updated updates file

updates

@@ -14,15 +14,18 @@ Modified:
 ====================================================
 spark/SparkEnv 								:: added currentStage variable
 spark/scheduler/DAGScheduler						:: added preRDDs, depMap, curRunningRddMap --- based on narrowancestors and narrowcachedancestors, added renewDepMap function, added args to ShuffleMapTask/ResultTask
+
 spark/scheduler/ResultTask						:: modified primary ctor to add argument
 spark/scheduler/ShuffleMapTask						:: modified primary/aux ctor to add arguemnt
 spark/scheduler/Task							:: modified primary/aux ctor to add arguemnt
+
 spark/rdd/RDD								:: modified unpersist, added getNarrowCachedAncestors
 spark/executor/Executor							:: for each new stage, store a new StageExInfo object in the environment in stageExInfos
 spark/executor/CoarseGrainedExecutorBackend				:: set SparkEnv, BlockManager currentStage
 spark/storage/BlockId							:: added getRddId, getRddSplitIndex functions
 spark/storage/BlockManager						:: added blockExInfoMap, inMemBlockExInfo set, stageExInfos Map,
                                                                            plus extra logic in removeRDD --- duh, this is because this is where the eviction happens!
+									   NOTE: inMemBlockExInfo is a sorted set based on the normalized cost of an RDD.
 
 Created:
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