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vendor/rocksdb/include/rocksdb/statistics.h  view on Meta::CPAN

  // BlobDB specific stats
  // # of Put/PutTTL/PutUntil to BlobDB.
  BLOB_DB_NUM_PUT,
  // # of Write to BlobDB.
  BLOB_DB_NUM_WRITE,
  // # of Get to BlobDB.
  BLOB_DB_NUM_GET,
  // # of MultiGet to BlobDB.
  BLOB_DB_NUM_MULTIGET,
  // # of Seek/SeekToFirst/SeekToLast/SeekForPrev to BlobDB iterator.
  BLOB_DB_NUM_SEEK,
  // # of Next to BlobDB iterator.
  BLOB_DB_NUM_NEXT,
  // # of Prev to BlobDB iterator.
  BLOB_DB_NUM_PREV,
  // # of keys written to BlobDB.
  BLOB_DB_NUM_KEYS_WRITTEN,
  // # of keys read from BlobDB.
  BLOB_DB_NUM_KEYS_READ,
  // # of bytes (key + value) written to BlobDB.
  BLOB_DB_BYTES_WRITTEN,
  // # of bytes (keys + value) read from BlobDB.
  BLOB_DB_BYTES_READ,
  // # of keys written by BlobDB as non-TTL inlined value.
  BLOB_DB_WRITE_INLINED,
  // # of keys written by BlobDB as TTL inlined value.
  BLOB_DB_WRITE_INLINED_TTL,
  // # of keys written by BlobDB as non-TTL blob value.
  BLOB_DB_WRITE_BLOB,
  // # of keys written by BlobDB as TTL blob value.
  BLOB_DB_WRITE_BLOB_TTL,
  // # of bytes written to blob file.
  BLOB_DB_BLOB_FILE_BYTES_WRITTEN,
  // # of bytes read from blob file.
  BLOB_DB_BLOB_FILE_BYTES_READ,
  // # of times a blob files being synced.
  BLOB_DB_BLOB_FILE_SYNCED,
  // # of blob index evicted from base DB by BlobDB compaction filter because
  // of expiration.
  BLOB_DB_BLOB_INDEX_EXPIRED_COUNT,
  // size of blob index evicted from base DB by BlobDB compaction filter
  // because of expiration.
  BLOB_DB_BLOB_INDEX_EXPIRED_SIZE,
  // # of blob index evicted from base DB by BlobDB compaction filter because
  // of corresponding file deleted.
  BLOB_DB_BLOB_INDEX_EVICTED_COUNT,
  // size of blob index evicted from base DB by BlobDB compaction filter
  // because of corresponding file deleted.
  BLOB_DB_BLOB_INDEX_EVICTED_SIZE,
  // # of blob files being garbage collected.
  BLOB_DB_GC_NUM_FILES,
  // # of blob files generated by garbage collection.
  BLOB_DB_GC_NUM_NEW_FILES,
  // # of BlobDB garbage collection failures.
  BLOB_DB_GC_FAILURES,
  // # of keys drop by BlobDB garbage collection because they had been
  // overwritten.
  BLOB_DB_GC_NUM_KEYS_OVERWRITTEN,
  // # of keys drop by BlobDB garbage collection because of expiration.
  BLOB_DB_GC_NUM_KEYS_EXPIRED,
  // # of keys relocated to new blob file by garbage collection.
  BLOB_DB_GC_NUM_KEYS_RELOCATED,
  // # of bytes drop by BlobDB garbage collection because they had been
  // overwritten.
  BLOB_DB_GC_BYTES_OVERWRITTEN,
  // # of bytes drop by BlobDB garbage collection because of expiration.
  BLOB_DB_GC_BYTES_EXPIRED,
  // # of bytes relocated to new blob file by garbage collection.
  BLOB_DB_GC_BYTES_RELOCATED,
  // # of blob files evicted because of BlobDB is full.
  BLOB_DB_FIFO_NUM_FILES_EVICTED,
  // # of keys in the blob files evicted because of BlobDB is full.
  BLOB_DB_FIFO_NUM_KEYS_EVICTED,
  // # of bytes in the blob files evicted because of BlobDB is full.
  BLOB_DB_FIFO_BYTES_EVICTED,

  // These coutners indicate a performance issue in WritePrepared transactions.
  // We should not seem them ticking them much.
  // # of times prepare_mutex_ is acquired in the fast path.
  TXN_PREPARE_MUTEX_OVERHEAD,
  // # of times old_commit_map_mutex_ is acquired in the fast path.
  TXN_OLD_COMMIT_MAP_MUTEX_OVERHEAD,
  // # of times we checked a batch for duplicate keys.
  TXN_DUPLICATE_KEY_OVERHEAD,
  // # of times snapshot_mutex_ is acquired in the fast path.
  TXN_SNAPSHOT_MUTEX_OVERHEAD,

  // Number of keys actually found in MultiGet calls (vs number requested by caller)
  // NUMBER_MULTIGET_KEYS_READ gives the number requested by caller
  NUMBER_MULTIGET_KEYS_FOUND,
  TICKER_ENUM_MAX
};

// The order of items listed in  Tickers should be the same as
// the order listed in TickersNameMap
const std::vector<std::pair<Tickers, std::string>> TickersNameMap = {
    {BLOCK_CACHE_MISS, "rocksdb.block.cache.miss"},
    {BLOCK_CACHE_HIT, "rocksdb.block.cache.hit"},
    {BLOCK_CACHE_ADD, "rocksdb.block.cache.add"},
    {BLOCK_CACHE_ADD_FAILURES, "rocksdb.block.cache.add.failures"},
    {BLOCK_CACHE_INDEX_MISS, "rocksdb.block.cache.index.miss"},
    {BLOCK_CACHE_INDEX_HIT, "rocksdb.block.cache.index.hit"},
    {BLOCK_CACHE_INDEX_ADD, "rocksdb.block.cache.index.add"},
    {BLOCK_CACHE_INDEX_BYTES_INSERT, "rocksdb.block.cache.index.bytes.insert"},
    {BLOCK_CACHE_INDEX_BYTES_EVICT, "rocksdb.block.cache.index.bytes.evict"},
    {BLOCK_CACHE_FILTER_MISS, "rocksdb.block.cache.filter.miss"},
    {BLOCK_CACHE_FILTER_HIT, "rocksdb.block.cache.filter.hit"},
    {BLOCK_CACHE_FILTER_ADD, "rocksdb.block.cache.filter.add"},
    {BLOCK_CACHE_FILTER_BYTES_INSERT,
     "rocksdb.block.cache.filter.bytes.insert"},
    {BLOCK_CACHE_FILTER_BYTES_EVICT, "rocksdb.block.cache.filter.bytes.evict"},
    {BLOCK_CACHE_DATA_MISS, "rocksdb.block.cache.data.miss"},
    {BLOCK_CACHE_DATA_HIT, "rocksdb.block.cache.data.hit"},
    {BLOCK_CACHE_DATA_ADD, "rocksdb.block.cache.data.add"},
    {BLOCK_CACHE_DATA_BYTES_INSERT, "rocksdb.block.cache.data.bytes.insert"},
    {BLOCK_CACHE_BYTES_READ, "rocksdb.block.cache.bytes.read"},
    {BLOCK_CACHE_BYTES_WRITE, "rocksdb.block.cache.bytes.write"},
    {BLOOM_FILTER_USEFUL, "rocksdb.bloom.filter.useful"},
    {BLOOM_FILTER_FULL_POSITIVE, "rocksdb.bloom.filter.full.positive"},
    {BLOOM_FILTER_FULL_TRUE_POSITIVE,
     "rocksdb.bloom.filter.full.true.positive"},
    {PERSISTENT_CACHE_HIT, "rocksdb.persistent.cache.hit"},
    {PERSISTENT_CACHE_MISS, "rocksdb.persistent.cache.miss"},
    {SIM_BLOCK_CACHE_HIT, "rocksdb.sim.block.cache.hit"},
    {SIM_BLOCK_CACHE_MISS, "rocksdb.sim.block.cache.miss"},
    {MEMTABLE_HIT, "rocksdb.memtable.hit"},
    {MEMTABLE_MISS, "rocksdb.memtable.miss"},
    {GET_HIT_L0, "rocksdb.l0.hit"},

vendor/rocksdb/include/rocksdb/statistics.h  view on Meta::CPAN

    {GET_UPDATES_SINCE_CALLS, "rocksdb.getupdatessince.calls"},
    {BLOCK_CACHE_COMPRESSED_MISS, "rocksdb.block.cachecompressed.miss"},
    {BLOCK_CACHE_COMPRESSED_HIT, "rocksdb.block.cachecompressed.hit"},
    {BLOCK_CACHE_COMPRESSED_ADD, "rocksdb.block.cachecompressed.add"},
    {BLOCK_CACHE_COMPRESSED_ADD_FAILURES,
     "rocksdb.block.cachecompressed.add.failures"},
    {WAL_FILE_SYNCED, "rocksdb.wal.synced"},
    {WAL_FILE_BYTES, "rocksdb.wal.bytes"},
    {WRITE_DONE_BY_SELF, "rocksdb.write.self"},
    {WRITE_DONE_BY_OTHER, "rocksdb.write.other"},
    {WRITE_TIMEDOUT, "rocksdb.write.timeout"},
    {WRITE_WITH_WAL, "rocksdb.write.wal"},
    {COMPACT_READ_BYTES, "rocksdb.compact.read.bytes"},
    {COMPACT_WRITE_BYTES, "rocksdb.compact.write.bytes"},
    {FLUSH_WRITE_BYTES, "rocksdb.flush.write.bytes"},
    {NUMBER_DIRECT_LOAD_TABLE_PROPERTIES,
     "rocksdb.number.direct.load.table.properties"},
    {NUMBER_SUPERVERSION_ACQUIRES, "rocksdb.number.superversion_acquires"},
    {NUMBER_SUPERVERSION_RELEASES, "rocksdb.number.superversion_releases"},
    {NUMBER_SUPERVERSION_CLEANUPS, "rocksdb.number.superversion_cleanups"},
    {NUMBER_BLOCK_COMPRESSED, "rocksdb.number.block.compressed"},
    {NUMBER_BLOCK_DECOMPRESSED, "rocksdb.number.block.decompressed"},
    {NUMBER_BLOCK_NOT_COMPRESSED, "rocksdb.number.block.not_compressed"},
    {MERGE_OPERATION_TOTAL_TIME, "rocksdb.merge.operation.time.nanos"},
    {FILTER_OPERATION_TOTAL_TIME, "rocksdb.filter.operation.time.nanos"},
    {ROW_CACHE_HIT, "rocksdb.row.cache.hit"},
    {ROW_CACHE_MISS, "rocksdb.row.cache.miss"},
    {READ_AMP_ESTIMATE_USEFUL_BYTES, "rocksdb.read.amp.estimate.useful.bytes"},
    {READ_AMP_TOTAL_READ_BYTES, "rocksdb.read.amp.total.read.bytes"},
    {NUMBER_RATE_LIMITER_DRAINS, "rocksdb.number.rate_limiter.drains"},
    {NUMBER_ITER_SKIP, "rocksdb.number.iter.skip"},
    {BLOB_DB_NUM_PUT, "rocksdb.blobdb.num.put"},
    {BLOB_DB_NUM_WRITE, "rocksdb.blobdb.num.write"},
    {BLOB_DB_NUM_GET, "rocksdb.blobdb.num.get"},
    {BLOB_DB_NUM_MULTIGET, "rocksdb.blobdb.num.multiget"},
    {BLOB_DB_NUM_SEEK, "rocksdb.blobdb.num.seek"},
    {BLOB_DB_NUM_NEXT, "rocksdb.blobdb.num.next"},
    {BLOB_DB_NUM_PREV, "rocksdb.blobdb.num.prev"},
    {BLOB_DB_NUM_KEYS_WRITTEN, "rocksdb.blobdb.num.keys.written"},
    {BLOB_DB_NUM_KEYS_READ, "rocksdb.blobdb.num.keys.read"},
    {BLOB_DB_BYTES_WRITTEN, "rocksdb.blobdb.bytes.written"},
    {BLOB_DB_BYTES_READ, "rocksdb.blobdb.bytes.read"},
    {BLOB_DB_WRITE_INLINED, "rocksdb.blobdb.write.inlined"},
    {BLOB_DB_WRITE_INLINED_TTL, "rocksdb.blobdb.write.inlined.ttl"},
    {BLOB_DB_WRITE_BLOB, "rocksdb.blobdb.write.blob"},
    {BLOB_DB_WRITE_BLOB_TTL, "rocksdb.blobdb.write.blob.ttl"},
    {BLOB_DB_BLOB_FILE_BYTES_WRITTEN, "rocksdb.blobdb.blob.file.bytes.written"},
    {BLOB_DB_BLOB_FILE_BYTES_READ, "rocksdb.blobdb.blob.file.bytes.read"},
    {BLOB_DB_BLOB_FILE_SYNCED, "rocksdb.blobdb.blob.file.synced"},
    {BLOB_DB_BLOB_INDEX_EXPIRED_COUNT,
     "rocksdb.blobdb.blob.index.expired.count"},
    {BLOB_DB_BLOB_INDEX_EXPIRED_SIZE, "rocksdb.blobdb.blob.index.expired.size"},
    {BLOB_DB_BLOB_INDEX_EVICTED_COUNT,
     "rocksdb.blobdb.blob.index.evicted.count"},
    {BLOB_DB_BLOB_INDEX_EVICTED_SIZE, "rocksdb.blobdb.blob.index.evicted.size"},
    {BLOB_DB_GC_NUM_FILES, "rocksdb.blobdb.gc.num.files"},
    {BLOB_DB_GC_NUM_NEW_FILES, "rocksdb.blobdb.gc.num.new.files"},
    {BLOB_DB_GC_FAILURES, "rocksdb.blobdb.gc.failures"},
    {BLOB_DB_GC_NUM_KEYS_OVERWRITTEN, "rocksdb.blobdb.gc.num.keys.overwritten"},
    {BLOB_DB_GC_NUM_KEYS_EXPIRED, "rocksdb.blobdb.gc.num.keys.expired"},
    {BLOB_DB_GC_NUM_KEYS_RELOCATED, "rocksdb.blobdb.gc.num.keys.relocated"},
    {BLOB_DB_GC_BYTES_OVERWRITTEN, "rocksdb.blobdb.gc.bytes.overwritten"},
    {BLOB_DB_GC_BYTES_EXPIRED, "rocksdb.blobdb.gc.bytes.expired"},
    {BLOB_DB_GC_BYTES_RELOCATED, "rocksdb.blobdb.gc.bytes.relocated"},
    {BLOB_DB_FIFO_NUM_FILES_EVICTED, "rocksdb.blobdb.fifo.num.files.evicted"},
    {BLOB_DB_FIFO_NUM_KEYS_EVICTED, "rocksdb.blobdb.fifo.num.keys.evicted"},
    {BLOB_DB_FIFO_BYTES_EVICTED, "rocksdb.blobdb.fifo.bytes.evicted"},
    {TXN_PREPARE_MUTEX_OVERHEAD, "rocksdb.txn.overhead.mutex.prepare"},
    {TXN_OLD_COMMIT_MAP_MUTEX_OVERHEAD,
     "rocksdb.txn.overhead.mutex.old.commit.map"},
    {TXN_DUPLICATE_KEY_OVERHEAD, "rocksdb.txn.overhead.duplicate.key"},
    {TXN_SNAPSHOT_MUTEX_OVERHEAD, "rocksdb.txn.overhead.mutex.snapshot"},
    {NUMBER_MULTIGET_KEYS_FOUND, "rocksdb.number.multiget.keys.found"},
};

/**
 * Keep adding histogram's here.
 * Any histogram should have value less than HISTOGRAM_ENUM_MAX
 * Add a new Histogram by assigning it the current value of HISTOGRAM_ENUM_MAX
 * Add a string representation in HistogramsNameMap below
 * And increment HISTOGRAM_ENUM_MAX
 * Add a corresponding enum value to HistogramType.java in the java API
 */
enum Histograms : uint32_t {
  DB_GET = 0,
  DB_WRITE,
  COMPACTION_TIME,
  SUBCOMPACTION_SETUP_TIME,
  TABLE_SYNC_MICROS,
  COMPACTION_OUTFILE_SYNC_MICROS,
  WAL_FILE_SYNC_MICROS,
  MANIFEST_FILE_SYNC_MICROS,
  // TIME SPENT IN IO DURING TABLE OPEN
  TABLE_OPEN_IO_MICROS,
  DB_MULTIGET,
  READ_BLOCK_COMPACTION_MICROS,
  READ_BLOCK_GET_MICROS,
  WRITE_RAW_BLOCK_MICROS,
  STALL_L0_SLOWDOWN_COUNT,
  STALL_MEMTABLE_COMPACTION_COUNT,
  STALL_L0_NUM_FILES_COUNT,
  HARD_RATE_LIMIT_DELAY_COUNT,
  SOFT_RATE_LIMIT_DELAY_COUNT,
  NUM_FILES_IN_SINGLE_COMPACTION,
  DB_SEEK,
  WRITE_STALL,
  SST_READ_MICROS,
  // The number of subcompactions actually scheduled during a compaction
  NUM_SUBCOMPACTIONS_SCHEDULED,
  // Value size distribution in each operation
  BYTES_PER_READ,
  BYTES_PER_WRITE,
  BYTES_PER_MULTIGET,

  // number of bytes compressed/decompressed
  // number of bytes is when uncompressed; i.e. before/after respectively
  BYTES_COMPRESSED,
  BYTES_DECOMPRESSED,
  COMPRESSION_TIMES_NANOS,
  DECOMPRESSION_TIMES_NANOS,
  // Number of merge operands passed to the merge operator in user read
  // requests.
  READ_NUM_MERGE_OPERANDS,