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I'm testing KVM on Ubuntu 12.04 and I've seen that if I run bonnie++ on guest with this intensive I/O the host KVM process has 50 threads more or less.

How could be possible? Is there any way to limit the number of threads?

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why would you limit the number of KVM guest threads on the host KVM process? –  wojciechz Jan 10 '13 at 14:15
    
The question is that I don't understand why 50 threads. The documentation says that there is only a thread for I/O and one thread for each vcpu. Thanks –  user152820 Jan 11 '13 at 9:48
    
No one knows why this is happening? –  user152820 Jan 16 '13 at 8:53
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