More info and download link (320 KB) here. This change has a system wide effect and is applied even if the network is not high speed connection with a high latency, with the exception of modem connections for which the system uses small default TCP buffer sizes.īroadband Tuner 1.0 requires Mac OS X 10.4 or later. The system parameters are sysctl variables that are set as follows: A startup configuration file is also updated so that these changes will persist across restarts. With larger buffers more data can be in transit at once. What does the Broadband Tuner do exactly? The installer increases the default values for the size of the TCP send and receive buffers. There is an optional uninstaller that can be used to restore the settings that were in effect at the time just before the system parameters were changed. The installer tweaks some system parameters. Apple has released Broadband Tuner 1.0 which allows you to take full advantage of very high speed Internet connections that have a high latency (5 Mbps or greater).
