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----- Original Message ----- > From: "Abi Askushi" <rightkicktech at gmail.com> > To: "Ben Turner" <bturner at redhat.com> > Cc: "Krutika Dhananjay" <kdhananj at redhat.com>, "gluster-user" <gluster-users at gluster.org> > Sent: Monday, September 11, 2017 1:40:42 AM > Subject:...

Great to hear! ----- Original Message ----- > From: "Abi Askushi" <rightkicktech at gmail.com> > To: "Krutika Dhananjay" <kdhananj at redhat.com> > Cc: "gluster-user" <gluster-users at gluster.org> > Sent: Friday, September 8, 2017 7:01:00 PM > Subject: Re: [Gluster-users] Slow performance of gluster volume...

Hi Abi Can you please share your current transfer speeds after you made the change? Thank you. On Mon, Sep 11, 2017 at 9:55 AM, Ben Turner <bturner at redhat.com> wrote: > ----- Original Message ----- > > From: "Abi Askushi" <rightkicktech at gmail.com> > > To: "Ben Turner" <bturner at redhat.com> > > Cc: "Krutika Dhananjay" <kdhananj at redhat.com>, "gluster-user" < > gluster-users at gluster.org> > > Sent: Monday, September 11, 2017 1:40...

...e performance boost. >From which version to which version did you see such performance boost? I will try to upgrade and check difference also. On Sep 11, 2017 2:45 AM, "Ben Turner" <bturner at redhat.com> wrote: Great to hear! ----- Original Message ----- > From: "Abi Askushi" <rightkicktech at gmail.com> > To: "Krutika Dhananjay" <kdhananj at redhat.com> > Cc: "gluster-user" <gluster-users at gluster.org> > Sent: Friday, September 8, 2017 7:01:00 PM > Subject: Re: [Gluster-users] Slow performance of gluster volume...

...see any improvement with 3.11.1 as that has a patch that improves > perf for this kind of a workload > > Also, could you disable eager-lock and check if that helps? I see that max > time is being spent in acquiring locks. > > -Krutika > > On Wed, Sep 6, 2017 at 1:38 PM, Abi Askushi <rightkicktech at gmail.com> > wrote: > >> Hi Krutika, >> >> Is it anything in the profile indicating what is causing this bottleneck? >> In case i can collect any other info let me know. >> >> Thanx >> >> On Sep 5, 2017 13:27, "Abi A...

...secure on I am reaching now the max network bandwidth and performance of VMs is quite good. Did not upgrade the glusterd. As a next try I am thinking to upgrade gluster to 3.12 + test libgfapi integration of qemu by upgrading to ovirt 4.1.5 and check vm perf. On Sep 6, 2017 1:20 PM, "Abi Askushi" <rightkicktech at gmail.com> wrote: I tried to follow step from https://wiki.centos.org/ SpecialInterestGroup/Storage to install latest gluster on the first node. It installed 3.10 and not 3.11. I am not sure how to install 3.11 without compiling it. Then when tried to start the gluste...

Hi Krutika, Is it anything in the profile indicating what is causing this bottleneck? In case i can collect any other info let me know. Thanx On Sep 5, 2017 13:27, "Abi Askushi" <rightkicktech at gmail.com> wrote: Hi Krutika, Attached the profile stats. I enabled profiling then ran some dd tests. Also 3 Windows VMs are running on top this volume but did not do any stress testing on the VMs. I have left the profiling enabled in case more time is needed for use...

Do you see any improvement with 3.11.1 as that has a patch that improves perf for this kind of a workload Also, could you disable eager-lock and check if that helps? I see that max time is being spent in acquiring locks. -Krutika On Wed, Sep 6, 2017 at 1:38 PM, Abi Askushi <rightkicktech at gmail.com> wrote: > Hi Krutika, > > Is it anything in the profile indicating what is causing this bottleneck? > In case i can collect any other info let me know. > > Thanx > > On Sep 5, 2017 13:27, "Abi Askushi" <rightkicktech at gmail.c...

...an be served from the (md)cache to improve performance. > So enable that. > > Also, could you also enable client-io-threads and see if that improves > performance? > > Which version of gluster are you using BTW? > > -Krutika > > > On Tue, Sep 5, 2017 at 4:32 AM, Abi Askushi <rightkicktech at gmail.com> > wrote: > >> Hi all, >> >> I have a gluster volume used to host several VMs (managed through oVirt). >> The volume is a replica 3 with arbiter and the 3 servers use 1 Gbit >> network for the storage. >> >> When test...

...d will be the same. In any case, please attach the volume profile[1], so we can see what else is slowing things down. -Krutika [1] - https://gluster.readthedocs.io/en/latest/Administrator%20Guide/Monitoring%20Workload/#running-glusterfs-volume-profile-command On Tue, Sep 5, 2017 at 2:32 PM, Abi Askushi <rightkicktech at gmail.com> wrote: > Hi Krutika, > > I already have a preallocated disk on VM. > Now I am checking performance with dd on the hypervisors which have the > gluster volume configured. > > I tried also several values of shard-block-size and I keep getting t...

...nd that qemu sends quite a lot of [f]stats which can be served from the (md)cache to improve performance. So enable that. Also, could you also enable client-io-threads and see if that improves performance? Which version of gluster are you using BTW? -Krutika On Tue, Sep 5, 2017 at 4:32 AM, Abi Askushi <rightkicktech at gmail.com> wrote: > Hi all, > > I have a gluster volume used to host several VMs (managed through oVirt). > The volume is a replica 3 with arbiter and the 3 servers use 1 Gbit > network for the storage. > > When testing with dd (dd if=/dev/zero of=testf...

Hi all, I have a gluster volume used to host several VMs (managed through oVirt). The volume is a replica 3 with arbiter and the 3 servers use 1 Gbit network for the storage. When testing with dd (dd if=/dev/zero of=testfile bs=1G count=1 oflag=direct) out of the volume (e.g. writing at /root/) the performance of the dd is reported to be ~ 700MB/s, which is quite decent. When testing the dd on