Am 09.08.2012 15:42, schrieb Paolo Bonzini:
Il 09/08/2012 15:39, Stefan Priebe - Profihost AG ha scritto:
scsi-generic would indeed incur some overhead because it does not do
scatter/gather I/O directly, but scsi-hd/scsi-block do not have this
overhead. In any case, that should be visible through the output of
perf if it is significant.
Thanks for your help and replies. I'm a little bit lost on all these
comments. So what to check / do next?
Try with the deadline scheduler, and run "perf top" in guest/host if the
problems persist.
Thanks will do so. Right now i'm getting virtio_net virtio2: output:id 1
is not a head!
and then network is down.
Stefan
