[geeks] Network Slowness
Sridhar Ayengar
ploopster at gmail.com
Thu May 24 15:56:51 CDT 2007
Caleb Shay wrote:
>>>>> What protocol are you using for transfers? SSH? FTP?
>>>> OpenSSH SFTP using Blowfish ciphers.
>>>>
>>> SSH has a massive overhead in processing, data size, and checksumming,
>>> you can't use that for your testing. For raw throughput, use
>>> something like netcat
>> Massive enough to slow a 1000Mbps connection to below 50Mbps? No way.
>
> Yes way. That is why there are high-performance-networking patches
> for openssh[0]. It's not network overhead, it's CPU time overhead.
>
> [0] http://www.psc.edu/networking/projects/hpn-ssh/
I'm going to try this code. This shit is pissing me off.
Peace... Sridhar
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