Re: [RFC Patch] net: reserve ports for applications using fixedport numbers

[David Miller]

From: Octavian Purdila <opurdila@xxxxxxxxxxx>
Date: Thu, 4 Feb 2010 20:15:51 +0200

> int inet_is_reserved_local_port(int port)
> {
> 	if (test_bit(port, reserved_ports))
> 		return 1;
> 	return 0;
> }
> 
> In theory it might be slower because of the reserved_ports bitmap will have a 
> larger memory footprint than just a min/max, especially with random port 
> allocation. But is this an issue in practice?

No need to speculate, some simple benchmarks would confirm or deny
this.
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