test code for system load

.gitignore

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+/target

Cargo.toml

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+[package]
+name = "perfomance-checker"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+rand = "0.8.5"

src/main.rs

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+use std::thread;
+
+fn factorial(n: u64) -> u64 {
+    if n == 0 || n == 1 {
+        return 1;
+    }
+    n * factorial(n - 1)
+}
+
+fn main() {
+    let num_threads = 10;
+
+    let handles: Vec<_> = (0..num_threads)
+        .map(|_| {
+            thread::spawn(|| {
+                loop {
+                    let num = rand::random::<u64>() % 20;
+                    let result = factorial(num);
+                    println!("Factorial of {}: {}", num, result);
+                }
+            })
+        })
+        .collect();
+
+    for handle in handles {
+        handle.join().unwrap();
+    }
+}