[linux-cifs-client] WebDAV vs CIFS

[Steven French]

WebDav is pretty slow if I remember correctly, but may be fine for your 
use since the link is slow anyway so you might not notice.  .   CIFS 
caching for oplocked (cached) files should be fine while the file is open 
but it does not keep a files cached copy in a file on the client's disk 
ala AFS (it instead it leverages the common Linux mm readahead/writebehind 
caching which is in memory caching).   I didn't think that WebDav cached 
safely (at least the Linux implementation) in any case so there may be 
issues with shared read/write access to the same file.    The current 
Linux CIFS implementation does not do offline file caching which might be 
helpful in your slow link environment (AFS may be better than either 
WebDav or CIFS if that is the key issue) although it ought to be able to 
do cache across close (which would help your environment).

Since WebDav does not have an in-kernel filesystem implementation (at 
least in Linux) there are quite a few semantic holes/problems that you run 
into but they may not matter if all you are doing is simple file copy.


Steve French
Senior Software Engineer
Linux Technology Center - IBM Austin
phone: 512-838-2294
email: sfrench at-sign us dot ibm dot com



"Juan Carlos Schroeder" <jcsc at adinet.com.uy> 
Sent by: linux-cifs-client-bounces+sfrench=us.ibm.com at lists.samba.org
08/17/2004 12:57 AM

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[linux-cifs-client] WebDAV vs CIFS






I would like to know opinions about whether CIFS is better than WebDAV,
specially having low bandwidth (eg: modem) connections.
Does current CIFS implementations have agressive caché use?

I've really not found comparisons between WebDAV and CIFS, so I ask here.

Thanks,
Juan Carlos



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