Add helloworld-tiny benchmark

Author: Kobzol

collector/benchmarks/README.md

@@ -27,6 +27,8 @@ They mostly consist of real-world crates.
   trait bounds, by having a lot of trait impls for a large number of different
   types.
 - **helloworld**: A trivial program. Gives a lower bound on compile time.
+- **helloworld-tiny**: A trivial program optimized with flags that should reduce binary size.
+  Gives a lower bound on compiled binary size.
 - **html5ever-0.26.0**: An HTML parser. Stresses macro parsing code.
 - **hyper-0.14.18**: A fairly large crate. Utilizes async/await, and used by
   many Rust programs. The crate uses cargo features to enable large portions of its

collector/benchmarks/helloworld-tiny/Cargo.lock

@@ -0,0 +1,15 @@
+[package]
+name = "helloworld-tiny"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+
+[workspace]
+
+[profile.release]
+opt-level = "z"
+lto = true
+codegen-units = 1
+panic = "abort"
+strip = true

collector/benchmarks/helloworld-tiny/Cargo.toml

@@ -0,0 +1,5 @@
+{
+    "category": "secondary",
+    "excluded_profiles": ["Doc", "Check", "Debug"],
+    "excluded_scenarios": ["IncrFull", "IncrPatched", "IncrUnchanged"]
+}

collector/benchmarks/helloworld-tiny/perf-config.json

@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello world!");
+}