22x speed improvement, 3X mem impovement
22x speed improvement, 3X mem impovement

data = apply(matrix(as.character(1:90000), ncol= 300), 1, paste, collapse = " ")
system.time(readPartition(data))
system.time(readPartition.old(data))

kimchitsigai/SparkR-pkg,7c00/SparkR-pkg,RevolutionAnalytics/SparkR-pkg,LeoYao/SparkR-pkg,kcompher/SparkR-pkg,kcompher/SparkR-pkg,nvoron23/SparkR-pkg,kimchitsigai/SparkR-pkg,kimchitsigai/SparkR-pkg,LeoYao/SparkR-pkg,Draki/SparkR-pkg,rickyHong/sparkR-dist,rickyHong/sparkR-dist,liyuqi/SparkR-pkg,kuch4r/SparkR-pkg,nvoron23/SparkR-pkg,7c00/SparkR-pkg,EDMunplugged/SparkR-pkg,Draki/SparkR-pkg,xzw0005/SparkR-pkg,amplab-extras/SparkR-pkg,liyuqi/SparkR-pkg,LeoYao/SparkR-pkg,EugenePig/SparkR-pkg,liyuqi/SparkR-pkg,RevolutionAnalytics/SparkR-pkg,7c00/SparkR-pkg,xzw0005/SparkR-pkg,nvoron23/SparkR-pkg,Liziyao/SparkR-pkg,kcompher/SparkR-pkg,amplab-extras/SparkR-pkg,Liziyao/SparkR-pkg,EugenePig/SparkR-pkg,amplab-extras/SparkR-pkg,kuch4r/SparkR-pkg,7c00/SparkR-pkg,xzw0005/SparkR-pkg,RevolutionAnalytics/SparkR-pkg,Draki/SparkR-pkg,amplab-extras/SparkR-pkg,rickyHong/sparkR-dist,rickyHong/sparkR-dist,EDMunplugged/SparkR-pkg,kuch4r/SparkR-pkg,nvoron23/SparkR-pkg,liyuqi/SparkR-pkg,xzw0005/SparkR-pkg,Liziyao/SparkR-pkg,EugenePig/SparkR-pkg,Liziyao/SparkR-pkg,EDMunplugged/SparkR-pkg,kuch4r/SparkR-pkg,RevolutionAnalytics/SparkR-pkg,LeoYao/SparkR-pkg,EDMunplugged/SparkR-pkg,kcompher/SparkR-pkg