diff --git a/README.md b/README.md
index 4677445..7acc56b 100644
--- a/README.md
+++ b/README.md
@@ -291,4 +291,26 @@ cat ~/.ssh/id_rsa.pub | ssh <USERNAME>@<IP-ADDRESS> 'mkdir -p ~/.ssh && cat >> ~
 
 ```
 
-https://www.raspberrypi.com/documentation/computers/remote-access.html#passwordless-ssh-access 
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+
+
+https://www.raspberrypi.com/documentation/computers/remote-access.html#passwordless-ssh-access 
+
+### Estadisticas del sistema
+
+```sh
+systemd-analyze
+
+```
+salida
+```
+Startup finished in 10.336s (kernel) + 54.408s (userspace) = 1min 4.745s
+multi-user.target reached after 54.214s in userspace
+```
+
+### Velocidad Escritura
+
+```sh
+sudo apt-get install hdparm
+
+sudo hdparm -t /dev/mmcblk0
+```
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