[mythtv-users] NFS and remote backend

[Brian]

jongi wrote:
> David Brodbeck wrote:
>>
>> On Jan 1, 2008, at 8:31 AM, jongi wrote:
>>
>>> Mike Barnard wrote:
>>>>
>>>>> Both systems are F8 but the nfs is painfully slow between them. ftp 
>>>>> though runs at over 1MB/s and nfs is nowhere near that speed. so 
>>>>> when i run the videos on the remote frontend they are often jerky. 
>>>>> Without the nfs share I found that I couldn't find the 
>>>>> records/videos on the remote backend. Is there something I am missing?
>>>>
>>>>     1MB/sec is painfully slow for FTP, at least on a 100 megabit 
>>>> network. You should be seeing close to 10 times that. Are you sure 
>>>> your network cables are good? I've seen badly-wired homemade cables 
>>>> hose up a connection like this. Of course, there are lots of other 
>>>> possibilities as well.
>>>>
>>>> ------------------------------------------------------------------------
>>>>
>>>> _______________________________________________
>>>> mythtv-users mailing list
>>>> mythtv-users at mythtv.org
>>>> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>>>>   
>>> it's via wireless. the computer that serves as the master be/fe is 
>>> downstairs and on the other side of the house
>>
>> Could you post the /etc/exports and /etc/fstab lines you're using? 
>>  Maybe you need to tweak your NFS options.
>>
>> ------------------------------------------------------------------------
>>
>> _______________________________________________
>> mythtv-users mailing list
>> mythtv-users at mythtv.org
>> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>>   
> /etc/fstab
> 
> 10.0.0.3:/nfs4exports/share1    /mnt/mythtv/media/      nfs             rw
> 
> /etc/exports
> 
> /nfs4exports/share1/   *(rw,async,all_squash)
> 
> 
> ------------------------------------------------------------------------
> 

You can try by increasing the buffer size by adding rsize=$kb,wsize=$kb 
in the options section where $kb is the amount of buffer in kilobytes. 
IIRC, Linux kernels over 2.4 default to an 8k buffer. Maybe try 32k 
($kb=32768)?

I've found that SCP, NFS and Samba all operate at the same speed (pretty 
much). I'm not sure how FTP speed places in that group. Maybe try a test 
using SCP to isolate if it's a network problem or NFS problem?

HTH,

-Brian