esp-idf/examples/system/himem
..
main
CMakeLists.txt
Makefile
README.md
sdkconfig.defaults

README.md

Example: himem

This test tests the upper memory of an ESP32 system with 8MiB of PSRAM attached. Note that this (obviously) will not work unless the ESP32 you're running this on actually does have 8MiB pf PSRAM.