On 5/11/06, Jeremy Allison [EMAIL PROTECTED] wrote:
On Wed, May 10, 2006 at 12:29:53PM -0400, Claus Lund wrote:
Well, then Windows Explorer is braindamaged as well (which is a claim I
won't contest ;) )... because it's slow deleting files right through
Explorer as well.
Yep - I completely
On Fri, May 12, 2006 at 12:50:37AM +1000, James Peach wrote:
On 5/11/06, Jeremy Allison [EMAIL PROTECTED] wrote:
On Wed, May 10, 2006 at 12:29:53PM -0400, Claus Lund wrote:
Well, then Windows Explorer is braindamaged as well (which is a claim I
won't contest ;) )... because it's slow
sounds like samba is recreating the directory hash for change notifies
It only does that every 30 seconds or so - so I don't think that is
the problem (although turning if off might prove me wrong).
Jeremy.
How can I turn that off?
I'm willing to do any testing on this issue that you
- Original Message -
From: Jeremy Allison [EMAIL PROTECTED]
To: James Peach [EMAIL PROTECTED]
Cc: Jeremy Allison [EMAIL PROTECTED]; Claus Lund [EMAIL PROTECTED];
samba@lists.samba.org; [EMAIL PROTECTED]
Sent: Thursday, May 11, 2006 11:30 AM
Subject: Re: [Samba] Performance issue on AIX
On Thu, May 11, 2006 at 11:37:50AM -0400, Claus Lund wrote:
sounds like samba is recreating the directory hash for change notifies
It only does that every 30 seconds or so - so I don't think that is
the problem (although turning if off might prove me wrong).
Jeremy.
How can I
On Thu, May 11, 2006 at 11:45:34AM -0400, William Jojo wrote:
I'm looking into this here. Are you referring to stat cache? I've
confirmed that 150k statx's are being done after each delete request. I
mocked it up here on JFS2 and JFS. I'm mocking is up now in FC3/4 on ext3 to
see if this is
sounds like samba is recreating the directory hash for
change notifies
It only does that every 30 seconds or so - so I don't think that is
the problem (although turning if off might prove me wrong).
Jeremy.
How can I turn that off?
I'm willing to do any testing on
On Thu, May 11, 2006 at 12:33:59PM -0400, Claus Lund wrote:
sounds like samba is recreating the directory hash for
change notifies
It only does that every 30 seconds or so - so I don't think that is
the problem (although turning if off might prove me wrong).
Jeremy.
Ok, so it isn't the change notify effect James suspected
You are using the canonicalized case settings and case sensitive
settings needed for large directories aren't you ?
I tried changing the settings per this HOWTO:
On Thu, May 11, 2006 at 12:55:04PM -0400, Claus Lund wrote:
Ok, so it isn't the change notify effect James suspected
You are using the canonicalized case settings and case sensitive
settings needed for large directories aren't you ?
I tried changing the settings per this
Ok, so it isn't the change notify effect James suspected
You are using the canonicalized case settings and case sensitive
settings needed for large directories aren't you ?
I tried changing the settings per this HOWTO:
Confirmed on FC3/ext3 and AIX/JFS2/JFS. statx's still being done between
deletes. I'm using same settings as Claus and all files are in the form
file%d (0 through 14).
Now for me the initial display of files is ~30 seconds.
AIX delete shows a slow meter with 20,15,... seconds remaining.
On 5/12/06, Jeremy Allison [EMAIL PROTECTED] wrote:
On Fri, May 12, 2006 at 12:50:37AM +1000, James Peach wrote:
On 5/11/06, Jeremy Allison [EMAIL PROTECTED] wrote:
On Wed, May 10, 2006 at 12:29:53PM -0400, Claus Lund wrote:
Well, then Windows Explorer is braindamaged as well (which is a
On Fri, May 12, 2006 at 11:43:39AM +1000, James Peach wrote:
IIRC, after each delete, the change notify fires and the client then
reapplies it causing the hash to be recreated.
Yeah, that's what I just realized and mentioned to Bill.
I'm working on fixing this...
Jeremy.
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Server:
- AIX5.3 with JFS2 file systems
- IBM pSeries 520 (1.9GHz p5+ CPU)
- Samba 3.0.22 (and the same problem exists in 3.0.21a)
- I tested Samba compiled from sources with GCC 4.0.2 and 3.4.3 same result
for both. I also downloaded the AIX binary from
On Wed, May 10, 2006 at 10:17:53AM -0400, Claus Lund wrote:
We have an application that creates a large number of files in a single
directory. At peak times the number of files in that directory get up around
150,000. The files are around 10-200KB in size. When I try to delete files
out of
We have an application that creates a large number of files in a single
directory. At peak times the number of files in that directory
get up around
150,000. The files are around 10-200KB in size. When I try to
delete files
out of that directory then things get really slow ... up to
On Wed, May 10, 2006 at 12:29:53PM -0400, Claus Lund wrote:
Well, then Windows Explorer is braindamaged as well (which is a claim I
won't contest ;) )... because it's slow deleting files right through
Explorer as well.
Yep - I completely agree Explorer is braindamaged. That's probably
the
Well, it looks like a Samba problem to me (or maybe a compiler/compiler
optimization problem?). I'm trying to get Samba compiled using IBM's XLC
instead of GCC in the hopes that XLC might produce faster
running binaries
... but unfortunately that seems like a somewhat involved task (Samba
On Wed, May 10, 2006 at 01:14:08PM -0400, Claus Lund wrote:
I agree that it's not a Samba logic problem ... more like a Samba porting
problem?
And I don't think we can just blame JFS2 and/or AIX either because deleting
files in that directory directly on the box or even through NFS is orders
Could this have anything to do with the SYNC problem that was brought
to light in the past two weeks? Maybe AIX/jfs is doing dome
additional processing in order to flush the disks. I know that ext3
can do write combining that may be driving down the cost of the
SYNC.
I'm not saying that my bet
On Wed, May 10, 2006 at 01:53:07PM -0400, Eric Warnke wrote:
Could this have anything to do with the SYNC problem that was brought
to light in the past two weeks? Maybe AIX/jfs is doing dome
additional processing in order to flush the disks. I know that ext3
can do write combining that may
- Samba 3.0.22 (and the same problem exists in 3.0.21a)
So the SYNC could be the issue then no?
Cheers,
Eric
On 5/10/06, Jeremy Allison [EMAIL PROTECTED] wrote:
Possible, but I thought he was using 3.0.14a which doesn't have
the O_SYNC problem.
Jeremy.
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On Wed, May 10, 2006 at 02:18:58PM -0400, Eric Warnke wrote:
- Samba 3.0.22 (and the same problem exists in 3.0.21a)
So the SYNC could be the issue then no?
It could, but the best way to know whether it is we need a
truss, as William wrote.
Volker
pgpU53Jw7YP9N.pgp
Description: PGP
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
- Original Message -
From: Claus Lund [EMAIL PROTECTED]
To: William Jojo [EMAIL PROTECTED]; Jeremy Allison [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]; samba@lists.samba.org
Sent: Wednesday, May 10, 2006 2:29 PM
Subject: RE: [Samba] Performance issue on AIX when deleting files in a
directory
On Wed, May 10, 2006 at 02:18:58PM -0400, Eric Warnke wrote:
- Samba 3.0.22 (and the same problem exists in 3.0.21a)
So the SYNC could be the issue then no?
Yes, the bug is in 3.0.22. It doesn't affect delete though,
only writes.
Jeremy.
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