chore: update benchmark

Author: shenxianpeng

.github/workflows/benchmark.yml

@@ -9,6 +9,4 @@ pre-commit try-repo  ./.. clang-tidy  --verbose --all-files
 
 ## Benchmark
 
-```bash
-python3 testing/benchmark_hooks.py
-```
+See [benchmark](./benchmark.md).

testing/README.md

@@ -4,26 +4,69 @@ This document outlines the benchmarking process for comparing the performance of
 
 > About tests performance can be found at: [![CodSpeed Badge](https://img.shields.io/endpoint?url=https://codspeed.io/badge.json)](https://codspeed.io/cpp-linter/cpp-linter-hooks)
 
-## Running the Benchmark
+## Run benchmark separately
 
 ```bash
-python3 testing/benchmark_hooks.py
+rm -rf examples || true
+git clone --depth 1 --quiet https://github.com/gouravthakur39/beginners-C-program-examples.git examples
 
-# or
+pre-commit clean
+hyperfine --warmup 1 -r 10 'pre-commit run --config testing/test-cpp-linter-hooks.yaml --all-files'
 
-hyperfine -i --warmup 1 -r 5 'pre-commit run --config ../testing/benchmark_hook_1.yaml --all-files' 'pre-commit run --config ../testing/benchmark_hook_2.yaml --all-files'
+rm -rf examples || true
+git clone --depth 1 --quiet https://github.com/gouravthakur39/beginners-C-program-examples.git examples
+pre-commit clean
+
+hyperfine --warmup 1 -r 10 'pre-commit run --config testing/test-mirrors-clang-format.yaml --all-files'
+```
+
+Results:
+
+```bash
+# Updated on 2025-09-19
+
+Cleaned /home/sxp/.cache/pre-commit.
+Benchmark 1: pre-commit run --config testing/test-cpp-linter-hooks.yaml --all-files
+  Time (mean ± σ):     150.2 ms ±   1.8 ms    [User: 121.7 ms, System: 29.2 ms]
+  Range (min … max):   148.3 ms … 153.9 ms    10 runs
+
+Cleaned /home/sxp/.cache/pre-commit.
+Benchmark 1: pre-commit run --config testing/test-mirrors-clang-format.yaml --all-files
+  Time (mean ± σ):     122.6 ms ±   1.9 ms    [User: 98.0 ms, System: 24.7 ms]
+  Range (min … max):   120.3 ms … 125.5 ms    10 runs
+```
+
+### Run benchmark comparison
+
+Compare the results of both commands.
+
+```bash
+rm -rf examples || true
+git clone --depth 1 --quiet https://github.com/gouravthakur39/beginners-C-program-examples.git examples
+
+hyperfine -i --warmup 1 -r 20 'pre-commit run --config ../testing/test-cpp-linter-hooks.yaml --all-files' 'pre-commit run --config ../testing/test-mirrors-clang-format.yaml --all-files'
 ```
 
-## Results
+Results:
 
 ```bash
-# Updated on 2025-09-02
-Benchmark Results:
+# Updated on 2025-09-19
+Benchmark 1: pre-commit run --config ../testing/test-cpp-linter-hooks.yaml --all-files
+  Time (mean ± σ):      84.1 ms ±   3.2 ms    [User: 73.5 ms, System: 10.2 ms]
+  Range (min … max):    79.7 ms …  95.2 ms    20 runs
+
+  Warning: Ignoring non-zero exit code.
 
-Hook                 | Avg (s)          | Std (s)          | Min (s)          | Max (s)          | Runs
----------------------+------------------+------------------+------------------+------------------+-----------------
-cpp-linter-hooks     | 12.473           | 1.738            | 11.334           | 15.514           | 5
-mirrors-clang-format | 4.960            | 0.229            | 4.645            | 5.284            | 5
+Benchmark 2: pre-commit run --config ../testing/test-mirrors-clang-format.yaml --all-files
+  Time (mean ± σ):      85.0 ms ±   3.0 ms    [User: 71.8 ms, System: 13.3 ms]
+  Range (min … max):    81.0 ms …  91.0 ms    20 runs
 
-Results saved to testing/benchmark_results.txt
+  Warning: Ignoring non-zero exit code.
+
+Summary
+  'pre-commit run --config ../testing/test-cpp-linter-hooks.yaml --all-files' ran
+    1.01 ± 0.05 times faster than 'pre-commit run --config ../testing/test-mirrors-clang-format.yaml --all-files'
 ```
+
+> [!NOTE]
+> The results may vary based on the system and environment where the benchmarks are run.

testing/benchmark.md

@@ -1,6 +1,8 @@
 #include <stdio.h>
-int main() {
-  for (;;) break;
-  printf("Hello world!\n");
-  return 0;
+int main()
+{
+    for (;;)
+        break;
+    printf("Hello world!\n");
+    return 0;
 }

testing/benchmark_hooks.py

@@ -1,2 +1,8 @@
 #include <stdio.h>
-int main() {for (;;) break; printf("Hello world!\n");return 0;}
+int main()
+{
+    for (;;)
+        break;
+    printf("Hello world!\n");
+    return 0;
+}

testing/benchmark_results.txt

@@ -2,5 +2,5 @@ repos:
   - repo: https://github.com/cpp-linter/cpp-linter-hooks
     rev: v1.1.3
     hooks:
-      - id: clang-format
+      - id: clang-format  # v 21.1.0
         args: [--style=file]