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Date: Sun, 19 Mar 2006 14:22:24 +0100
From: Stanislaw Halik <weirdo@tehran.lain.pl>
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Subject: Re: packet drop with intel gigabit / marwell gigabit
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On Sat, Mar 18, 2006, OxY wrote:
> i increased hz from 2000 to 5000, now the packet loss is decreased
> from 5-6% to 0.6-0,8% !!!
> huge improve!
> should i increase hz more?

won't increasing HZ over 1000 break TCP support? from
<20051216134759.795206f3.dokas@oitsec.umn.edu> on freebsd-pf@:

#v+
> So it's not that far off, the server seems to increment timestamps at
> 0.5 ms per tick (2 kHz), instead of the RFC mandated 1 ms (1 kHz).
[...]
Bingo (I think).  I found the following in the firewall's kernel config:
 =20
  options HZ=3D2000
#v-

regards,

--=20
w.

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