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@ -22,7 +22,7 @@ fn db_options(cache_capacity_bytes: usize, rocksdb_cache: &rocksdb::Cache) -> ro
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// "Difference of spinning disk"
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// "Difference of spinning disk"
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// https://zhangyuchi.gitbooks.io/rocksdbbook/content/RocksDB-Tuning-Guide.html
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// https://zhangyuchi.gitbooks.io/rocksdbbook/content/RocksDB-Tuning-Guide.html
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block_based_options.set_block_size(64 * 1024);
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block_based_options.set_block_size(4 * 1024);
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block_based_options.set_cache_index_and_filter_blocks(true);
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block_based_options.set_cache_index_and_filter_blocks(true);
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let mut db_opts = rocksdb::Options::default();
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let mut db_opts = rocksdb::Options::default();
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@ -31,9 +31,9 @@ fn db_options(cache_capacity_bytes: usize, rocksdb_cache: &rocksdb::Cache) -> ro
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db_opts.set_skip_stats_update_on_db_open(true);
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db_opts.set_skip_stats_update_on_db_open(true);
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db_opts.set_level_compaction_dynamic_level_bytes(true);
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db_opts.set_level_compaction_dynamic_level_bytes(true);
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db_opts.set_target_file_size_base(256 * 1024 * 1024);
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db_opts.set_target_file_size_base(256 * 1024 * 1024);
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db_opts.set_compaction_readahead_size(2 * 1024 * 1024);
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//db_opts.set_compaction_readahead_size(2 * 1024 * 1024);
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db_opts.set_use_direct_reads(true);
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//db_opts.set_use_direct_reads(true);
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db_opts.set_use_direct_io_for_flush_and_compaction(true);
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//db_opts.set_use_direct_io_for_flush_and_compaction(true);
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db_opts.create_if_missing(true);
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db_opts.create_if_missing(true);
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db_opts.increase_parallelism(num_cpus::get() as i32);
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db_opts.increase_parallelism(num_cpus::get() as i32);
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db_opts.set_max_open_files(512);
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db_opts.set_max_open_files(512);
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