samba - Mar 2017 - Samba High CPU usage

Hi!

Just a simple question. Do you know how to make it use lower CPU usage. 
How can I configure Samba Domain Controller to use less CPU?

My server is using for every HTTPS AUTH PAM.D LDAP / SSH / WIndows 
Network / Windows Login, but it is a simple login. How can it is so 
slow? How can I make it faster? Or use it like SQL server backend or 
something?

Sometimes, when I copy like 1000 files form one file to another server 
it goes beyond 50%.

Looks a bit high for me.

Any options?

Thanks!

Quoting Patrik Laszlo via samba <samba at
lists.samba.org>:
> Just a simple question. Do you know how to make it use lower CPU  
> usage. How can I configure Samba Domain Controller to use less CPU?
> My server is using for every HTTPS AUTH PAM.D LDAP / SSH / WIndows  
> Network / Windows Login, but it is a simple login. How can it is so  
> slow? How can I make it faster? Or use it like SQL server backend or  
> something?
> Sometimes, when I copy like 1000 files form one file to another  
> server it goes beyond 50%.
>
> Looks a bit high for me.
>
> Any options?
What is your debugging/logging level?  I have seen high debugging  
levels drive high CPU usage.

How many users?

What is your underlying storage?  Wait times?  I/O latency?

Is the the samba process specifically driving the high CPU utilization?

Are you doing lots of authentication requests via pam_krb5? (that can  
be the slowest form of authentication).