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Old 08-14-2008, 12:55 AM   #1
babag
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Registered: Aug 2003
Posts: 365

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how to troubleshoot network speed?


mandriva user here. not an admin by any means but i can muddle
through with help.

i have a small network set up to process timelapse photos i've
been shooting. i capture on an xp box and use a small mandriva
box as an admin station between the xp box and a couple of
other mandriva boxes which do the processing.

i have samba set up on all of the mandriva boxes. on the mandriva
admin box, i log into all the others and copy files to the
processing boxes from the xp box.

it's a gigabit network but my transfers seem very slow. how
would i begin to troubleshoot the speed issue?

one bit of info, there is also a macpro in the network. when i
manually grab files using the macpro, the speeds seem much better.
the transfers are handled by a bash script when initiated from
the mandriva admin box.

the admin box is an old p3 i think.
the processing boxes are all p4's

all have matching trendnet gigabit ethernet cards.

thanks for any tips on how to get started sorting out the
bottlenecks here,

BabaG
 
Old 08-14-2008, 01:02 AM   #2
grepmasterd
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Registered: Aug 2003
Location: Seattle
Distribution: ubuntu, lately
Posts: 182
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this could be an application problem (samba) or a network issue. verify the network first using a tool like netperf or iperf. If you get good results there, then try playing with the samba directive
socket options = TCP_NODELAY
(for example, comment it out)
 
  


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