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block options for prefixed

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This commit is contained in:
NikVolf 2016-07-13 18:43:24 +02:00
parent 0f83ef6a0b
commit 3ac33ceda0
2 changed files with 12 additions and 26 deletions
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4
Cargo.lock generated
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@ -1048,7 +1048,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "rocksdb"
version = "0.4.5"
source = "git+https://github.com/ethcore/rust-rocksdb#9be41e05923616dfa28741c58b22776d479751e6"
source = "git+https://github.com/ethcore/rust-rocksdb#6472a9dce16c267a3acec2ee6fd01d1bf8de4913"
dependencies = [
"libc 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)",
"rocksdb-sys 0.3.0 (git+https://github.com/ethcore/rust-rocksdb)",
@ -1057,7 +1057,7 @@ dependencies = [
[[package]]
name = "rocksdb-sys"
version = "0.3.0"
source = "git+https://github.com/ethcore/rust-rocksdb#9be41e05923616dfa28741c58b22776d479751e6"
source = "git+https://github.com/ethcore/rust-rocksdb#6472a9dce16c267a3acec2ee6fd01d1bf8de4913"
dependencies = [
"gcc 0.3.28 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)",

34
util/src/kvdb.rs
View File

@ -18,7 +18,7 @@
use std::default::Default;
use rocksdb::{DB, Writable, WriteBatch, IteratorMode, DBVector, DBIterator,
IndexType, Options, DBCompactionStyle, BlockBasedOptions, Direction};
IndexType, Options, DBCompactionStyle, BlockBasedOptions, Direction, Cache};
const DB_BACKGROUND_FLUSHES: i32 = 2;
const DB_BACKGROUND_COMPACTIONS: i32 = 2;
@ -169,35 +169,21 @@ impl Database {
opts.set_max_background_flushes(DB_BACKGROUND_FLUSHES);
opts.set_max_background_compactions(DB_BACKGROUND_COMPACTIONS);
if let Some(cache_size) = config.cache_size {
// half goes to read cache
opts.set_block_cache_size_mb(cache_size as u64 / 2);
// quarter goes to each of the two write buffers
opts.set_write_buffer_size(cache_size * 1024 * 256);
}
/*
opts.set_bytes_per_sync(8388608);
opts.set_disable_data_sync(false);
opts.set_block_cache_size_mb(1024);
opts.set_table_cache_num_shard_bits(6);
opts.set_max_write_buffer_number(32);
opts.set_write_buffer_size(536870912);
opts.set_target_file_size_base(1073741824);
opts.set_min_write_buffer_number_to_merge(4);
opts.set_level_zero_stop_writes_trigger(2000);
opts.set_level_zero_slowdown_writes_trigger(0);
opts.set_compaction_style(DBUniversalCompaction);
opts.set_max_background_compactions(4);
opts.set_max_background_flushes(4);
opts.set_filter_deletes(false);
opts.set_disable_auto_compactions(false);
*/
if let Some(size) = config.prefix_size {
let mut block_opts = BlockBasedOptions::new();
block_opts.set_index_type(IndexType::HashSearch);
opts.set_block_based_table_factory(&block_opts);
opts.set_prefix_extractor_fixed_size(size);
if let Some(cache_size) = config.cache_size {
block_opts.set_cache(Cache::new(cache_size * 1024 * 256));
opts.set_write_buffer_size(cache_size * 1024 * 256);
}
} else if let Some(cache_size) = config.cache_size {
// half goes to read cache
opts.set_block_cache_size_mb(cache_size as u64 / 2);
// quarter goes to each of the two write buffers
opts.set_write_buffer_size(cache_size * 1024 * 256);
}
let db = match DB::open(&opts, path) {
Ok(db) => db,