From fa8926754707569feb6549df68eba0d49b304743 Mon Sep 17 00:00:00 2001
From: David Peter <mail@david-peter.de>
Date: Fri, 2 Oct 2026 11:29:15 +0200
Subject: [PATCH] Describe the default benchmark duration as an estimate

---
 README.md | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 5d67be3..6f19466 100644
--- a/README.md
+++ b/README.md
@@ -33,8 +33,9 @@ hyperfine 'sleep 0.3'
 ```
 
 Hyperfine will automatically determine the number of runs to perform for each command. By default,
-it will perform *at least* 10 benchmarking runs and measure for at least 3 seconds. To change this,
-you can use the `-r`/`--runs` option:
+it will perform *at least* 10 benchmarking runs and estimate a run count targeting roughly
+3 seconds, including shell overhead and preparation and conclusion commands. To set an exact
+number of runs, you can use the `-r`/`--runs` option:
 ```sh
 hyperfine --runs 5 'sleep 0.3'
 ```