mirror of https://github.com/facebook/rocksdb.git
117 lines
4.4 KiB
C++
117 lines
4.4 KiB
C++
// 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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#pragma once
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#include <vector>
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#include "rocksdb/options.h"
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#include "rocksdb/immutable_options.h"
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namespace rocksdb {
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struct MutableCFOptions {
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MutableCFOptions(const Options& options, const ImmutableCFOptions& ioptions)
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: write_buffer_size(options.write_buffer_size),
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max_write_buffer_number(options.max_write_buffer_number),
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arena_block_size(options.arena_block_size),
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memtable_prefix_bloom_bits(options.memtable_prefix_bloom_bits),
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memtable_prefix_bloom_probes(options.memtable_prefix_bloom_probes),
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memtable_prefix_bloom_huge_page_tlb_size(
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options.memtable_prefix_bloom_huge_page_tlb_size),
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max_successive_merges(options.max_successive_merges),
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filter_deletes(options.filter_deletes),
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disable_auto_compactions(options.disable_auto_compactions),
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soft_rate_limit(options.soft_rate_limit),
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hard_rate_limit(options.hard_rate_limit),
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level0_file_num_compaction_trigger(
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options.level0_file_num_compaction_trigger),
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level0_slowdown_writes_trigger(options.level0_slowdown_writes_trigger),
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level0_stop_writes_trigger(options.level0_stop_writes_trigger),
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max_grandparent_overlap_factor(options.max_grandparent_overlap_factor),
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expanded_compaction_factor(options.expanded_compaction_factor),
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source_compaction_factor(options.source_compaction_factor),
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target_file_size_base(options.target_file_size_base),
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target_file_size_multiplier(options.target_file_size_multiplier),
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max_bytes_for_level_base(options.max_bytes_for_level_base),
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max_bytes_for_level_multiplier(options.max_bytes_for_level_multiplier),
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max_bytes_for_level_multiplier_additional(
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options.max_bytes_for_level_multiplier_additional)
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{
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RefreshDerivedOptions(ioptions);
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}
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MutableCFOptions()
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: write_buffer_size(0),
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max_write_buffer_number(0),
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arena_block_size(0),
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memtable_prefix_bloom_bits(0),
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memtable_prefix_bloom_probes(0),
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memtable_prefix_bloom_huge_page_tlb_size(0),
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max_successive_merges(0),
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filter_deletes(false),
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disable_auto_compactions(false),
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soft_rate_limit(0),
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hard_rate_limit(0),
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level0_file_num_compaction_trigger(0),
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level0_slowdown_writes_trigger(0),
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level0_stop_writes_trigger(0),
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max_grandparent_overlap_factor(0),
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expanded_compaction_factor(0),
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source_compaction_factor(0),
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target_file_size_base(0),
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target_file_size_multiplier(0),
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max_bytes_for_level_base(0),
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max_bytes_for_level_multiplier(0)
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{}
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// Must be called after any change to MutableCFOptions
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void RefreshDerivedOptions(const ImmutableCFOptions& ioptions);
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// Get the max file size in a given level.
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uint64_t MaxFileSizeForLevel(int level) const;
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// Returns maximum total bytes of data on a given level.
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uint64_t MaxBytesForLevel(int level) const;
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// Returns maximum total overlap bytes with grandparent
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// level (i.e., level+2) before we stop building a single
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// file in level->level+1 compaction.
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uint64_t MaxGrandParentOverlapBytes(int level) const;
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uint64_t ExpandedCompactionByteSizeLimit(int level) const;
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void Dump(Logger* log) const;
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// Memtable related options
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size_t write_buffer_size;
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int max_write_buffer_number;
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size_t arena_block_size;
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uint32_t memtable_prefix_bloom_bits;
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uint32_t memtable_prefix_bloom_probes;
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size_t memtable_prefix_bloom_huge_page_tlb_size;
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size_t max_successive_merges;
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bool filter_deletes;
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// Compaction related options
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bool disable_auto_compactions;
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double soft_rate_limit;
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double hard_rate_limit;
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int level0_file_num_compaction_trigger;
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int level0_slowdown_writes_trigger;
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int level0_stop_writes_trigger;
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int max_grandparent_overlap_factor;
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int expanded_compaction_factor;
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int source_compaction_factor;
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int target_file_size_base;
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int target_file_size_multiplier;
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uint64_t max_bytes_for_level_base;
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int max_bytes_for_level_multiplier;
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std::vector<int> max_bytes_for_level_multiplier_additional;
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// Derived options
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// Per-level target file size.
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std::vector<uint64_t> max_file_size;
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// Per-level max bytes
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std::vector<uint64_t> level_max_bytes;
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};
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} // namespace rocksdb
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