diff --git a/Simplest-S3-Bucket-and-User-Setup.md b/Simplest-S3-Bucket-and-User-Setup.md
index ccd3660..9224634 100644
--- a/Simplest-S3-Bucket-and-User-Setup.md
+++ b/Simplest-S3-Bucket-and-User-Setup.md
@@ -99,6 +99,17 @@ of creating a duplicate.
 > s3.user.provision -name alice -bucket another-bucket -role readwrite
 ```
 
+## Speed check
+
+Quick sanity test on an Apple Silicon laptop, `weed mini -dir=/tmp/weed-repro
+-ip=127.0.0.1`, 1 GiB object over loopback:
+
+| Operation                              | Time   | Throughput   |
+|----------------------------------------|--------|--------------|
+| `aws s3 cp` upload (1 GiB)             | ~2.0 s | ~500 MB/s    |
+| `aws s3 cp` download (multipart-range) | ~1.7 s | ~600 MB/s    |
+| Single-stream `curl` on a presigned URL| ~0.8 s | ~1343 MB/s   |
+
 ## Related
 
 - [[Quick Start with weed mini]]