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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
package org.rocksdb;
public enum HistogramType {
DB_GET((byte) 0x0),
DB_WRITE((byte) 0x1),
COMPACTION_TIME((byte) 0x2),
SUBCOMPACTION_SETUP_TIME((byte) 0x3),
TABLE_SYNC_MICROS((byte) 0x4),
COMPACTION_OUTFILE_SYNC_MICROS((byte) 0x5),
WAL_FILE_SYNC_MICROS((byte) 0x6),
MANIFEST_FILE_SYNC_MICROS((byte) 0x7),
/**
* TIME SPENT IN IO DURING TABLE OPEN.
*/
TABLE_OPEN_IO_MICROS((byte) 0x8),
DB_MULTIGET((byte) 0x9),
READ_BLOCK_COMPACTION_MICROS((byte) 0xA),
READ_BLOCK_GET_MICROS((byte) 0xB),
WRITE_RAW_BLOCK_MICROS((byte) 0xC),
STALL_L0_SLOWDOWN_COUNT((byte) 0xD),
STALL_MEMTABLE_COMPACTION_COUNT((byte) 0xE),
STALL_L0_NUM_FILES_COUNT((byte) 0xF),
HARD_RATE_LIMIT_DELAY_COUNT((byte) 0x10),
SOFT_RATE_LIMIT_DELAY_COUNT((byte) 0x11),
NUM_FILES_IN_SINGLE_COMPACTION((byte) 0x12),
DB_SEEK((byte) 0x13),
WRITE_STALL((byte) 0x14),
SST_READ_MICROS((byte) 0x15),
/**
* The number of subcompactions actually scheduled during a compaction.
*/
NUM_SUBCOMPACTIONS_SCHEDULED((byte) 0x16),
/**
* Value size distribution in each operation.
*/
BYTES_PER_READ((byte) 0x17),
BYTES_PER_WRITE((byte) 0x18),
BYTES_PER_MULTIGET((byte) 0x19),
/**
* number of bytes compressed.
*/
BYTES_COMPRESSED((byte) 0x1A),
/**
* number of bytes decompressed.
*
* number of bytes is when uncompressed; i.e. before/after respectively
*/
BYTES_DECOMPRESSED((byte) 0x1B),
COMPRESSION_TIMES_NANOS((byte) 0x1C),
DECOMPRESSION_TIMES_NANOS((byte) 0x1D),
READ_NUM_MERGE_OPERANDS((byte) 0x1E),
HISTOGRAM_ENUM_MAX((byte) 0x1F);
private final byte value;
HistogramType(final byte value) {
this.value = value;
}
public byte getValue() {
return value;
}
}
