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use criterion::{black_box, criterion_group, criterion_main, Criterion};
use lazy_static::lazy_static;
use std::{env, rc::Rc, sync::Arc, time::Duration};
use tvix_build::buildservice::DummyBuildService;
use tvix_castore::{
blobservice::{BlobService, MemoryBlobService},
directoryservice::{DirectoryService, MemoryDirectoryService},
};
use tvix_eval::{builtins::impure_builtins, EvalIO};
use tvix_glue::{
builtins::{add_derivation_builtins, add_fetcher_builtins},
configure_nix_path,
tvix_io::TvixIO,
tvix_store_io::TvixStoreIO,
};
use tvix_store::pathinfoservice::{MemoryPathInfoService, PathInfoService};
lazy_static! {
static ref BLOB_SERVICE: Arc<dyn BlobService> = Arc::new(MemoryBlobService::default());
static ref DIRECTORY_SERVICE: Arc<dyn DirectoryService> =
Arc::new(MemoryDirectoryService::default());
static ref PATH_INFO_SERVICE: Arc<dyn PathInfoService> = Arc::new(MemoryPathInfoService::new(
BLOB_SERVICE.clone(),
DIRECTORY_SERVICE.clone(),
));
static ref TOKIO_RUNTIME: tokio::runtime::Runtime = tokio::runtime::Runtime::new().unwrap();
}
fn interpret(code: &str) {
// TODO: this is a bit annoying.
// It'd be nice if we could set this up once and then run evaluate() with a
// piece of code. b/262
// We assemble a complete store in memory.
let tvix_store_io = Rc::new(TvixStoreIO::new(
BLOB_SERVICE.clone(),
DIRECTORY_SERVICE.clone(),
PATH_INFO_SERVICE.clone(),
Arc::<DummyBuildService>::default(),
TOKIO_RUNTIME.handle().clone(),
));
let mut eval = tvix_eval::Evaluation::new(
Box::new(TvixIO::new(tvix_store_io.clone() as Rc<dyn EvalIO>)) as Box<dyn EvalIO>,
true,
);
eval.builtins.extend(impure_builtins());
add_derivation_builtins(&mut eval, tvix_store_io.clone());
add_fetcher_builtins(&mut eval, tvix_store_io);
configure_nix_path(
&mut eval,
// The benchmark requires TVIX_BENCH_NIX_PATH to be set, so barf out
// early, rather than benchmarking tvix returning an error.
&Some(env::var("TVIX_BENCH_NIX_PATH").expect("TVIX_BENCH_NIX_PATH must be set")),
);
let result = eval.evaluate(code, None);
assert!(result.errors.is_empty());
}
fn eval_nixpkgs(c: &mut Criterion) {
c.bench_function("hello outpath", |b| {
b.iter(|| {
interpret(black_box("(import <nixpkgs> {}).hello.outPath"));
})
});
}
criterion_group!(
name = benches;
config = Criterion::default().measurement_time(Duration::from_secs(30)).sample_size(10);
targets = eval_nixpkgs
);
criterion_main!(benches);
|
