From d19065e14a2f8a853b48b24ddca30089019c2fdd Mon Sep 17 00:00:00 2001
From: Kazuki Yamada <koukun0120@gmail.com>
Date: Sat, 28 Mar 2026 23:36:54 +0900
Subject: [PATCH] perf(ci): Extract benchmark-history script and increase runs

- Extract inline benchmark script to bench-run-history.mjs
- Increase measurement runs from 10/20/10 to 20/30/20 to match
  perf-benchmark.yml for consistency

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 .../perf-benchmark/bench-run-history.mjs      | 44 +++++++++++++++
 .github/workflows/perf-benchmark-history.yml  | 56 ++-----------------
 2 files changed, 48 insertions(+), 52 deletions(-)
 create mode 100644 .github/scripts/perf-benchmark/bench-run-history.mjs

diff --git a/.github/scripts/perf-benchmark/bench-run-history.mjs b/.github/scripts/perf-benchmark/bench-run-history.mjs
new file mode 100644
index 00000000..99fb37b4
--- /dev/null
+++ b/.github/scripts/perf-benchmark/bench-run-history.mjs
@@ -0,0 +1,44 @@
+import { execFileSync } from 'node:child_process';
+import { tmpdir } from 'node:os';
+import { join } from 'node:path';
+import { writeFileSync } from 'node:fs';
+
+const dir = process.argv[2];
+const output = join(tmpdir(), 'repomix-bench-output.txt');
+const runs = Number(process.env.BENCH_RUNS) || 20;
+const bin = join(dir, 'bin', 'repomix.cjs');
+
+// Warmup runs to stabilize OS page cache and JIT
+for (let i = 0; i < 2; i++) {
+  try {
+    execFileSync(process.execPath, [bin, dir, '--output', output], { stdio: 'ignore' });
+  } catch {}
+}
+
+// Measurement runs
+const times = [];
+for (let i = 0; i < runs; i++) {
+  const start = Date.now();
+  execFileSync(process.execPath, [bin, dir, '--output', output], { stdio: 'ignore' });
+  times.push(Date.now() - start);
+}
+
+times.sort((a, b) => a - b);
+const median = times[Math.floor(times.length / 2)];
+const q1 = times[Math.floor(times.length * 0.25)];
+const q3 = times[Math.floor(times.length * 0.75)];
+const iqr = q3 - q1;
+
+const osName = process.env.RUNNER_OS;
+
+// Output in customSmallerIsBetter format for github-action-benchmark
+const result = [{
+  name: `Repomix Pack (${osName})`,
+  unit: 'ms',
+  value: median,
+  range: '±' + iqr,
+  extra: `Median of ${runs} runs\nQ1: ${q1}ms, Q3: ${q3}ms\nAll times: ${times.join(', ')}ms`,
+}];
+
+writeFileSync(join(process.env.RUNNER_TEMP, 'bench-result.json'), JSON.stringify(result));
+console.log(`${osName}: median=${median}ms (±${iqr}ms)`);
diff --git a/.github/workflows/perf-benchmark-history.yml b/.github/workflows/perf-benchmark-history.yml
index 191de1a8..5fbaafc7 100644
--- a/.github/workflows/perf-benchmark-history.yml
+++ b/.github/workflows/perf-benchmark-history.yml
@@ -25,11 +25,11 @@ jobs:
       matrix:
         include:
           - os: ubuntu-latest
-            runs: 10
-          - os: macos-latest
             runs: 20
+          - os: macos-latest
+            runs: 30
           - os: windows-latest
-            runs: 10
+            runs: 20
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
@@ -47,55 +47,7 @@ jobs:
         shell: bash
         env:
           BENCH_RUNS: ${{ matrix.runs }}
-        run: |
-          cat > "$RUNNER_TEMP/benchmark.mjs" << 'BENCHSCRIPT'
-          import { execFileSync } from 'node:child_process';
-          import { tmpdir } from 'node:os';
-          import { join } from 'node:path';
-          import { writeFileSync } from 'node:fs';
-
-          const dir = process.argv[2];
-          const output = join(tmpdir(), 'repomix-bench-output.txt');
-          const runs = Number(process.env.BENCH_RUNS) || 10;
-          const bin = join(dir, 'bin', 'repomix.cjs');
-
-          // Warmup runs to stabilize OS page cache and JIT
-          for (let i = 0; i < 2; i++) {
-            try {
-              execFileSync(process.execPath, [bin, dir, '--output', output], { stdio: 'ignore' });
-            } catch {}
-          }
-
-          // Measurement runs
-          const times = [];
-          for (let i = 0; i < runs; i++) {
-            const start = Date.now();
-            execFileSync(process.execPath, [bin, dir, '--output', output], { stdio: 'ignore' });
-            times.push(Date.now() - start);
-          }
-
-          times.sort((a, b) => a - b);
-          const median = times[Math.floor(times.length / 2)];
-          const q1 = times[Math.floor(times.length * 0.25)];
-          const q3 = times[Math.floor(times.length * 0.75)];
-          const iqr = q3 - q1;
-
-          const osName = process.env.RUNNER_OS;
-
-          // Output in customSmallerIsBetter format for github-action-benchmark
-          const result = [{
-            name: `Repomix Pack (${osName})`,
-            unit: 'ms',
-            value: median,
-            range: '±' + iqr,
-            extra: `Median of ${runs} runs\nQ1: ${q1}ms, Q3: ${q3}ms\nAll times: ${times.join(', ')}ms`
-          }];
-
-          writeFileSync(join(process.env.RUNNER_TEMP, 'bench-result.json'), JSON.stringify(result));
-          console.log(`${osName}: median=${median}ms (±${iqr}ms)`);
-          BENCHSCRIPT
-
-          node "$RUNNER_TEMP/benchmark.mjs" "$GITHUB_WORKSPACE"
+        run: node .github/scripts/perf-benchmark/bench-run-history.mjs "$GITHUB_WORKSPACE"
 
       - name: Upload benchmark result
         uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0