* The network performance of linux
@ 2002-03-21 5:12 Bergs
2002-03-21 5:20 ` Mike Fedyk
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Bergs @ 2002-03-21 5:12 UTC (permalink / raw)
To: linux-kernel
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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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^ permalink raw reply [flat|nested] 4+ messages in thread* Re: The network performance of linux
2002-03-21 5:12 The network performance of linux Bergs
@ 2002-03-21 5:20 ` Mike Fedyk
2002-03-21 9:05 ` David Schwartz
2002-03-21 20:42 ` Mark
2 siblings, 0 replies; 4+ messages in thread
From: Mike Fedyk @ 2002-03-21 5:20 UTC (permalink / raw)
To: Bergs; +Cc: linux-kernel
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
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: The network performance of linux
2002-03-21 5:12 The network performance of linux Bergs
2002-03-21 5:20 ` Mike Fedyk
@ 2002-03-21 9:05 ` David Schwartz
2002-03-21 20:42 ` Mark
2 siblings, 0 replies; 4+ messages in thread
From: David Schwartz @ 2002-03-21 9:05 UTC (permalink / raw)
To: flygong, linux-kernel
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?
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: The network performance of linux
2002-03-21 5:12 The network performance of linux Bergs
2002-03-21 5:20 ` Mike Fedyk
2002-03-21 9:05 ` David Schwartz
@ 2002-03-21 20:42 ` Mark
2 siblings, 0 replies; 4+ messages in thread
From: Mark @ 2002-03-21 20:42 UTC (permalink / raw)
To: Bergs; +Cc: linux-kernel
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
^ permalink raw reply [flat|nested] 4+ messages in thread
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2002-03-21 5:12 The network performance of linux Bergs
2002-03-21 5:20 ` Mike Fedyk
2002-03-21 9:05 ` David Schwartz
2002-03-21 20:42 ` Mark
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