Re: [Samba] extremely low performance on Samba 4.2.14-Debian
- Date: Wed, 16 Aug 2017 23:28:08 +0200
- From: "L.P.H. van Belle via samba" <samba@xxxxxxxxxxxxxxx>
- Subject: Re: [Samba] extremely low performance on Samba 4.2.14-Debian
I HATE these auto send keys.. Did i tell that already..
( see below )
> -----Oorspronkelijk bericht-----
> Van: L.P.H. van Belle [mailto:belle@xxxxxxxxx]
> Verzonden: woensdag 16 augustus 2017 23:22
> Aan: 'samba@xxxxxxxxxxxxxxx'
> Onderwerp: RE: [Samba] extremely low performance on Samba
> Hai Emmanuel,
> But ive re-read the complete thread.
> Its strange that the old machine is so much faster.
> In thinging a bit, and it can go two ways..
> I'm trowing in things i get in my head based on experiance
> aka wild guesses, but review it i suggest.
> Samba bug/problem in settings combinations ( or wait for
> multi threaded samba 4.7. and test that)
> Hardware/linux (driver/setting) combination, i'll come to
> that later on..
> For samba.
> Can try with the following to see if one of these is slowing
> things down.
> In thinking in (kernel higher = better cifs (smb protocol
> support), and maybe improvements in xfs support (i haven't
> checked that).
> And check with modinfo the nic driver.
> I want to know if it possible to see the (by samba) detected
> interface speed. ( and mtu/tcp size rwin ).
> Smb.conf suggestions, and test order.
> server signing = auto
> Then again add:
> ntlm auth = no
> And im questioning these 2.
> In global you set.
> restrict anonymous 2
> In the share.
> guest ok = no
> The google translater makes crap off: This parameter
> nullifies the benefits of setting restrict anonymous = 2 :-/
> Are these to settings conflicting or not.. In not sure here.
> From man smb.conf
> guest ok (S)
> If this parameter is yes for a service, then no
> password is required to connect to the service. Privileges
> will be those of the guest account.
> This parameter nullifies the benefits of setting
> restrict anonymous = 2
> See the section below on security for more
> information about this option.
> Default: guest ok = no
> About the hardware/linux.
> Did you install/setup the hardware, (not judging your
> knowlidge, my thoughts) When you installed it, did you check
> the pci-e bus and the irq relations in the bios.
> It is possible, the 40G nic is shareing the bus with the raid
> 6 contoller.
> That can slow down things.
> Bios raid/hdds/mainboard up to date, so changelog review cant harm.
> Is the nic using firmware?
> The output of :
So few thing, i can think of i would check.
Its a pain, special when its far, the samba options are thing you might be able to remotely check.
Maybe it helps a bit.
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