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xen-devel
Re: [Xen-devel] [PATCH] use atomic_t type for system wide credit schedul
Keir Fraser wrote:
Not while csched stats are enabled by default. They get cranked all over the
place. How much does this race matter? We probably just lose a few
increments?
Yes. The higher frequency the count is updated, the more increments lost
can we see - comparing to atomic version, counts like "vcpu_check" and
"scheduele" lose increments very obviously due to race.
Thanks,
xiaowei
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