I understand but I use both of the cores. I pin my application tasks to APP_CPU with xTaskCreatePinnedToCore. Other things like wifi, ble runs on PRO_CPU. I only changed the "run FreeRTOS only on first core" option.

Before enabling the "run FreeRTOS only on first core" option:

I (815) psram ...

Hi,
I have two questions that are related to each other:

1)
After enabling the "run FreeRTOS only on first core" option, I observed the following memory increases:
~51 KB for MALLOC_CAP_EXEC
~17.5 KB for free_heap_size, MALLOC_CAP_DMA, MALLOC_CAP_8BIT, and MALLOC_CAP_DEFAULT

I understand that ...

Hi,
I get the same result but my application works correctly. I assume we can't print the free memory size in IRAM (something like MALLOC_CAP_IRAM_32BIT) from the application.
Also, I observe zero bytes by calling heap_caps_get_free_size() with MALLOC_CAP_INVALID, MALLOC_CAP_RTCRAM, MALLOC_CAP ...