feat(tvix/eval): Add initial benchmarking infrastructure r/4489

Bootstrap some (initially very simple, mostly proof-of-concept)
benchmarking infrastructure using Criterion, using the newly-exposed lib
from tvix-eval.

Change-Id: I4bb93c142ba8d018d7e67e58ac8907a0429398a5
Reviewed-on: https://cl.tvl.fyi/c/depot/+/6156
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Autosubmit: grfn <grfn@gws.fyi>

1 files changed, 9 insertions, 0 deletions

diff --git a/tvix/eval/benches/eval.rs b/tvix/eval/benches/eval.rs
new file mode 100644
index 0000000000..a97adf02db
--- /dev/null
+++ b/tvix/eval/benches/eval.rs
@@ -0,0 +1,9 @@
+use criterion::{black_box, criterion_group, criterion_main, Criterion};
+use tvix_eval::interpret;
+
+fn eval_literals(c: &mut Criterion) {
+    c.bench_function("int", |b| b.iter(|| black_box(interpret("42"))));
+}
+
+criterion_group!(benches, eval_literals);
+criterion_main!(benches);