Re: [sshfs] Asymmetric speed ?

[Jelle de J. <jel...@po...>]

Miklos Szeredi wrote:
> Sorry about the late response...
> 
> On Wed, 7 Jan 2009, L'ami Nuscule wrote:
>> Is it a known issue that when doing `cp` to / from a sshfs mount ,  
>> the send / recieve speeds are NOT equivalent :
>>
>> Machine A as client
>> Machine B as server
>>
>> Directory of B mounted on A
>>
>> cp <file> from B to A : 46MBps
>> cp <file> from B to A : 8MBps
> 
> The direction is the same for both, I guess that's a typo.  So which
> is the fast one?
> 
>> The bandwidthes of the machines are symmetrical and equal.
>>
>>
>> On both machines :
>> ssh -v -> OpenSSH_4.3p2 Debian-9etch3, OpenSSL 0.9.8c 05 Sep 2006
>>
>> sshfs --version
>> SSHFS version 1.6
>> FUSE library version: 2.5.3
>> fusermount version: 2.5.3
>> using FUSE kernel interface version 7.5
> 
> Can you try verion 1.8 or later with the "-oworkaround=nodelaysrv'
> option?
> 
> Can you also try 'scp' and 'sftp' to copy the files to see if they
> give the same speed or not?
> 
> Thanks,
> Miklos
> 

Just some additional info, I also had the same problem. I could not get
high speeds with asymmetric connections.

The speed form client to server is very slow, the speed from server to
client was high enough. I did not solve or debug the issue, I just
disabled the async connection. I took me long enough to find that async
was the reason for the slow transfer rates to the server.

Just some extra info,

Best regards,

Jelle