I'm using kvm on Ubuntu 16.04

my machine cpu is 24 core and I run 47 sandbox using hyperthreading on kvm. The virtual machine use 0.5 core physically

After a few minutes of running kvm, the following message pops up.

I entered iostat, it comes out

avg-cpu:  %user   %nice %system %iowait  %steal   %idle
          46.42    0.00    5.87    6.87    0.00   40.83

my kernel is 4.4.0-38-generic

Please tell me why and how to solve the error.

error message

closed as too broad by Scott, Stephen Rauch, Anthon, sebasth, Archemar Sep 20 '17 at 13:37

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