On Tue, 22 Feb 2005 10:14:47 -0800, David S. Miller <davem@xxxxxxxxxxxxx> wrote:There might be a noticeable performance impact to making it truly modular. Calling a function in a module is slower. In some tests, I see a 5 to 10% drop in performance when Ethernet driver is a module versus builtin.
On Tue, 22 Feb 2005 13:03:11 -0500 (EST)
John Heffner <jheffner@xxxxxxx> wrote:
> An idea I've been toying with for a while now is completely abstracting
> congestion control. Then you could have congestion control loadable
> modules, which would avoid this mess of experimental algorithms inside the
> main-line kernel. If done right, they might be able to work seamlessly
> with SCTP, too. The tricky part is making sure the interface is complete
> enough.
The symbols exported to allow this would need to be EXPORT_SYMBOL_GPL().
Why's that?