Have you posted this information on the Samba list? I've currently got a thread going where I have posted benchmark results after making various changes.
So far I have been concentrating on read performance but I'll start getting some write benchmarks today. I'm currently using ext3. I got a test hard drive that I'll be trying XFS and riserfs on. I really have no idea why I can't get better read performance. I'm stuck at 7-7.5MB/sec. I find it really hard to believe that the protocal has that kind of overhead. I can currently get 10.5MB/sec when transfering the same info using FTP... Do you have any results to share? > Hello All, > > I have been doing some research to find a method to increase the > performance of writes to the hard drives in my servers. I am running > Samba and all writes to the server hard drives are taking at least 3 to > 10 times (It varies) the amount of time it took to write such files on > our older Windows NT 4.0 File Server. > > The following information is provided to keep this issue on > track... > > It is not a NIC or network issue. Reads of files from those > drives take place almost instantly. I have been able to copy an entire > 700MB CD-ROM ISO image off of the server in less then 3 minutes, yet > writing a 5 MB file to the server will take approximately the 3 minutes, > or more. I have also optimized the smb.conf file as best as it can be. > This resulted in a gain of approximately 15 seconds. > > This happens regardless of how busy the server is in serving > files to other users as I have tested this while all PCs were in use on > the network and also when none were in use. > > In some of my searching, I have read that ReiserFS has faster > write performance then Ext3FS. So, I blew away the "share" partition on > our test server, recreated that with ReiserFS and rebuilt the share. So > far, I have only seen a few seconds of speed increase. (The other odd > thing is that the Windows Explorer file copy progress bar is much more > consistent to the ReiserFS share then the ext3fs share.) > > I have a few ideas about why there is a slowdown and a few ideas > of what could possibly increase performance. However, I am at a loss as > to how to implement those changes or how to verify that they are even > possible. (Except by asking this list.) > > My Google searches have come up dry with actual methods (ie. > Commands to look at or actually use.) to implement some performance > enhancements. All they say are things like, change ext3fs's method of > writing the journal from the stock "conservative" method to the much > faster, yet slightly dangerous, method. There is just no mention of how > that is done. I have read through the man pages and there is nothing > that leaps out and says, "This is the command that alters the ext3fs > journal method." > > From what I read, so far, about the two journaling methods it is > a VERY acceptable risk for the potential performance increase. (It is > even more acceptable if it can be setup only to affect the share > partition, which is also its own separate drive.) > > There are a few other ideas that I have, but after thinking > those over, they would likely be far more of a hassle then they would be > worth. > > Are there any suggestions for increasing HD Write performance, > while still using a journaling FS? At this time, I do not have the > resources and additional funds to rebuild the hard drives using XFS or > JFS. So, it has to be ReiserFS or ext3fs. > > Thanks for any assistance! > > Regards, > Robert Adkins II > IT Manager/Buyer > Impel Industries, Inc. > 586-254-5800 > > > > > -- > redhat-list mailing list > unsubscribe mailto:[EMAIL PROTECTED] > https://listman.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED] https://listman.redhat.com/mailman/listinfo/redhat-list
