On Thu, Aug 27, 2009 at 09:54:05AM +0800, Kacheong Poon wrote:
> Dan McDonald wrote:
>
>> Am I on crack? Or is this sensible. One other OS seems to have theirs
>> default to 512k. I'd personally prefere 1MB, but can be swayed.
Hmmm, my data on other platforms is stale or incorrect. I see 64k on MacOS
X:
mactavish(~)[0]% sysctl -a | grep tcp | grep space
kern.exec: unknown type returned
net.inet.tcp.sendspace: 65536
net.inet.tcp.recvspace: 65536
mactavish(~)[0]%
> Just wondering, how is the 1MB number obtained?
Two words: Thin Air. :)
> As an example
> of client usage, I use VPN to connect back to the US Sun network
> from Hong Kong.
Punchin? (just curious)
> The path also goes through some NAT box. I use a xDSL link with
> 30Mbps/10Mbps (down/up) speed. The RTT is ~185ms to machines in Santa
> Clara.
So at 10Mbit, that:
1250000 bytes * 0.185sec == 231250 bytes.
> I think the default should be changed.
Perhaps to 256k then? (It would cover your case that way.)
Dan
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