[LARTC] P4 dual core vs AMD64 dual core with HTB

[LARTC] P4 dual core vs AMD64 dual core with HTB

[foxy 202]

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Hi All,

Please for some advice.

I have Linux router that do traffic control with HTB , routing and traffic
counting.
currently machine is with P4 2.2GHZ 1GB RAM. I plan to migrate to dual core
CPU. I know well
P4 dual core but is it anybody has experience with AMD64 dual core / or
single core /  for traffic control . I use Deban Linux for my router. Can I
expect problems with HTB and iproute 2 over ATHLON DUAL CORE/BOX or single
box ?
Currently my problem is that i have too big system load over CPU / 60-80%/
and packet dropping. at every 15-20sec i have traffic freeze for 1-2sec.
when more users are online.


Regards
foxy202

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Re: [LARTC] P4 dual core vs AMD64 dual core with HTB

[Paul M.]

In general the dual core Opterons tend to be a lot faster than the P4
dual cores. But its possible that this has changed since I last saw a
performance comparison of the two.
-Paul


On 1/30/06, foxy 202 <foxy202@gmail.com> wrote:
>
>
> Hi All,
>
>  Please for some advice.
>
>  I have Linux router that do traffic control with HTB , routing and traffic
> counting.
> currently machine is with P4 2.2GHZ 1GB RAM. I plan to migrate to dual core
> CPU. I know well
> P4 dual core but is it anybody has experience with AMD64 dual core / or
> single core /  for traffic control . I use Deban Linux for my router. Can I
> expect problems with HTB and iproute 2 over ATHLON DUAL CORE/BOX or single
> box ?
> Currently my problem is that i have too big system load over CPU / 60-80%/
> and packet dropping. at every 15-20sec i have traffic freeze for 1-2sec.
> when more users are online.
>
>
>
>
> Regards
> foxy202
>
> _______________________________________________
> LARTC mailing list
> LARTC@mailman.ds9a.nl
> http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
>
>
>
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Re: [LARTC] P4 dual core vs AMD64 dual core with HTB

[Carl-Daniel Hailfinger]

Hi,

foxy 202 schrieb:
> 
> I have Linux router that do traffic control with HTB , routing and traffic
> counting.
> currently machine is with P4 2.2GHZ 1GB RAM. I plan to migrate to dual core
> CPU. I know well
> P4 dual core but is it anybody has experience with AMD64 dual core / or
> single core /  for traffic control . I use Deban Linux for my router. Can I
> expect problems with HTB and iproute 2 over ATHLON DUAL CORE/BOX or single
> box ?
> Currently my problem is that i have too big system load over CPU / 60-80%/
> and packet dropping. at every 15-20sec i have traffic freeze for 1-2sec.
> when more users are online.

An Athlon64 3200+ should be sufficient for 200-400 MBit/s in each direction
with HTB and traffic accounting. At least it works for me. However, if you
start using tcpdump, your CPU usage will go through the roof.

Suggestion: Use oprofile and find out what demands the most performance in
your setup, then fix that and retest.


Regards,
Carl-Daniel
-- 
http://www.hailfinger.org/
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Re: [LARTC] P4 dual core vs AMD64 dual core with HTB

[Paweł Staszewski]

>Hi All,
>
>Please for some advice.
>
>I have Linux router that do traffic control with HTB , routing and traffic
>counting.
>currently machine is with P4 2.2GHZ 1GB RAM. I plan to migrate to dual core
>CPU. I know well
>P4 dual core but is it anybody has experience with AMD64 dual core / or
>single core /  for traffic control . I use Deban Linux for my router. Can I
>expect problems with HTB and iproute 2 over ATHLON DUAL CORE/BOX or single
>box ?

I have dual core p4 (64bit compiled) with hfsc configuration for 4500users 
CPU load on this machine is about 20% Average with 60Mbit/s traffic
 

I also want to know did the AMD (Opteron) will be better for such solution like traffic management :)



>Currently my problem is that i have too big system load over CPU / 60-80%/

How many users You have ?
How many pps on interfaces ?
How large is traffic load (data) , what kind of traffic ?
Did You use hashing filters for traffic management (filtering) ?
Is this machine is doing NAT or any of iptables things ?


>and packet dropping. at every 15-20sec i have traffic freeze for 1-2sec.
>when more users are online.


What type of interfaces You have ?
Did You use NAPI if available ?



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