Re: Test results and Performance Tuning efforts ...

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



----- Original Message -----
> From: "Lindsay Mathieson" <lindsay.mathieson@xxxxxxxxx>
> To: "Paul Cuzner" <pcuzner@xxxxxxxxxx>
> Cc: "Ben Turner" <bturner@xxxxxxxxxx>, "gluster-users" <gluster-users@xxxxxxxxxxx>
> Sent: Monday, October 12, 2015 10:44:49 PM
> Subject: Re:  Test results and Performance Tuning efforts ...
> 
> Thanks, good to know.
> 
> On 13 October 2015 at 11:57, Paul Cuzner <pcuzner@xxxxxxxxxx> wrote:
> 
> > I don't think so. The workaround affects how glusterd is working. The
> > performance fix benefit with epoll is on the glusterfsd daemons - AFAIK.
> >
> > Perhaps one of the devs can chime in to confirm the impact.

Hmm I think it will negate the MT epoll perf improvement.  Try setting what Paul suggested and do gluster v info, if you see:

server.event-threads: 1
client.event-threads: 1

In your gluster v info output then I think it will negate things.  @Shyam - can you confirm / deny this?

-b

> >
> >
> > On Tue, Oct 13, 2015 at 2:53 PM, Lindsay Mathieson <
> > lindsay.mathieson@xxxxxxxxx> wrote:
> >
> >>
> >> On 13 October 2015 at 11:51, Paul Cuzner <pcuzner@xxxxxxxxxx> wrote:
> >>
> >>> add
> >>> # for epoll issue glusterd crash fix
> >>>     option ping-timeout 0
> >>>     option event-threads  1
> >>>
> >>> to your glusterd.vol files (/etc/glusterfs/glusterd.vol)
> >>
> >>
> >>
> >>
> >>
> >> Thanks, yah I saw that.
> >>
> >> Won't that remove the performance benefits though?
> >>
> >> --
> >> Lindsay
> >>
> >
> >
> 
> 
> --
> Lindsay
> 
_______________________________________________
Gluster-users mailing list
Gluster-users@xxxxxxxxxxx
http://www.gluster.org/mailman/listinfo/gluster-users



[Index of Archives]     [Gluster Development]     [Linux Filesytems Development]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux OMAP]     [Linux MIPS]     [eCos]     [Asterisk Internet PBX]     [Linux API]

  Powered by Linux