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Use lz4 instead of zstd for the DB

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zstd was recommended for the base layer only, due to its CPU requirements. That
was a misreading on mhy behalf.

lz4 gets ~5% better compression than snappy with ~30% faster performance. zstd
does ~25% better than lz4 yet at ~30% of the performance.
This commit is contained in:
Luke Parker 2023-07-26 14:05:10 -04:00
parent 64c309f8db
commit 6d5851a9ee
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3 changed files with 3 additions and 3 deletions
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2
Cargo.lock generated
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@ -4713,8 +4713,8 @@ dependencies = [
"glob", "glob",
"libc", "libc",
"libz-sys", "libz-sys",
"lz4-sys",
"tikv-jemalloc-sys", "tikv-jemalloc-sys",
"zstd-sys",
] ]
[[package]] [[package]]

2
common/db/Cargo.toml
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@ -13,7 +13,7 @@ all-features = true
rustdoc-args = ["--cfg", "docsrs"] rustdoc-args = ["--cfg", "docsrs"]
[dependencies] [dependencies]
rocksdb = { version = "0.21", default-features = false, features = ["zstd"], optional = true } rocksdb = { version = "0.21", default-features = false, features = ["lz4"], optional = true }
[features] [features]
rocksdb = ["dep:rocksdb"] rocksdb = ["dep:rocksdb"]

2
common/db/src/rocks.rs
View file

@ -37,6 +37,6 @@ pub type RocksDB = Arc<TransactionDB<SingleThreaded>>;
pub fn new_rocksdb(path: &str) -> RocksDB { pub fn new_rocksdb(path: &str) -> RocksDB {
let mut options = Options::default(); let mut options = Options::default();
options.create_if_missing(true); options.create_if_missing(true);
options.set_compression_type(DBCompressionType::Zstd); options.set_compression_type(DBCompressionType::Lz4);
Arc::new(TransactionDB::open(&options, &Default::default(), path).unwrap()) Arc::new(TransactionDB::open(&options, &Default::default(), path).unwrap())
} }