Are you duplicating the traffic over the same physical network by relaying
through the VM, rather than writing directly to network storage, thereby
halving the write performance?
Assuming you're on a GigE network, are all the network devices running in
Just some guesses based on the fact that the throughput is almost exactly
*Steve Dainard *
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On Thu, Sep 26, 2013 at 5:23 AM, Stefano Stagnaro
I'm testing oVirt 3.3 with GlusterFS libgfapi back-end. I'm using a node
for engine and one for VDSM. From the VMs I'm mounting a second GlusterFS
volume on a third storage server.
I'm experiencing very bad transfer rates (38MB/s) writing from a client to
a VM on the mounted GlusterFS. On the other hand, from the VM itself I can
move a big file from the root vda (libgfapi) to the mounted GlusterFS at
I can't really figure out where the bottleneck could be. I'm using only
the default ovirtmgmt network.
Thank you for your help, any hint will be appreciated.
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