Samba server performance -- only 33MiB/s with one client on 1G network!

[Mark Saad]

On Tue, Jul 9, 2013 at 12:10 PM, Lev Serebryakov <lev at freebsd.org> wrote:

> Hello, Lev.
> You wrote 8 июля 2013 г., 1:02:24:
>
> LS> Hello, Lev.
> LS> You wrote 7 июля 2013 г., 23:37:04:
>
> LS>>   So, smbd is NOT limited by:
> LS>>     (1) FS (33MiB/s vs 280MiB/s).
> LS>>     (2) Network (33MiB/s vs 820Mbit/s / 97MiB/s).
> LS>>     (3) CPU (50% vs 100%, CPU is 150% idle!).
> LS>>   Why samba performacne is so loosy? What could
> LS>  I've "ktrace" smbd process in question and see a lot of
>  Ok, poll() takes 98.5% of time spent by samba process! Is it Ok?!
>  And getegid()/geteuid() is takes 30% of calls (but only 0.1% of time)!
>  But this poll() prevalence is not clear to me. So, it wait something most
> of time? What?
>
> --
> // Black Lion AKA Lev Serebryakov <lev at FreeBSD.org>
>
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Lev
  What can you tell us about the system tunings. Can you post a copy of your

1. sysctl.conf
2. loader.conf
3. smb.conf
4. /etc/fstab

Also the output from

1. pciconf -lv
2. dmidecode
3. ifconfig
4. mount

sanitize them as needed.
-- 
mark saad | nonesuch at longcount.org