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MFS RAM footprint

Question asked by joey81 on Sep 20, 2013
Latest reply on Sep 20, 2013 by joey81

I have MQX 4.0.2 running on a K60 with 128KB RAM.   Memory device is a 256MB Samsung NAND Flash.


Upon boot-up, after calling _io_nandflash_wl_install(), I still have 89344 bytes free.  After calling mfs_nandflash_wl_open(), free RAM drops to 36636 bytes.

Is this the normal RAM footprint of MFS/FFS?  Seems too big.  How do I make it smaller?

Also, each time I list the directory contents (via shell "dir" command), I lose around 20-30 bytes of free RAM.  Anyone got an idea where the leak comes from? 

Thanks in advance!