[Samba] Samba 3.0.6 speed problem

[Fabrice Robin]

Ok, so I straced the same file copy twice, first one with the slow process,
second one after a kill HUP command.

Then I made a diff and it appeared that, in the first one, there are a lot
of
"error packet at smbd/notify.c" when doing a "kernel_ckeck_notify"...

I don't know what it means but I hope that you will understand it and that
you will be able to help me :-)) (It is quite critical in my company...)

Regards,
Fabrice Robin

PS: You will find the strace output files attached to this mail

Trace OK:
http://fr.f1.pg.briefcase.yahoo.com/bc/dionyweb/vwp2?.tok=bcCbyCUB_h64F3xe&.dir=/Samba3.0.6&.dnm=straceOK.out&.src=bc
Traces KO:
http://fr.f1.pg.briefcase.yahoo.com/bc/dionyweb/vwp2?.tok=bcCbyCUBBJsrBwku&.dir=/Samba3.0.6&.dnm=straceKO.out&.src=bc

----- Original Message ----- 
From: "Gerald (Jerry) Carter" <jerry at samba.org>
To: "Fabrice Robin" <FabriceRobin at bbs-one.fr>
Cc: <samba at lists.samba.org>
Sent: Tuesday, September 07, 2004 2:53 PM
Subject: Re: [Samba] Samba 3.0.6 speed problem


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>
> Fabrice Robin wrote:
> | Hi,
> |
> | I'm running a samba server version 3.0.6-2.FC2 on
> | a Dell PowerEdge 2600 SC RAID5, linux Fedora Core
> | 2 (Up to date).
> |
> | Windows user often experience critical speed problem
> | when writing files on a samba share (ex: 19mn for
> | a 36 mb file instead of nearly 10s), or printing.
> |
> | A "top", or "ps -ax", or even samba log files do
> | not indicate anything.
> |
> | I have to make a 'kill -HUP' on their smbd pid in
> | order for them to recover a normal writing/printing
> | speed !!!
> |
> | Am I the only one to experience this problem ???
>
> Haven't seen this.  You could try
>
> (a) runnign strace on one of the slow process to see if
> the smbd process is tied up with something else.
>
> (b) look at network trace to see if the XP client is
> being slow or if there is some other traffic going on.
>
> Although I will admit that the fact of sending the slow
> process a HUP signal restores normal performance is very
> strange.
>
>
>
>
> cheers, jerry
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