generate-benchmark-data.py

"""
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"""
import subprocess
import os
import json


def run_size_benchmarks(
    src_path: str,
    bin_names: list[str],
    outpath: str,
):
    print("========== Running size benchmarks ==========")
    os.chdir(src_path)
    bins = " ".join(f"--bin={b}" for b in bin_names)
    print("============ Building artifacts =============")
    subprocess.run(f"cargo build --release {bins}".split(" "))
    results = {}
    for b in bin_names:
        results[b] = {}
        subprocess.run(f"cargo objcopy --release --bin={b} -- -O binary target/thumbv6m-none-eabi/release/{b}.bin".split(" "))
        results[b]["raw_size"] = os.stat(f"target/thumbv6m-none-eabi/release/{b}.bin").st_size
        bloat_output = subprocess.run(
            f"cargo bloat --release --message-format=json -n=0 --bin={b}".split(" "),
            capture_output=True,
            ).stdout
        results[b]["cargo_bloat"] = json.loads(bloat_output)
        bloat_output = subprocess.run(
            f"cargo bloat --release --message-format=json -n=0 --bin={b} --crates".split(" "),
            capture_output=True,
            ).stdout
        results[b]["cargo_bloat_crates"] = json.loads(bloat_output)
    os.chdir("..")
    with open(f"{outpath}/benchmarks-size.json", "w+") as f:
        json.dump(results, f)
        
def run_benchmarks(
        outpath: str ="benchmark-output",
):
    os.makedirs(outpath, exist_ok=True)
    run_size_benchmarks(
        src_path="bt2x-pi-pico-w",
        bin_names=[
            "benchmark-code-size-full",
            "benchmark-code-size-no-tuf",
            "benchmark-code-size-signature-only",
            "benchmark-code-size-update-only",
        ],
        outpath="benchmark-output",
    )


if __name__ == "__main__":
    run_benchmarks()