[Samba] Samba Performance question

Noel Kelly nkelly at citrusnetworks.net
Fri Dec 6 10:14:01 GMT 2002

Someone else might well know better but....
I believe this is a file system issue.  ext2/ext3 manipulate the directory
entries using lists so if you have a great many files in one directory you
will see performance issues as you describe.
The answer to this is to change filesystem - no mean feat with your data
sizes.  Filesystems like XFS and ReiserFS use binary trees to manipulate the
directory entries and it is a far faster way of doing things with crowded
directories so you should see an improvemnet.
I suppose an alternative short term solution is to get the users to break
large directories up into small ones if the data lends itself to it.
-----Original Message-----
From: Belgardt, Wolfgang [mailto:Wolfgang.Belgardt at hp.com]
Sent: 05 December 2002 20:45
To: samba at samba.org
Subject: [Samba] Samba Performance question

Dear all,
I have a difficult Problem with samba 2.2.5, I hope everyone can help me.
My customer has samba 2.2.5 running on a HP Alpha Server ES40 Cluster with
Tru64 V5.1. The share on this Server has  3.1 million files in  16000
Some one this directories have 45000 files on it.
The problem is: if we try a search a file from this  big directory  via an
NT Client the response time is to large for the the customer.
He has run an similar application on a NT File server. NT responded after 1
sec  and samba need 6 sec.
Can someone explain me what I can do to increase the performance, please?
Kind Regards / Mit freundlichen Grüssen 
Wolfgang Belgardt
Customer Support Consultant
Hewlett-Packard GmbH
Customer Support
Bonsiepen 5
D-45136 Essen
Phone: ++49 (0) 201 2663 258
Fax:     ++49 (0) 201 2663 200
mobil:   +49 (0171 3357 256)
E-mail:   Wolfgang.Belgardt at hp.com <mailto:Wolfgang.Belgardt at hp.com> 
http://www.hp.com/de <http://www.hp.com/de> 
Hewlett-Packard GmbH
Geschäftsführer: Jörg Menno Harms (Vorsitzender), Jürgen Banhardt, Wolfram
 Rainer Kaczmarczyk, Bärbel Schmidt, Fritz Schuller, Regine Stachelhaus
Vorsitzender des Aufsichtsrats: Heribert Schmitz 
Sitz der Gesellschaft: Böblingen, Amtsgericht Böblingen HRB 4081
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