[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] [PATCH] use atomic_t type for system wide credit scheduler statistics



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

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel


 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.