fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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91 lines
3.0 KiB
91 lines
3.0 KiB
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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#pragma once
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#include <stddef.h>
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#include <stdint.h>
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#include <string>
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namespace rocksdb {
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struct CompactionJobStats {
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CompactionJobStats() { Reset(); }
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void Reset();
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// Aggregate the CompactionJobStats from another instance with this one
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void Add(const CompactionJobStats& stats);
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// the elapsed time of this compaction in microseconds.
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uint64_t elapsed_micros;
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// the number of compaction input records.
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uint64_t num_input_records;
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// the number of compaction input files.
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size_t num_input_files;
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// the number of compaction input files at the output level.
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size_t num_input_files_at_output_level;
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// the number of compaction output records.
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uint64_t num_output_records;
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// the number of compaction output files.
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size_t num_output_files;
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// true if the compaction is a manual compaction
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bool is_manual_compaction;
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// the size of the compaction input in bytes.
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uint64_t total_input_bytes;
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// the size of the compaction output in bytes.
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uint64_t total_output_bytes;
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// number of records being replaced by newer record associated with same key.
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// this could be a new value or a deletion entry for that key so this field
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// sums up all updated and deleted keys
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uint64_t num_records_replaced;
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// the sum of the uncompressed input keys in bytes.
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uint64_t total_input_raw_key_bytes;
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// the sum of the uncompressed input values in bytes.
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uint64_t total_input_raw_value_bytes;
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// the number of deletion entries before compaction. Deletion entries
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// can disappear after compaction because they expired
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uint64_t num_input_deletion_records;
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// number of deletion records that were found obsolete and discarded
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// because it is not possible to delete any more keys with this entry
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// (i.e. all possible deletions resulting from it have been completed)
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uint64_t num_expired_deletion_records;
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// number of corrupt keys (ParseInternalKey returned false when applied to
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// the key) encountered and written out.
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uint64_t num_corrupt_keys;
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// Following counters are only populated if
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// options.report_bg_io_stats = true;
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// Time spent on file's Append() call.
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uint64_t file_write_nanos;
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// Time spent on sync file range.
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uint64_t file_range_sync_nanos;
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// Time spent on file fsync.
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uint64_t file_fsync_nanos;
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// Time spent on preparing file write (fallocate, etc)
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uint64_t file_prepare_write_nanos;
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// 0-terminated strings storing the first 8 bytes of the smallest and
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// largest key in the output.
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static const size_t kMaxPrefixLength = 8;
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std::string smallest_output_key_prefix;
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std::string largest_output_key_prefix;
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// number of single-deletes which do not meet a put
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uint64_t num_single_del_fallthru;
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// number of single-deletes which meet something other than a put
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uint64_t num_single_del_mismatch;
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};
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} // namespace rocksdb
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