feat: initialize Kurdistan SDK - independent fork of Polkadot SDK

substrate/client/tracing/benches/interest_cache_multithreaded.rs

@@ -0,0 +1,44 @@
+// This file is part of Substrate.
+//
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
+
+//! Benchmark multithreaded logging with interest cache configuration from INTEREST_CACHE env var.
+//!
+//! Usage:
+//! ```
+//! INTEREST_CACHE=lru_cache_size=1024,min_verbosity=debug cargo bench --bench interest_cache_multithreaded
+//! INTEREST_CACHE=default cargo bench --bench interest_cache_multithreaded
+//! INTEREST_CACHE=disabled cargo bench --bench interest_cache_multithreaded
+//! ```
+
+use criterion::{criterion_group, criterion_main, Criterion};
+
+mod common;
+
+fn bench_multithreaded(c: &mut Criterion) {
+	common::init_logger();
+	let mut group = c.benchmark_group("multithreaded");
+
+	group.bench_function("8_threads", |b| {
+		b.iter(|| {
+			let handles: Vec<_> = (0..8)
+				.map(|thread_id| {
+					std::thread::spawn(move || {
+						for i in 0..1000 {
+							log::debug!(target: "substrate", "thread {} msg {}", thread_id, i);
+							log::trace!(target: "runtime", "thread {} trace {}", thread_id, i);
+						}
+					})
+				})
+				.collect();
+			for handle in handles {
+				handle.join().unwrap();
+			}
+		})
+	});
+	group.finish();
+}
+
+criterion_group!(benches, bench_multithreaded);
+criterion_main!(benches);