[Samba] Samba High CPU usage
Adam Tauno Williams
awilliam at whitemice.org
Mon Mar 6 14:00:04 UTC 2017
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
> 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).
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