Volker Lendecke put forth on 9/18/2010 12:44 AM: > On Sat, Sep 18, 2010 at 12:22:53AM -0500, Stan Hoeppner wrote: >> Pol Hallen put forth on 9/15/2010 9:36 AM: >> >>> debian stable (samba version 2:3.2.5-4lenny9) >>> >>> from clients by ftp the transfer of huge file is about 10/11Mb/s (with an >>> ethernet 10/100) >>> >>> by samba came 5/6Mb/s >>> >>> is it correct? >> >> Good luck. It appears that tuning smbd and clients, both Windows and >> smbclient, to get anywhere close to wire speed is somewhat of a black >> art. I asked the same question many months ago, and dropped the subject >> after Jeremy said it had to be a problem with the W2K redirector. Funny >> thing is, that same W2K redirector can pull at almost wire speed from a >> WinXP box. The most I've ever been able to get out of smbd is ~8MB/s. >> I'm running 3.2.5-4lenny12. To get anything better than that I'll have >> to go to GigE. I probably won't get anywhere close to wire speed, but I >> should get at least 30-40MB/s, which is 4-5 times what I get now, and >> would thus be a huge improvement for relatively little cost--a few NICs >> and a decent desktop GigE switch can be had for around $100 USD. Even >> without using jumbo frames this would be a huge improvement over 100FDX. > > As always: What about get/put of large files with smbclient, >= 3.2?
Hi Volker. I don't have a Linux client machine to test smbclient against my Debian/Samba server. However, running smbclient (3.2.5) on the server and connecting to shares on a WinXP machine and W2K Pro machine hits 11 MB/s (near wire speed of 12.5) all day long with GETing moderate to large files (30MB+). PUTing the same files maxes out at ~6MB/s--very lopsided. I've tried various smbclient -O socket options with no effect on PUT performance. Copying from an smbd share to the Windows machines maxes at 9MB/s. Copying from the Windows machines to an smbd share yields 8MB/s--much more consistent than smbclient. It sure would be nice to have smbclient's 11MB/s GET speed in both directions with all OSes involved. I've tried every option and optimization in smb.conf and the registries of both Windows machines and can't get over 9MB/s. It's sure better than the 5MB/s come people report, so I'm not complaining. It's kinda academic anyway, because the bulk of our transfers to/from smbd are large quantities of small files (< 1MB). Such transfers can crawl at less than 1MB/s. Like I said, I think the best solution for me would be to move to GigE. -- Stan -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/options/samba
