[Samba] fast reads, slow writes

[Karel Rericha]

Thanks for fast reply, but alas it didn't help.

There is even STRANGE behaviour: When I copy big file to server, speed 
is around 12MB/s,
but if I start another copying to server from different machine, speed 
of copying goes significantly
up on both machines. What the hell ?

Robert Schetterer napsal(a):

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Hi Karel,
> upgrade samba
> ftp://ftp.suse.com/pub/projects/samba/3.0/x86_64/

upgraded, didn't help

> as well there a perfomance issues known to the webclient service
> in win xp , so just stop it.

disabled, didn't help

> slow down logging at samba , try set sendfile parameter to no,

log level is 1, just info of connections; 0 didn't help

> read
> http://info.ccone.at/INFO/Samba/speed.html

tested all hints,  no  impact on performace at all

> check your nic ,switching, firewalling ( if exist )

tested two gigabit switches, two nics

> try settings like this
> [bigshare]
> ~         path = /home/jeremy/tmp/manyfilesdir
> ~         read only = no
> ~      case sensitive = True
> ~         default case = upper
> ~         preserve case = no
> ~         short preserve case = no

tried, no success

> Best Regards
> Robert
>
> Karel Rericha schrieb:
> | We have two SUSE SLES 9.0 x86-64 servers on gigabit network, one with
> | RAID1 and samba 3.0.4,
> | and one with RAID10 upgraded to samba 3.0.9. Both have the same 
> problem:
> | when you copy from
> | server to client, speeds are on big files about 40MB/s for RAID1 and
> | about 60MB/s for RAID10.
> | But when you copy to server, speed are about 8MB/s. I have set up ftp
> | servers on them just to try
> | ftp protocol upload, and  it is happy full speed both directions.
> |
> | After few hours of googling, I found "security = share" hint, which
> | didn't help, and after little more
> | time "use sendfile  =  yes" hint, which helped little bit, speeds are
> | now 10-12MB/s, but still not
> | acceptable.
> |
> | We don't intend to use samba servers as PDC, but just only as workgroup
> | NAS.
> |
> | Original smb.conf is attached (before security and sendfile tweaking).
> |
> | One more question: does anybody know good utility to test speed of
> | remote volumes ?
> |
> |
> | 
> ------------------------------------------------------------------------
> |
> | No virus found in this outgoing message.
> | Checked by AVG Anti-Virus.
> | Version: 7.0.300 / Virus Database: 265.8.8 - Release Date: 14.2.2005
> |
>
> - --
> Mit freundlichen Gruessen
> Best Regards
> Robert Schetterer
>
> robert_at_schetterer.org
> Munich / Bavaria / Germany
> https://www.schetterer.org
>
> \**********************************
> \* gnupgp
> \* public key:
> \* https://www.schetterer.org/public.key
> \**********************************
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.2.5 (MingW32)
> Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org
>
> iD8DBQFCFKPN+Jw+56iSjEkRAqy6AKC1+qQab2fw3Wm1xf6+BxP/XFZ3bACfWIMn
> l6q8nflxH3nNHojIHV/rbZg=
> =eZ2S
> -----END PGP SIGNATURE-----
>
>No virus found in this incoming message.
>Checked by AVG Anti-Virus.
>Version: 7.0.300 / Virus Database: 265.8.8 - Release Date: 14.2.2005
>  
>



-- 
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.300 / Virus Database: 265.8.8 - Release Date: 14.2.2005