace: xxxxx
 net.inet.tcp.recvspace: xxxxx
 net.inet.tcp.delayed_ack: 1
 net.inet.udp.recvspace: xxxxx

The OSX default is 32768. It's recommended you double it.
Hell I maxxed it out, works GREAT! -->131072. Most recommend 65536.

1---

 Free:Loren:~> sudo sysctl -w net.inet.tcp.rcvspace=131072
 Free:Loren:~> sudo sysctl -w net.inet.tcp.sendspace=131072

Wow, this brought my connection from 32K per second to 128K per second.
And it's a very blatant improvement.

2---
 
Free:Loren:~> sudo sysctl -w net.inet.udp.recvspace=73728
    Hmm, couldn't see much difference. But other sites recommend it.

3----

Then there is 

    net.inet.tcp.delayed_ack: 1

I changed it to 0

Delayed acks reduces the amount of bandwidth on a network, but piggy-backing
ack packets on other outgoing packets. If you turn off delayed acks, you can
reduce latency associated with some transfers (i.e.: some situations
associated with downloading files via Windows networking).

 Free:Loren:~> sudo sysctl -w net.inet.tcp.delayed_ack=0

-----

No need to reboot. The bottom line is that OSX defaults at a slower speed.
My pages flick now instead of growl.