fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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123 lines
4.5 KiB
123 lines
4.5 KiB
// Copyright (c) 2014, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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package org.rocksdb;
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public enum TickerType {
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// total block cache misses
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// REQUIRES: BLOCK_CACHE_MISS == BLOCK_CACHE_INDEX_MISS +
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// BLOCK_CACHE_FILTER_MISS +
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// BLOCK_CACHE_DATA_MISS;
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BLOCK_CACHE_MISS(0),
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// total block cache hit
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// REQUIRES: BLOCK_CACHE_HIT == BLOCK_CACHE_INDEX_HIT +
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// BLOCK_CACHE_FILTER_HIT +
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// BLOCK_CACHE_DATA_HIT;
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BLOCK_CACHE_HIT(1),
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// # of blocks added to block cache.
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BLOCK_CACHE_ADD(2),
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// # of times cache miss when accessing index block from block cache.
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BLOCK_CACHE_INDEX_MISS(3),
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// # of times cache hit when accessing index block from block cache.
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BLOCK_CACHE_INDEX_HIT(4),
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// # of times cache miss when accessing filter block from block cache.
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BLOCK_CACHE_FILTER_MISS(5),
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// # of times cache hit when accessing filter block from block cache.
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BLOCK_CACHE_FILTER_HIT(6),
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// # of times cache miss when accessing data block from block cache.
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BLOCK_CACHE_DATA_MISS(7),
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// # of times cache hit when accessing data block from block cache.
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BLOCK_CACHE_DATA_HIT(8),
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// # of times bloom filter has avoided file reads.
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BLOOM_FILTER_USEFUL(9),
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// # of memtable hits.
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MEMTABLE_HIT(10),
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// # of memtable misses.
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MEMTABLE_MISS(11),
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/**
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* COMPACTION_KEY_DROP_* count the reasons for key drop during compaction
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* There are 3 reasons currently.
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*/
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COMPACTION_KEY_DROP_NEWER_ENTRY(12), // key was written with a newer value.
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COMPACTION_KEY_DROP_OBSOLETE(13), // The key is obsolete.
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COMPACTION_KEY_DROP_USER(14), // user compaction function has dropped the key.
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// Number of keys written to the database via the Put and Write call's
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NUMBER_KEYS_WRITTEN(15),
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// Number of Keys read,
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NUMBER_KEYS_READ(16),
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// Number keys updated, if inplace update is enabled
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NUMBER_KEYS_UPDATED(17),
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// Bytes written / read
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BYTES_WRITTEN(18),
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BYTES_READ(19),
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NO_FILE_CLOSES(20),
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NO_FILE_OPENS(21),
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NO_FILE_ERRORS(22),
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// Time system had to wait to do LO-L1 compactions
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STALL_L0_SLOWDOWN_MICROS(23),
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// Time system had to wait to move memtable to L1.
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STALL_MEMTABLE_COMPACTION_MICROS(24),
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// write throttle because of too many files in L0
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STALL_L0_NUM_FILES_MICROS(25),
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RATE_LIMIT_DELAY_MILLIS(26),
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NO_ITERATORS(27), // number of iterators currently open
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// Number of MultiGet calls, keys read, and bytes read
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NUMBER_MULTIGET_CALLS(28),
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NUMBER_MULTIGET_KEYS_READ(29),
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NUMBER_MULTIGET_BYTES_READ(30),
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// Number of deletes records that were not required to be
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// written to storage because key does not exist
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NUMBER_FILTERED_DELETES(31),
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NUMBER_MERGE_FAILURES(32),
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SEQUENCE_NUMBER(33),
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// number of times bloom was checked before creating iterator on a
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// file, and the number of times the check was useful in avoiding
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// iterator creation (and thus likely IOPs).
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BLOOM_FILTER_PREFIX_CHECKED(34),
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BLOOM_FILTER_PREFIX_USEFUL(35),
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// Number of times we had to reseek inside an iteration to skip
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// over large number of keys with same userkey.
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NUMBER_OF_RESEEKS_IN_ITERATION(36),
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// Record the number of calls to GetUpadtesSince. Useful to keep track of
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// transaction log iterator refreshes
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GET_UPDATES_SINCE_CALLS(37),
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BLOCK_CACHE_COMPRESSED_MISS(38), // miss in the compressed block cache
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BLOCK_CACHE_COMPRESSED_HIT(39), // hit in the compressed block cache
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WAL_FILE_SYNCED(40), // Number of times WAL sync is done
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WAL_FILE_BYTES(41), // Number of bytes written to WAL
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// Writes can be processed by requesting thread or by the thread at the
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// head of the writers queue.
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WRITE_DONE_BY_SELF(42),
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WRITE_DONE_BY_OTHER(43),
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WRITE_WITH_WAL(44), // Number of Write calls that request WAL
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COMPACT_READ_BYTES(45), // Bytes read during compaction
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COMPACT_WRITE_BYTES(46), // Bytes written during compaction
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// Number of table's properties loaded directly from file, without creating
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// table reader object.
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NUMBER_DIRECT_LOAD_TABLE_PROPERTIES(47),
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NUMBER_SUPERVERSION_ACQUIRES(48),
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NUMBER_SUPERVERSION_RELEASES(49),
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NUMBER_SUPERVERSION_CLEANUPS(50);
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private final int value_;
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private TickerType(int value) {
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value_ = value;
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}
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public int getValue() {
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return value_;
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}
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}
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