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Merge pull request #60 from Kerollmops/improve-perfs

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Improve performances
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Clément Renault 2019-01-01 17:03:41 +01:00 committed by GitHub
commit b2e9ae4136
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4 changed files with 18 additions and 3 deletions
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10
Cargo.toml
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@ -29,21 +29,25 @@ rev = "c2eb140"
[dependencies.group-by] [dependencies.group-by]
git = "https://github.com/Kerollmops/group-by.git" git = "https://github.com/Kerollmops/group-by.git"
rev = "cab857b" rev = "f1f5d8f"
[features] [features]
default = ["simd"] default = ["simd"]
i128 = ["bincode/i128", "byteorder/i128"] i128 = ["bincode/i128", "byteorder/i128"]
simd = ["rocksdb/sse"]
portable = ["rocksdb/portable"] portable = ["rocksdb/portable"]
nightly = [] simd = ["rocksdb/sse"]
nightly = ["hashbrown/nightly", "group-by/nightly"]
[dev-dependencies] [dev-dependencies]
csv = "1.0" csv = "1.0"
elapsed = "0.1" elapsed = "0.1"
jemallocator = "0.1"
quickcheck = "0.7" quickcheck = "0.7"
rand = "0.6" rand = "0.6"
rand_xorshift = "0.1" rand_xorshift = "0.1"
structopt = "0.2" structopt = "0.2"
tempfile = "3.0" tempfile = "3.0"
termcolor = "1.0" termcolor = "1.0"
[profile.release]
debug = true

5
README.md
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@ -32,6 +32,11 @@ We made some tests on remote machines and found that we can handle with a datase
Network is mesured, servers are located in amsterdam and tests are made between two different datacenters. Network is mesured, servers are located in amsterdam and tests are made between two different datacenters.
### Notes
The default Rust allocator has recently been [changed to use the system allocator](https://github.com/rust-lang/rust/pull/51241/).
We have seen much better performances when [using jemalloc as the global allocator](https://github.com/alexcrichton/jemallocator#documentation).
## Usage and examples ## Usage and examples

3
examples/create-database.rs
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@ -1,3 +1,6 @@
#[global_allocator]
static ALLOC: jemallocator::Jemalloc = jemallocator::Jemalloc;
use std::path::{Path, PathBuf}; use std::path::{Path, PathBuf};
use std::error::Error; use std::error::Error;
use std::borrow::Cow; use std::borrow::Cow;

3
examples/query-database.rs
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@ -1,3 +1,6 @@
#[global_allocator]
static ALLOC: jemallocator::Jemalloc = jemallocator::Jemalloc;
use std::collections::btree_map::{BTreeMap, Entry}; use std::collections::btree_map::{BTreeMap, Entry};
use std::iter::FromIterator; use std::iter::FromIterator;
use std::io::{self, Write}; use std::io::{self, Write};