I work on a linux 2.2.14 kernel to test the network
throughput of a linux box used as a firewall.
I find that when the IP packet length is 512B,the
throughput is the highest 71%. IP packet length is
smaller than 512B or bigger than 512B,the throughput
is the lower.
I don't know why this ? Can I have some solutions
to improve the throughput of linux box ?
Bergs
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On Wed, Mar 20, 2002 at 09:12:19PM -0800, Bergs wrote:
>
> I work on a linux 2.2.14 kernel to test the network
> throughput of a linux box used as a firewall.
>
> I find that when the IP packet length is 512B,the
> throughput is the highest 71%. IP packet length is
> smaller than 512B or bigger than 512B,the throughput
> is the lower.
>
> I don't know why this ? Can I have some solutions
> to improve the throughput of linux box ?
>
>
You'll need to post much more info about your hardware.
start with lspci and /proc/cpuinfo...
Also you didn't say how fast each packet size actually was, and did you use
a switch or what other type of network hardware.
Mike
On Wed, 20 Mar 2002 21:12:19 -0800 (PST), Bergs wrote:
>I work on a linux 2.2.14 kernel to test the network
>throughput of a linux box used as a firewall.
>I find that when the IP packet length is 512B,the
>throughput is the highest 71%. IP packet length is
>smaller than 512B or bigger than 512B,the throughput
>is the lower.
>I don't know why this ? Can I have some solutions
>to improve the throughput of linux box ?
I don't understand what you're measuring. Are you using TCP or UDP? If UDP,
what exactly are you measuring? If TCP, how are you changing the packet size?
Bergs wrote:
> I work on a linux 2.2.14 kernel to test the network
>throughput of a linux box used as a firewall.
>
you need to provide more details:-
where are you measuring your poor performance? from a machine
behind your firewall - or from the linux firewall itself?
how do you know the throughput is not being limited by the network?
mark