Hi Davide, Can you please share the block hosting volume configuration?
Also, more details about the kernel and tcmu-runner versions could help in understanding the problem better. Thanks, Vijay On Tue, Nov 6, 2018 at 6:16 AM Davide Obbi <[email protected]> wrote: > Hi, > > i am testing gluster-block and i am wondering if someone has used it and > have some feedback regarding its performance.. just to set some > expectations... for example: > - i have deployed a block volume using heketi on a 3 nodes gluster4.1 > cluster. it's a replica3 volume. > - i have mounted via iscsi using multipath config suggested, created vg/lv > and put xfs on it > - all done without touching any volume setting or customizing xfs > parameters etc.. > - all baremetal running on 10Gb, gluster has a single block device, SSD in > use by heketi > > so i tried a dd and i get a 4.7 MB/s? > - on the gluster nodes i have in write ~200iops, ~15MB/s, 75% util steady > and spiky await time up to 100ms alternating between the servers. CPUs are > mostly idle but there is some waiting... > - Glusterd and fsd utilization is below 1% > > The thing is that a gluster fuse mount on same platform does not have this > slowness so there must be something wrong with my understanding of > gluster-block? > > > > > > _______________________________________________ > Gluster-users mailing list > [email protected] > https://lists.gluster.org/mailman/listinfo/gluster-users
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