[Samba] massive performance problems if transferring many small files

Jeremy Allison jra at samba.org
Wed Feb 11 17:39:05 GMT 2004

On Wed, Feb 11, 2004 at 09:29:47AM +0100, Steffen Kauka wrote:
> You did suggest to try Samba 3 - I did it. My test environment consists of a
> PC (Pentium 4 2.4 GHz CPU and 512 MB RAM), a SUN Blade 100 (500 MHz CPU, 256
> MB RAM) and between both a switched network at a speed of 100 MBit/s. The
> smb.conf is the same as I mentioned in my initially posting. Unfortunately I
> couldn't recognize any significant difference between Samba 2.2.8a and Samba
> 3.0.1 :-( Now the good news! If I change the option 'preserve case' to 'yes'
> the transfer rate increases by about 550% and that's really ok.  I don't expect
> any problems in this case because the source data I want to transfer are
> lower case at all and UNIX-like. What do you mean with nasty implications? At
> the moment I can't imagine a case. 

Well this will work perfectly for your environment, where you have a read-only
data set whose filenames you control the case of. It won't work in the general
case where Windows apps create files though.


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