On 05/08/2010 02:21 PM, Jack Vogel wrote:
The cable, its a simple thing but make SURE you try that, a slightly
damaged one can do weird things and its quick to check, don't overlook
it.
Jack
On Sat, May 8, 2010 at 10:22 AM, joe <j...@hostedcontent.com
<mailto:j...@hostedcontent.com>> wrote:
On 05/08/2010 01:53 PM, Jack Vogel wrote:
I still am not clear on this system, how many ports are on it,
and its
an 82576?
Sounds to me like you've proven its not on the box if you can do
fine
when its
on its own. So change ports in the switch, as I said, change
cables, must be
something in that environment.
Jack
On Sat, May 8, 2010 at 10:04 AM, joe <j...@hostedcontent.com
<mailto:j...@hostedcontent.com>
<mailto:j...@hostedcontent.com <mailto:j...@hostedcontent.com>>>
wrote:
On 05/08/2010 01:31 PM, Jack Vogel wrote:
Looks like something to do with system C, you might
isolate it,
and try
a back
to back connection with its NICs, change cables, look at
BIOS
settings,
change
the slot the nic is in... All just off the top of my head.
Jack
On Sat, May 8, 2010 at 9:41 AM, joe
<j...@hostedcontent.com <mailto:j...@hostedcontent.com>
<mailto:j...@hostedcontent.com <mailto:j...@hostedcontent.com>>
<mailto:j...@hostedcontent.com <mailto:j...@hostedcontent.com>
<mailto:j...@hostedcontent.com <mailto:j...@hostedcontent.com>>>>
wrote:
On 05/08/2010 11:17 AM, Ian FREISLICH wrote:
joe wrote:
On 05/08/2010 06:55 AM, Ian FREISLICH wrote:
joe wrote:
I have just tried your
suggeston and
it has
no effect for me ;(
Do you have another brand of NIC that
you can
try? At
least that
will isolate whether it's igb(4) or
something else.
I will grab a new nic today and try...my
options are
limited
though.
Here are the nics i can get my hands on
TP-LINK TL-TG3468, 10/100/1000Mbps PCIe Adapter
(supported
by fbsd?)
Based on the RTL8168B chip. Should be supported
by the
re(4)
driver.
Intel (EXPI9301CT) Gigabit CT Desktop
Adapter (yet
another
intel nic)
i82574L chip. Should be supported by the em(4)
driver.
I have had
good performance in the past with this driver
and less than
satisfactory performance with the igb(4) driver.
That may not be your problem though. Before you
go out
and buy,
have a look at the amount of interrupt time your
slow
machine spends
in 'top' or 'systat -vm'. systat will also show the
interrupt rate
for each driver, perhaps it's not doing
interrupt moderation
properly.
This will manifest as more than about a 1000 per
second.
There are
loader tunables for the driver to increase the
number of
transfer
descriptors and to tune interrupt moderation.
You could try running trafshow (port) on the
interface while
performing the transfer. Perhaps promiscuous
mode will
turn off
some hardware feature that will improve things.
It may
however
break hardware vlanning as it does on my 82575GB
4 port
igb card.
Ian
--
Ian Freislich
I bought those two cards anyways, im in a rush to
figure out
this
problem. That being said i am still encountering the
exact same
problem regardless on which network card i am
running. I am at a
complete loss. I am about to try a raid card to see
if the
problem
might lay within the onboard sata ports. I did pull the
server and
brought it home so that i can test more things quicker.
I am going to try using a raid card instead of the
onboard sata
ports and see if i still encounter the same problem.
I would
love
any suggestions you may have on where to go from here to
figure out
where the problem might be.
joe
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I think it might have something to so with the nics /
switch, and
their features. I brought the box home, plugged into my gb
switch,
and i am able to FTP data to the server at around 35MB/sec.
I dont know what would cause this other than some sort of
issue with
the the 3 different types of nics and the switch i am using.
Any suggestions?
There are two embedded intel 82576 nics on this motherboard. I do
believe i have proven it is not the box itself as it is capable of
high incoming throughput. I have other servers on the switch which
do 55MB/sec without issues. I believe it is a combination of this
server and/or the nics i have and the switch i am using. It's the
only logical explanation if i get the desired throughput on my home
switch but not on the switch that is collocated. I will try updating
the firmware of the switch tonight as well as bringing the switch i
use at home with me.
Here is a follow-up just incase anyone ever encounters this problem
again. I updated the firmware on the switch, made sure jumbo packets
were enabled, and the switch was restarted. I'm now seeing the
throughput i had expected on this box!
897755008 bytes received in 00:11 (72.74 MB/s)
Once again, thank you all for the help!
Joe
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