From: Stephen Hemminger <shemminger@linux-foundation.org>
To: Sami Farin <safari-kernel@safari.iki.fi>
Cc: Linux Networking Mailing List <netdev@vger.kernel.org>
Subject: Re: updated tcatm patches for kernel/iproute 2.6.22
Date: Wed, 18 Jul 2007 23:39:15 +0100 [thread overview]
Message-ID: <20070718233915.5c90a648@oldman> (raw)
In-Reply-To: <20070718210638.bs44zz4veowqf2kr@m.safari.iki.fi>
On Thu, 19 Jul 2007 00:06:38 +0300
Sami Farin <safari-kernel@safari.iki.fi> wrote:
> I got tired of getting 15% packet loss [1] when doing
> lots of DNS lookups on my ADSL link...
> And that was even when limiting outgoing DNS traffic
> to 200 Kbit/s (ADSL modem upstream speed is 512 Kbit/s).
>
> I had used tcatm patch with 2.6.16 kernel and I was
> happy with it.
> Now I patched Linux kernel 2.6.22 and iproute-2.6.22
> for tcatm. Seems to work (TM). Only HTB tested.
>
> Now I get 0% packet loss when doing lots of DNS queries
> (270pps) and DNS traffic is limited with
> HTB/ESFQ to 504Kbit/s. I used "tc class add ... atm overhead 20"
> but I am not sure is it really 20 (Sonera in Finland).
> Without tcatm I had to have there 420Kbit and it still sucked.
>
> I keep patches at
> http://safari.iki.fi/tcatm/
>
> I read one thread from this year where there were objections
> about tcatm's some parts and then discussion petered out...
> I and probably Russell Stuart would probably like to get
> these patches fixed so that everyone is pleased
> and these can be incorporated into kernel some year,
> because I believe ADSL is very popular nowadays ( =) )
> and people would probably like if traffic control was
> actually usable for them ( =) )...
>
> [1] ping -A 80.223.96.1
My concern is that this would cause the existing users of TBF and
other qdisc's. If you don't choose ATM do you get the same values?
next prev parent reply other threads:[~2007-07-18 22:40 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-18 21:06 updated tcatm patches for kernel/iproute 2.6.22 Sami Farin
2007-07-18 22:39 ` Stephen Hemminger [this message]
2007-07-18 22:58 ` Patrick McHardy
2007-07-19 11:35 ` Sami Farin
2007-07-19 13:22 ` Patrick McHardy
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