Re: em driver performance
"James L. Lauser" <[email protected]>
| Newsgroups | gmane.comp.security.firewalls.m0n0wall |
|---|---|
| Message-ID | <[email protected]> |
Ah, that would make sense, then. The machine does only have a PCI bus.
So if that's the case, is my only real option to upgrade to a faster CPU?
-- James L. Lauser
[email protected]
http://jlauser.net/
On 05/01/2011 04:45 PM, Lee Sharp wrote:
> On 05/01/2011 04:28 PM, James L. Lauser wrote:
>> Hi.
>>
>> I have a m0n0wall system configured with a Pentium III 933 MHz CPU and
>> three network interfaces (Intel Pro/100 (fxp driver) for the WAN, and a
>> dual-interface Pro/1000 (em driver) for the LAN and DMZ). When
>> transferring data between the LAN and DMZ subnets, I'm seeing somewhat
>> odd performance.
>>
>> With polling _OFF_, I can move about 200 Mbits/sec (clocked with iperf)
>> between subnets before pegging the CPU. This is not completely
>> unexpected. When I turn polling on, however, throughput DROPS to about
>> 140 Mbits/sec, with CPU topping out at about 60%.
>
> What is it plugged into? You may be maxing out the buss if it is PCI,
> old style. Polling generates more traffic on the buss.
>
> Lee
>
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