Red Hat Bugzilla – Bug 426202
Make Xenoprof flush samples when it is stopped
Last modified: 2009-01-22 07:30:49 EST
xen-unstable changeset 16612 might be useful. Exact impact is unclear.
user: Keir Fraser <email@example.com>
date: Fri Dec 14 10:25:00 2007 +0000
xenoprof: flush remaining smples when sampling is stopped.
Xenoprof notifies guest kernel via VIRQ_XENOPROF when sampled.
But it does coarsly based on heuristic so that sometimes VIRQ_XENOPROF
isn't delivered resulting in that oprofile daemon collects no sample.
To avoid that situation, always send VIRQ_XENOPROF when sampling is
Signed-off-by: Isaku Yamahata <firstname.lastname@example.org>
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