配置：16核CPU，32G内存，1T SSD硬盘（写带宽：234MB/S | 读带宽: 2.9GB/S）
allow_os_buffer = false
max_open_files = -1
disable_wal = false
enable_pipelined_write = true
#max_background_flushes = 4
#max_background_compactions = 16
#以上两参数已被max_background_jobs取代, 可加速Flush和Compaction
max_background_jobs = 16
max_subcompactions = 4
background_rate_limit = 160M
background_rate_limit_fairness = 10
background_rate_limit_mode = 0 #0:write 1:read 2:all
background_rate_limit_auto_tune = false
avoid_unnecessary_blocking_io = false
write_buffer_size = 512MB
max_write_buffer_number = 4
min_write_buffer_number_to_merge = 2
target_file_size_base = 64MB
max_bytes_for_level_base = 4096MB
num_levels = 6
block_size = 32KB
block_cache_size = 4096MB
#官方推荐前面n-1层的压缩首选用LZ4，其次Snappy
compression = 4
#最底层首选用ZStand，其次Zlib
bottommost_compression = 7
cache_index_and_filter_blocks = 1
pin_l0_filter_and_index_blocks_in_cache = 1
partition_filters = 1
level0_file_num_compaction_trigger = 8
level0_slowdown_writes_trigger = 24
level0_stop_writes_trigger = 40