----- Original Message ----- From: "Claus Lund" <[EMAIL PROTECTED]> To: "William Jojo" <[EMAIL PROTECTED]>; "Jeremy Allison" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]>; <[email protected]> Sent: Wednesday, May 10, 2006 2:29 PM Subject: RE: [Samba] Performance issue on AIX when deleting files in a directory with a large number of files
> Hi Bill, > > I already tried updating AIX. > I'm on 5300-04 (only a couple of security related fixes added since the tech > level) on my production box (we're using Samba 3.0.21a on that box). And I'm > on the latest Technology Level + all the latest fixes on my test box (and > that's where I currently have 3.0.22). > > Both machines are setup with JFS2 and neither use inline logs. > > I am not all that familar with debugging tools like truss (I haven't really > done any real programming since my college days ... 6-7 years ago). But I > just ran: > truss -f -o /datavg/smb_truss.out /opt/Samba/3.0.22/sbin/smbd -D > > I used Windows Explorer to browse to my test directory (with about 30K files > in it), highlighted all the files and hit delete. I let it delete a few > files and then cancelled. The truss file is about 185MB (4MB zipped). Do you > have a place where I can upload that? > You can mail me the zip directly off-list, unless Jeremy or Volker wish to look at it as well... Bill > -Claus > > > > > > > > > But the nfs or local access isn't performing the same access pattern > > > > that Samba is by being driven by the client. I'm guessing that if you > > > > performed the same actions locally that the client is requesting > > > > Samba perform you'd get the same results (in fact you *must* - as > > > > all of Samba is userspace, there's no magic in what Samba is doing > > > > here - it's doing what the client requests from userspace). > > > > > > > > My money is still on the kernel, as driven in this access pattern. > > > > > > > > > > Yep. I'd be curious what a truss of a smbd process shows for access on > > that > > > filesystem. > > > > > > Is this jfs2 using an inline log? Just curious... > > > > > > > Claus, can you run "oslevel -r" and send me the results. I think this may > > have been fixed in 5300-03. > > > > 5300-04-3 is available, I'd consider that as well... > > > > > > Cheers, > > > > Bill > > > > -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/listinfo/samba
