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Date: Wed, 17 Feb 2010 17:03:49 +0100
From: Harald Schmalzbauer <h.schmalzbauer@omnilan.de>
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Subject: best practice to watch TCP parms of established sockets
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Hello,

while doing some ZFS tests with RELENG_8 I recognized a mysterious=20
performace drop after an hour uptime.
Now my first idea is to compare MSS and windows sizes before and after=20
the performance drop.
How do I best capture them? tdpcump? It's GbE linkspeed...
Or is netstat capable to show these values? Or is there any way to read=20
out the values stored in tcp.hostcache?

Thanks,

-Harry


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