[Performance] Samba 3 vs. Samba 4 performance in NetBench

[Kaplan, Marc]

I should note that the reason I did the oplock on vs. oplock off tests
in Samba 3 is that tridge pointed out to me that Samba 4 doesn't have
oplock support yet. As you can see oplocks provide a huge performance
bump in the Samba 3 tests, and the oplock off test provides a good
baseline to compare Samba 4 against.

		-Marc

> -----Original Message-----
> From:
samba-technical-bounces+mkaplan=snapappliance.com at lists.samba.org
>
[mailto:samba-technical-bounces+mkaplan=snapappliance.com at lists.samba.or
g]
> On Behalf Of Kaplan, Marc
> Sent: Wednesday, June 08, 2005 5:42 PM
> To: tridge at samba.org; samba-technical at lists.samba.org
> Subject: [Performance] Samba 3 vs. Samba 4 performance in NetBench
> 
> List:
> 
> I decided it would be fun to compare performance of Samba 3 and Samba
4
> using the "industry standard" NetBench tool. I hope to update this
> periodically during the development of Samba 3 and Samba 4. Here are
> details of the setup:
> 
> Clients
>   * First 8 (higher performance clients): Gigabit P3-1GHz 256MB/RAM
>   * Last 52 (standard): 100Mbit P3-600MHz, 128MB/RAM
> 
> Note: I used this configuration to maximize performance and also to
> simulate both higher end and lower end clients in a network.
> 
> Server
>   * Pentium 4, 2.4GHz, 512MB RAM.
>   * Raid 0 on three WD 250GB ATA drives
>   * Broadcom Gigabit Network card
>   * SUSE Enterprise Linux 8, running a hand build 2.6.11.11 kernel
> 
> Samba configuration
>   * Samba 3 and Samba 4 smb.confs attached to this e-mail.
>   * Samba 3 SVN checkout from 6-4-05 @ 1AM GMT
>   * Samba 4 SVN checkout from 6-4-05 @ 9AM GMT
> 
> Note1: For the Samba 3 oplocks on and off tests I set the proper
> smb.conf options.
> Note2: For the xattrs test I made sure /Raid was mounted with
> user_xattr, and verified that attrs were getting set properly.
> Note3: For the eadb test I had posix:eadb = /eadbpath.tdb set in
> smb.conf and verified that attrs were getting set properly.
> 
> The results are attached in an Excel document (sorry, that's what
> NetBench spits out), that should you should be able to open in
> OpenOffice.
> 
> Attachments:
> smb.conf.samba3: The smb.conf I used for Samba 3
> smb.conf.samba4: The smb.conf I used for samba 4 (eadb was the last
test
> I ran so it's still set)
> Samba4vsSamba3.xls: Comparison of Samba 3 and Samba 4 performance in
> NetBench.
> 
> 		-Marc