On Tue, 2008-03-18 at 09:26 -0700, Ira Weiny wrote: > There is no guarantee against losing counts, however, if you set the sweep > time > fast enough it should be pretty accurate.
Regardless of how fast the polling is, it can never be 100% accurate as there is no atomic read and reset so there is always that window of change which is lost in the case of rapidly changing counters. It can be worse than this if the counters reach their sticky maximums and more counting is lost. -- Hal > Hope this helps, > Ira _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
