public WritCacheCountersHolder pushWriteCacheCounters ( WritCacheCountersHolder holder ) { if ( snapshot == null ) return holder ; if ( snapshot . writCacheCountersHolder == null ) return holder ; if ( holder == null ) holder = new WritCacheCountersHolder ( ) ; snapshot . writCacheCountersHolder . pushData ( holder ) ; return holder ; }
Takes write cache performance data from last snapshot and aggregates them with data passed inside method as parameter . Result of aggregation of performance data is returned inside of passed in performance data and as result of this method call .