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Re: IMQ again WAS(Re: iptables breakage WAS(Re: dummy as IMQ replacement

To: hadi@xxxxxxxxxx
Subject: Re: IMQ again WAS(Re: iptables breakage WAS(Re: dummy as IMQ replacement
From: Andy Furniss <andy.furniss@xxxxxxxxxxxxx>
Date: Sun, 27 Mar 2005 20:35:21 +0100
Cc: Harald Welte <laforge@xxxxxxxxxxxx>, Patrick McHardy <kaber@xxxxxxxxx>, Remus <rmocius@xxxxxxxxxxxxxx>, netdev <netdev@xxxxxxxxxxx>, Nguyen Dinh Nam <nguyendinhnam@xxxxxxxxx>, Andre Tomt <andre@xxxxxxxx>, syrius.ml@xxxxxxxxxx, Damion de Soto <damion@xxxxxxxxxxxx>
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jamal wrote:

I'll have to re-run a test I did recently which was lots of tc filter matches at 8000pps - on egress IMQ was almost as good as directly on eth0. On ingress it was more than 10X worse.

How many filters? I wont suspect any difference between ingress and egress.

You are right - the test was to blame.

I was using my old PC as sender, it's frozen in time at 2.4.20 which for some reason has a txqueuelen on eth0 of 0. It doesn't show using netperf when just testing LAN speed - but makes alot of difference for the test I did - ifconfig eth0 txqueuelen 1000 fixed it.

Andy.

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