Add CLI startup speed benchmark (#7617)

1 files changed, 4 insertions, 10 deletions

diff --git a/benchmark/bench/render.js b/benchmark/bench/render.js
index 449a1056f..aaeb0d022 100644
--- a/benchmark/bench/render.js
+++ b/benchmark/bench/render.js
@@ -6,14 +6,13 @@ import { execaCommand } from 'execa';
 import { waitUntilBusy } from 'port-authority';
 import { markdownTable } from 'markdown-table';
 import { renderFiles } from '../make-project/render-default.js';
+import { calculateStat } from '../make-project/_util.js';
 import { astroBin } from './_util.js';
 
 const port = 4322;
 
 export const defaultProject = 'render-default';
 
-/** @typedef {{ avg: number, stdev: number, max: number }} Stat */
-
 /**
  * @param {URL} projectDir
  * @param {URL} outputFile
@@ -68,22 +67,17 @@ async function benchmarkRenderTime() {
 			result[pathname].push(renderTime);
 		}
 	}
-	/** @type {Record<string, Stat>} */
+	/** @type {Record<string, import('./_util.js').Stat>} */
 	const processedResult = {};
 	for (const [pathname, times] of Object.entries(result)) {
 		// From the 100 results, calculate average, standard deviation, and max value
-		const avg = times.reduce((a, b) => a + b, 0) / times.length;
-		const stdev = Math.sqrt(
-			times.map((x) => Math.pow(x - avg, 2)).reduce((a, b) => a + b, 0) / times.length
-		);
-		const max = Math.max(...times);
-		processedResult[pathname] = { avg, stdev, max };
+		processedResult[pathname] = calculateStat(times);
 	}
 	return processedResult;
 }
 
 /**
- * @param {Record<string, Stat>} result
+ * @param {Record<string, import('./_util.js').Stat>} result
  */
 function printResult(result) {
 	return markdownTable(