1 // Copyright (c) 2016-present, Facebook, Inc. All rights reserved. 2 // This source code is licensed under both the GPLv2 (found in the 3 // COPYING file in the root directory) and Apache 2.0 License 4 // (found in the LICENSE.Apache file in the root directory). 5 6 #pragma once 7 8 #include "rocksdb/rocksdb_namespace.h" 9 10 struct CompactionIterationStats { 11 // Compaction statistics 12 13 // Doesn't include records skipped because of 14 // CompactionFilter::Decision::kRemoveAndSkipUntil. 15 int64_t num_record_drop_user = 0; 16 17 int64_t num_record_drop_hidden = 0; 18 int64_t num_record_drop_obsolete = 0; 19 int64_t num_record_drop_range_del = 0; 20 int64_t num_range_del_drop_obsolete = 0; 21 // Deletions obsoleted before bottom level due to file gap optimization. 22 int64_t num_optimized_del_drop_obsolete = 0; 23 uint64_t total_filter_time = 0; 24 25 // Input statistics 26 // TODO(noetzli): The stats are incomplete. They are lacking everything 27 // consumed by MergeHelper. 28 uint64_t num_input_records = 0; 29 uint64_t num_input_deletion_records = 0; 30 uint64_t num_input_corrupt_records = 0; 31 uint64_t total_input_raw_key_bytes = 0; 32 uint64_t total_input_raw_value_bytes = 0; 33 34 // Single-Delete diagnostics for exceptional situations 35 uint64_t num_single_del_fallthru = 0; 36 uint64_t num_single_del_mismatch = 0; 37 }; 38