Files
neon/libs/utils/benches/benchmarks.rs
Arpad Müller a22be5af72 Migrate the last crates to edition 2024 (#10998)
Migrates the remaining crates to edition 2024. We like to stay on the
latest edition if possible. There is no functional changes, however some
code changes had to be done to accommodate the edition's breaking
changes.

Like the previous migration PRs, this is comprised of three commits:

* the first does the edition update and makes `cargo check`/`cargo
clippy` pass. we had to update bindgen to make its output [satisfy the
requirements of edition
2024](https://doc.rust-lang.org/edition-guide/rust-2024/unsafe-extern.html)
* the second commit does a `cargo fmt` for the new style edition.
* the third commit reorders imports as a one-off change. As before, it
is entirely optional.

Part of #10918
2025-02-27 09:40:40 +00:00

60 lines
1.9 KiB
Rust

use std::time::Duration;
use criterion::{Bencher, Criterion, criterion_group, criterion_main};
use pprof::criterion::{Output, PProfProfiler};
use utils::id;
use utils::logging::log_slow;
// Register benchmarks with Criterion.
criterion_group!(
name = benches;
config = Criterion::default().with_profiler(PProfProfiler::new(100, Output::Flamegraph(None)));
targets = bench_id_stringify,
bench_log_slow,
);
criterion_main!(benches);
pub fn bench_id_stringify(c: &mut Criterion) {
// Can only use public methods.
let ttid = id::TenantTimelineId::generate();
c.bench_function("id.to_string", |b| {
b.iter(|| {
// FIXME measurement overhead?
//for _ in 0..1000 {
// ttid.tenant_id.to_string();
//}
ttid.tenant_id.to_string();
})
});
}
pub fn bench_log_slow(c: &mut Criterion) {
for enabled in [false, true] {
c.bench_function(&format!("log_slow/enabled={enabled}"), |b| {
run_bench(b, enabled).unwrap()
});
}
// The actual benchmark.
fn run_bench(b: &mut Bencher, enabled: bool) -> anyhow::Result<()> {
const THRESHOLD: Duration = Duration::from_secs(1);
// Use a multi-threaded runtime to avoid thread parking overhead when yielding.
let runtime = tokio::runtime::Builder::new_multi_thread()
.enable_all()
.build()?;
// Test both with and without log_slow, since we're essentially measuring Tokio scheduling
// performance too. Use a simple noop future that yields once, to avoid any scheduler fast
// paths for a ready future.
if enabled {
b.iter(|| runtime.block_on(log_slow("ready", THRESHOLD, tokio::task::yield_now())));
} else {
b.iter(|| runtime.block_on(tokio::task::yield_now()));
}
Ok(())
}
}