Re: Network ssh tunneling speed test
The speed of your file transfer is influenced also by the medium on
which it's getting transfered. So if you're on a busy network, your
timing may not be accurate; unless that's your intention( test on a busy
network ) . It may be the case of a faulting network device, that's of
course not intended...
Is there a difference in sending an ASCII file over sending a JPEG ?
I don't think so, but I am not an expert in encryption.
Radu
Marco Calviani wrote:
> Thanks however,
> now i've increased from 1.5 MB/s to 2.1 MB/s switching from 3des to
> blowfish. As i understood there is not so much difference in security
> profile between these two algorith.
>
> Regards,
> MC
>
> Radu Brumariu wrote:
>
>> So why don't you do something like this :
>>
>> time scp -c <alg> file1 user@machine:
>>
>> It wil tell you the time spent in user space / kernel space , etc.
>>
>> It's still not clear what exactly you are trying to measure, and this
>> thing won't do for you. If you want intimate information from scp, such
>> as how much time it spends in a certain routine, then recompile ssh with
>> profiling support and run the above commands inside gprof .
>>
>>
>> Radu
>>
>> Marco Calviani wrote:
>>
>>
>>
>>> Robert Vangel wrote:
>>>
>>>
>>>
>>>> Marco Calviani wrote:
>>>>
>>>>
>>>>
>>>>> Thanks for your help, but i need some more precise benchmark other
>>>>> than this. I wonder if there exists some "time" command. I'll try
>>>>> googling another time.
>>>>>
>>>>> Regards,
>>>>> MC
>>>>>
>>>>>
>>>>
>>>> What do you mean more precise? Once the file(s) have finished
>>>> copying, it tells how the speed of each file and how long each one
>>>> took...
>>>>
>>>
>>> There is a large spread of speed if you repeat the measure over time.
>>> I did not know on what it depends. I would like a more appropriate
>>> tool, to have a look at the various connections that occur. For
>>> example different speed with different crypto algorithm....
>>>
>>> Regards,
>>> MC
>>>
>>>
>>>
>>
>>
>>
>>
>>
>
>
--
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