Package org.apache.sysds.runtime.controlprogram.caching

Class CacheStatistics

  • public class CacheStatistics
extends Object
    This singleton provides basic caching statistics in CP. 1) Hit statistics for caching (mem, fs, hdfs, total) NOTE: In order to provide accurate statistics in multi-threaded synchronized increments are required. Since those functions are called potentially very often, we use atomic increments (compare and swap) instead of heavy-weight 'synchronized' methods.

    • Constructor Detail

      • CacheStatistics

        public CacheStatistics()

    • Method Detail

      • reset

        public static void reset()

      • incrementMemHits

        public static void incrementMemHits()

      • incrementMemHits

        public static void incrementMemHits​(int delta)

      • getMemHits

        public static long getMemHits()

      • incrementFSBuffHits

        public static void incrementFSBuffHits()

      • incrementFSBuffHits

        public static void incrementFSBuffHits​(int delta)

      • getFSBuffHits

        public static long getFSBuffHits()

      • incrementFSHits

        public static void incrementFSHits()

      • incrementFSHits

        public static void incrementFSHits​(int delta)

      • getFSHits

        public static long getFSHits()

      • incrementHDFSHits

        public static void incrementHDFSHits()

      • incrementHDFSHits

        public static void incrementHDFSHits​(int delta)

      • getHDFSHits

        public static long getHDFSHits()

      • incrementLinHits

        public static void incrementLinHits()

      • incrementLinHits

        public static void incrementLinHits​(int delta)

      • getLinHits

        public static long getLinHits()

      • incrementBPoolWrites

        public static void incrementBPoolWrites()

      • incrementFSBuffWrites

        public static void incrementFSBuffWrites​(int delta)

      • getFSBuffWrites

        public static long getFSBuffWrites()

      • incrementFSWrites

        public static void incrementFSWrites()

      • incrementFSWrites

        public static void incrementFSWrites​(int delta)

      • getFSWrites

        public static long getFSWrites()

      • incrementHDFSWrites

        public static void incrementHDFSWrites()

      • incrementHDFSWrites

        public static void incrementHDFSWrites​(int delta)

      • getHDFSWrites

        public static long getHDFSWrites()

      • incrementLinWrites

        public static void incrementLinWrites()

      • incrementLinWrites

        public static void incrementLinWrites​(int delta)

      • getLinWrites

        public static long getLinWrites()

      • incrementAcquireRTime

        public static void incrementAcquireRTime​(long delta)

      • getAcquireRTime

        public static long getAcquireRTime()

      • incrementAcquireMTime

        public static void incrementAcquireMTime​(long delta)

      • getAcquireMTime

        public static long getAcquireMTime()

      • incrementReleaseTime

        public static void incrementReleaseTime​(long delta)

      • getReleaseTime

        public static long getReleaseTime()

      • incrementExportTime

        public static void incrementExportTime​(long delta)

      • getExportTime

        public static long getExportTime()

      • displayHits

        public static String displayHits()

      • displayWrites

        public static String displayWrites()

      • displayTime

        public static String displayTime()