fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
85 lines
2.9 KiB
85 lines
2.9 KiB
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
|
|
// This source code is licensed under the BSD-style license found in the
|
|
// LICENSE file in the root directory of this source tree. An additional grant
|
|
// of patent rights can be found in the PATENTS file in the same directory.
|
|
|
|
#pragma once
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
#include <string>
|
|
|
|
namespace rocksdb {
|
|
struct CompactionJobStats {
|
|
CompactionJobStats() { Reset(); }
|
|
void Reset();
|
|
// Aggregate the CompactionJobStats from another instance with this one
|
|
void Add(const CompactionJobStats& stats);
|
|
|
|
// the elapsed time in micro of this compaction.
|
|
uint64_t elapsed_micros;
|
|
|
|
// the number of compaction input records.
|
|
uint64_t num_input_records;
|
|
// the number of compaction input files.
|
|
size_t num_input_files;
|
|
// the number of compaction input files at the output level.
|
|
size_t num_input_files_at_output_level;
|
|
|
|
// the number of compaction output records.
|
|
uint64_t num_output_records;
|
|
// the number of compaction output files.
|
|
size_t num_output_files;
|
|
|
|
// true if the compaction is a manual compaction
|
|
bool is_manual_compaction;
|
|
|
|
// the size of the compaction input in bytes.
|
|
uint64_t total_input_bytes;
|
|
// the size of the compaction output in bytes.
|
|
uint64_t total_output_bytes;
|
|
|
|
// number of records being replaced by newer record associated with same key.
|
|
// this could be a new value or a deletion entry for that key so this field
|
|
// sums up all updated and deleted keys
|
|
uint64_t num_records_replaced;
|
|
|
|
// the sum of the uncompressed input keys in bytes.
|
|
uint64_t total_input_raw_key_bytes;
|
|
// the sum of the uncompressed input values in bytes.
|
|
uint64_t total_input_raw_value_bytes;
|
|
|
|
// the number of deletion entries before compaction. Deletion entries
|
|
// can disappear after compaction because they expired
|
|
uint64_t num_input_deletion_records;
|
|
// number of deletion records that were found obsolete and discarded
|
|
// because it is not possible to delete any more keys with this entry
|
|
// (i.e. all possible deletions resulting from it have been completed)
|
|
uint64_t num_expired_deletion_records;
|
|
|
|
// number of corrupt keys (ParseInternalKey returned false when applied to
|
|
// the key) encountered and written out.
|
|
uint64_t num_corrupt_keys;
|
|
|
|
// Following counters are only populated if
|
|
// options.compaction_measure_io_stats = true;
|
|
|
|
// Time spent on file's Append() call.
|
|
uint64_t file_write_nanos;
|
|
|
|
// Time spent on sync file range.
|
|
uint64_t file_range_sync_nanos;
|
|
|
|
// Time spent on file fsync.
|
|
uint64_t file_fsync_nanos;
|
|
|
|
// Time spent on preparing file write (falocate, etc)
|
|
uint64_t file_prepare_write_nanos;
|
|
|
|
// 0-terminated strings storing the first 8 bytes of the smallest and
|
|
// largest key in the output.
|
|
static const size_t kMaxPrefixLength = 8;
|
|
|
|
std::string smallest_output_key_prefix;
|
|
std::string largest_output_key_prefix;
|
|
};
|
|
} // namespace rocksdb
|
|
|