Date: Tue, 10 Feb 2004 07:08:09 -0500 From: Chuck Swiger <cswiger@mac.com> To: Bjorn Eikeland <bjorn@eikeland.info> Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Re: dummynet = local taffic > 100ms - help! Message-ID: <4028C9A9.7090503@mac.com> In-Reply-To: <opr24pm6dnomdbx5@localhost> References: <opr24pm6dnomdbx5@localhost>
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Bjorn Eikeland wrote: [ ... ] > DUMMYNET and HZ=10000 is in the kernel. > > Any suggestions what can be causing this? (I've only got the one nic, > and use a adsl router for internett) I seem to recall some issues with setting HZ very fast, in that it breaks the uniqueness assumptions made by TCP sequence generation if HZ > 1000. Dummynet does want better than the standard 10ms granularity (HZ=100), so perhaps you might try HZ=1000 and see whether that makes any difference. You might also consider increasing the queue length of your pipes when using prioriziation--- are you seeing packets being dropped? -- -Chuck
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