[Samba] Samba 4.7.x IOWAIT / load average

[Jeremy Allison]

On Tue, Jan 09, 2018 at 03:27:17PM +0100, Christophe Yayon via samba wrote:
> Hi,
> 
> I want to report a strange problem with samba 4.7.x and IO wait / CPU usage.
> 
> I am using linux (archlinux, kernel 4.14.2) and encounter a very strange bug with only samba 4.7.x (from 4.7.0 to last 4.7.4).
> With these versions CPU usage and IO WAIT is very high with a single CIFS client with very low transfert (about 1MB/s).
> 
> I rollback to 4.6.9 to 4.6.12 and no problem with these versions.

More details/logs needed. Not enough info here to even begin
to debug I'm afraid.