Thank you for the reply
centos@client:/tmp/butta$> bin/iperf -c angel
------------------------------------------------------------
Client connecting to angel, TCP port 5001
TCP window size: 16.0 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.53.103 port 39744 connected with 192.168.53.105 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 1.10 GBytes 943 Mbits/sec
I will do some extra test
Thank you for your help
On Thu, Apr 8, 2010 at 11:12 AM, Matija Nalis <mnalis+bacula AT carnet DOT hr>
wrote:
> On Thu, Apr 08, 2010 at 10:55:55AM -0400, Il Neofita wrote:
>> Any Idea? What I should check
>>
>> On Wed, Apr 7, 2010 at 1:04 PM, Il Neofita <asteriskmail AT gmail DOT com>
>> wrote:
>> > Thank you for all the replies
>> > The bottleneck is the network or at lest something in the network
>> > and yes I have an autoloader LTO4
>> >
>> > If I use NC with a file of 10M I need 8 seconds to transfer
>> > If I use scp I need around 2 seconds
>> >
>> > The same file without compression
>
> it sounds very strange, the scp should be slower (or at best same
> speed) as it needs additional step of encrypting data.
>
> It could only be faster if it is (maybe by default) doing ssh
> compression of data on the fly, so it has less data to transfer.
>
> Also, are you sure you're correctly droping caches before each test ?
>
> Because if you run nc test first, and scp seconds, scp will have
> advantage of not having to access disk at all to read the file (as it
> will probably be in cache).
>
> Can you show exact commands and outputs you get to conduct those
> tests (use script(1) or something to capture it) ?
>
> you could also try using iperf(1) to measure network bandwidth
> between SD and FD.
>
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