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. Thanks. best regards,
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.
Hi Jeremy, What do you need exactly ? Thanks -- Christophe Yayon> On 10 Jan 2018, at 01:38, Jeremy Allison <jra at samba.org> wrote: > >> 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.