Autosizing TCP buffers

Peter Avalos pavalos at
Sun Jul 26 14:23:38 PDT 2009

On Sun, Jul 26, 2009 at 12:00:13PM -0700, Matthew Dillon wrote:
> :Here's a patch that autosizes TCP buffers which increases network
> :performance over high-latency links.  Please review.  I'm leaving the
> :country for a couple months, so I may push this in a couple days if I
> :don't get any problem reports.
> :
> :Thanks,
> :Peter
>     So far so good, it runs on a test box.  I am rebuilding the world &
>     kernel on leaf now and will also run it on leaf.  That should be a
>     better test.  It will be running in about an hour.
>     netstat -tnaB  (upper case B) can be used to display socket
>     buffer sizes, though I'm not entirely sure if the dynamic size
>     changes will show up there.
You should be able to see the changes. is running
that code, so if you need to do some test transfers over the actual
Internet, feel free.  It's about 100ms between those computers.

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