--- wikisrc/laptops.mdwn	2020/09/07 07:58:16	1.25
+++ wikisrc/laptops.mdwn	2020/09/07 13:34:13	1.26
@@ -201,7 +201,7 @@ From user reports to port-arm@, in NetBS
 * The CPU frequency can be adjusted with `sysctl machdep.cpufreq.*`.
 * Mesa llvmpipe is currently used for 3D/OpenGL.
 
-## Pinebook Pro
+## Pinebook Pro (Rockchip RK3399)
 
 * [[!template id=man name="uvideo" section="4"]] webcam works.
 * Internal Broadcom WiFi is supported via the [[!template id=man name="bwfm" section="4"]] driver in -current.
@@ -210,3 +210,10 @@ From user reports to port-arm@, in NetBS
 * The display backlight can be adjusted with `sysctl`.
 * Mesa llvmpipe is currently used for 3D/OpenGL.
 * Connecting external monitors does not currently work through USB-C.
+
+### Pinebook Pro CPU affinity
+
+After setting `security.models.extensions.user_set_cpu_affinity=1` in `/etc/sysctl.conf`,
+you can run an intensive command on only the "big" CPUs:
+
+`$ schedctl -A 4,5 make package`