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Re: The next broadband killer: advanced operating systems?
In a message written on Mon, Oct 22, 2007 at 06:42:48PM +0200, Mikael Abrahamsson wrote: > You can achieve the same thing by running a utility such as TCP Optimizer. > > http://www.speedguide.net/downloads.php > > Turn on window scaling and increase the TCP window size to 1 meg or so, > and you should be good to go. A bit of a warning, this is not exactly the same thing. When using the method listed above the system may buffer up to 1 Meg for each active TCP connection. Have 50 people connect to your web server via dialup and the kernel may eat up 50 Meg of memory trying to serve them. That's why the OS defaults have been so low for so long. The auto-tuning method I referenced dynamically changes the size of the window based on the free memory and the speed of the client allowing an individual client to get as big as it needs while insuring fairness. On a single user system with a single TCP connection they both do the same thing. On a very busy web server the first may make it fall over, the second should not. YMMV. -- Leo Bicknell - [email protected] - CCIE 3440 PGP keys at http://www.ufp.org/~bicknell/ Read TMBG List - [email protected], www.tmbg.org