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32f021f266
On kernels with HZ=100, the resolution of sleeps in poll() is quite bad. Doing a precise check on the expiry time vs the current time will thus often thing the timer has not expired even though we're within 10ms of the expected expiry time. This then causes another pointless sleep in poll() for <10ms. Timers do not need to have such precise expiration, so we treat a timer as expired if it is within 20ms of the expected expiry time. This also fixes the eventtest.c test suite on kernels with HZ=100 * daemon/event.c: Add 20ms fuzz when checking for timer expiry |
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LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>