On Thu, 25 Nov 2004, Declan Grady wrote:
> Hi Paul,
> My tcp_rmem has the values : 4096 87380 174760
Yep, that's the default.
> From your note above, (512/8)*1.2 gives me 76.8 .. I guess this
> should then become 76.8*1024 to give 78643 ?
> .. so I should leave it as it is ?
You could try increasing it actually. Depends on how much RAM you
have really. You need at least (bandwidth*latency) for TCP to be
able to make full use of a link, you need more to be able to
So, you could try bumping that middle value up a bit (RAM
permitting), which might help performance a bit if/when your sat-link
Google for TCP bandwidth-delay product for (vast amounts of)
> Or am I on the wrong track ?
1. link latency - not RTT as ping measures. But in your case, the RTT
figures you get will likely be dominated by sat-link latency, so your
ping times are probably equivalent to your sat-link latency.
Paul Jakma paul at clubi.iepaul at jakma.org Key ID: 64A2FF6A
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