Hi,
we had some trouble with tomcat7 and the blocking /dev/random devices on KVM
guests. So i’ve just tried to enable virtio-rng for the KVM guests like
described here:
http://wiki.qemu-project.org/Features-Done/VirtIORNG
lsof /dev/random shows qemu - on the guest
cat /sys/devices/virtual/misc
On Tue, Sep 30, 2014 at 01:44:48PM -0400, Al Patel wrote:
> In the current system, what are the extra threads?
The set of thread is dynamic because worker threads are started and
terminated depending on guest activity. You cannot make assumptions
about threads and QEMU provides monitor commands t
It makes a huge amount of sense for any backend that has sparse
storage, including:
- qcow2 (and all other cow formats).
- raw files on any host file system that supports sparse files.
- anything which caches the (virtual) sectors host side.
- anything which supports discard/trim/puncture/whateve
