fish:// transfer speed slow in one direction

[Anton Rolls]

Hi James,

James Gray wrote:
> Anton Rolls wrote:
>> Hi,
>>
>> I've got a strange problem transferring files
>> between Kubuntu Feisty machines using fish://
>> in Konqueror.
>>
>> When files were transferred from the client
>> to the server, the transfer speed was ~1.1MB/s.
>> When files were transferred the other way,
>> from server to client, it went at about 8.1MB/s.
>>
>> Does this ring any bells ?
> 
> The kio "fish" is painfully slow.  The problem is in the KDE code, not 
> your network.  I see the same thing on a gigabit network between a pair 
> of high-end machines (many cores, hardware RAID, lots of RAM):
> 
> CLIENT       SERVER    SPEED
> FISH    <--> SSH       1-2Mbps
> SSH/SCP <--> SSH       700-800Mbps
> 
> When using KIO handlers (specifically CIFS/SMB/FISH/SFTP) I've noticed 
> the throughput really suffers compared to either dedicated clients or 
> command line utilities for the same protocols.
> 
> You may notice your CPU utilisation is comparatively much higher with 
> the "fish" handler compared to using scp/sftp etc.
> 
> Cheers,
> 
> James

Ok, good to know, thanks for your response,
Next step is to figure out why it's like that.

Regards,

Anton.