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configurable cache size

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This commit is contained in:
Nikolay Volf
2016-06-20 13:42:04 +03:00
parent bf6308312e
commit 7e452ab2e0
15 changed files with 88 additions and 19 deletions
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14
ethcore/src/blockchain/blockchain.rs
View File

@@ -253,12 +253,22 @@ impl BlockChain {
// open extras db
let mut extras_path = path.to_path_buf();
extras_path.push("extras");
let extras_db = Database::open_default(extras_path.to_str().unwrap()).unwrap();
let extras_db = match config.db_cache_size {
None => Database::open_default(extras_path.to_str().unwrap()).unwrap(),
Some(cache_size) => Database::open(
&DatabaseConfig::with_cache(cache_size/2),
extras_path.to_str().unwrap()).unwrap(),
};
// open blocks db
let mut blocks_path = path.to_path_buf();
blocks_path.push("blocks");
let blocks_db = Database::open_default(blocks_path.to_str().unwrap()).unwrap();
let blocks_db = match config.db_cache_size {
None => Database::open_default(blocks_path.to_str().unwrap()).unwrap(),
Some(cache_size) => Database::open(
&DatabaseConfig::with_cache(cache_size/2),
blocks_path.to_str().unwrap()).unwrap(),
};
let mut cache_man = CacheManager{cache_usage: VecDeque::new(), in_use: HashSet::new()};
(0..COLLECTION_QUEUE_SIZE).foreach(|_| cache_man.cache_usage.push_back(HashSet::new()));

3
ethcore/src/blockchain/config.rs
View File

@@ -23,6 +23,8 @@ pub struct Config {
pub pref_cache_size: usize,
/// Maximum cache size in bytes.
pub max_cache_size: usize,
/// Backing db cache_size
pub db_cache_size: Option<usize>,
}
impl Default for Config {
@@ -30,6 +32,7 @@ impl Default for Config {
Config {
pref_cache_size: 1 << 14,
max_cache_size: 1 << 20,
db_cache_size: None,
}
}
}