diff options
| -rw-r--r-- | incria/Cargo.lock | 587 | ||||
| -rw-r--r-- | incria/Cargo.toml | 5 | ||||
| -rw-r--r-- | incria/README.md | 2 | ||||
| -rw-r--r-- | incria/benches/spreadsheet.rs | 71 | ||||
| -rw-r--r-- | incria/examples/spreadsheet.rs | 51 |
5 files changed, 663 insertions, 53 deletions
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"registry+https://github.com/rust-lang/crates.io-index" diff --git a/incria/Cargo.toml b/incria/Cargo.toml index 608c926..f22bd7b 100644 --- a/incria/Cargo.toml +++ b/incria/Cargo.toml @@ -8,3 +8,8 @@ tokio = { version = "1.28.1", features = ["sync", "rt"] } [dev-dependencies] tokio = { version = "1.28.1", features = ["macros", "sync", "rt-multi-thread"] } +criterion = { version = "0.4", features = ["async_tokio"] } + +[[bench]] +name = "spreadsheet" +harness = false
\ No newline at end of file diff --git a/incria/README.md b/incria/README.md index 6c38ae8..b4ce521 100644 --- a/incria/README.md +++ b/incria/README.md @@ -6,4 +6,4 @@ It lets you record what a calculation depends on and then only re-run that calcu This is similar to the [query system used by the Rust compiler](https://rustc-dev-guide.rust-lang.org/query.html), but implemented using async. By seperating the tracking of dependencies from the calculation logic, you can write clean code that re-runs only when it needs to, and can be parallelised with little extra work. -For more info, read the rustdoc or check the [examples]($ROOT/dir?ci=tip&name=examples). +For more info, read the rustdoc or check the [examples]($ROOT/dir?ci=tip&name=benches). diff --git a/incria/benches/spreadsheet.rs b/incria/benches/spreadsheet.rs new file mode 100644 index 0000000..ada4b22 --- /dev/null +++ b/incria/benches/spreadsheet.rs @@ -0,0 +1,71 @@ +use std::{future::Future, pin::Pin, sync::OnceLock}; + +use criterion::{black_box, criterion_group, criterion_main, Criterion}; +use incria::{ + deps, + thunk::{Thunk, ThunkMapper}, + Mapper, +}; + +type Key = (usize, usize); +type Value = usize; + +#[derive(Debug, Default)] +struct CellThunk; + +impl Thunk<Key, Value> for CellThunk { + fn compute(&self, key: Key) -> Pin<Box<dyn Future<Output = Value> + Send + '_>> { + Box::pin(async move { + if key.0 > 0 { + let prev1 = *cell_mapping().get(&(key.0 - 1, key.1 - 1)).await; + let prev2 = *cell_mapping().get(&(key.0 - 1, key.1)).await; + let prev3 = *cell_mapping().get(&(key.0 - 1, key.1 + 1)).await; + let val = prev1 + prev2 + prev3; + + if val > 10_000 { + 1 + } else { + val + } + } else { + 1 + } + }) + } +} + +fn calc_raw(key: Key) -> Value { + if key.0 > 0 { + let prev1 = calc_raw((key.0 - 1, key.1 - 1)); + let prev2 = calc_raw((key.0 - 1, key.1)); + let prev3 = calc_raw((key.0 - 1, key.1 + 1)); + let val = prev1 + prev2 + prev3; + + if val > 10_000 { + 1 + } else { + val + } + } else { + 1 + } +} + +type CellMapping = ThunkMapper<Key, Value, CellThunk>; +static CELL_MAPPING: OnceLock<CellMapping> = OnceLock::new(); +fn cell_mapping() -> &'static CellMapping { + CELL_MAPPING.get_or_init(CellMapping::default) +} + +fn criterion_benchmark(c: &mut Criterion) { + c.bench_function("spreadsheet non-incria (n = 5)", |b| { + b.iter(|| calc_raw(black_box((5, 5)))); + }); + c.bench_function("spreadsheet fresh (n = 5)", |b| { + b.to_async(tokio::runtime::Runtime::new().unwrap()) + .iter(|| deps::with_node_id(deps::next_node_id(), cell_mapping().get(&(5, 5)))); + }); +} + +criterion_group!(benches, criterion_benchmark); +criterion_main!(benches); diff --git a/incria/examples/spreadsheet.rs b/incria/examples/spreadsheet.rs deleted file mode 100644 index 92bb506..0000000 --- a/incria/examples/spreadsheet.rs +++ /dev/null @@ -1,51 +0,0 @@ -use std::{future::Future, pin::Pin, sync::OnceLock}; - -use incria::{ - deps, - thunk::{Thunk, ThunkMapper}, - Mapper, -}; - -type Key = (usize, usize); -type Value = usize; - -#[derive(Debug, Default)] -struct CellThunk; - -impl Thunk<Key, Value> for CellThunk { - fn compute(&self, key: Key) -> Pin<Box<dyn Future<Output = Value> + Send + '_>> { - Box::pin(async move { - if key.0 > 0 { - let prev1 = *cell_mapping().get(&(key.0 - 1, key.1 - 1)).await; - let prev2 = *cell_mapping().get(&(key.0 - 1, key.1)).await; - let prev3 = *cell_mapping().get(&(key.0 - 1, key.1 + 1)).await; - prev1 + prev2 + prev3 - } else { - 1 - } - }) - } -} - -type CellMapping = ThunkMapper<Key, Value, CellThunk>; -static CELL_MAPPING: OnceLock<CellMapping> = OnceLock::new(); -fn cell_mapping() -> &'static CellMapping { - CELL_MAPPING.get_or_init(CellMapping::default) -} - -const N: usize = 5; - -#[tokio::main] -async fn main() { - deps::with_node_id(deps::next_node_id(), async { - let val = *dbg!(cell_mapping().get(&(N, N)).await); - // println!("{}", dep_graphviz()); - - deps::mark_dirty(21); - // println!("{}", dep_graphviz()); - - assert_eq!(val, *cell_mapping().get(&(N, N)).await); - println!("{}", deps::dep_graphviz()); - }) - .await; -} |