On 8/14/13 3:23 PM, Lawrence Stewart wrote:
On 08/14/13 16:33, Julian Elischer wrote:
They switched to using an initial window of 10 segments some time ago.
FreeBSD starts with 3 or more recently, 10 if you're running recent
9-STABLE or 10-CURRENT.
I tried setting initial values as shown:
net.inet.tcp.local_slowstart_flightsize: 10
net.inet.tcp.slowstart_flightsize: 10
it didn't seem to make too much difference but I will redo the test.
Assuming this is still FreeBSD 8.0 as you mentioned out-of-band,
changing those variables without disabling rfc3390 will have no effect.
I think (check the driver code in question as I'm not sure) that if you
"ifconfig <if> lro" and the driver has hardware support or has been made
aware of our software implementation, it should DTRT.
so I ran on 9.2-beta ( a week or two old) and it had similar problems..
only worse.. 9.2 actually sends multiple packets when is doesn't need to..
http://people.freebsd.org/~julian/fbsd9.png
Cheers,
Lawrence
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