@szzsqing1

It's interesting to see the result of Test Case 1 in which the swap device is still created even though the noswap parameter has been given. If the script, /etc/init.d/knoppix-autoconfig, is the only knoppix-specific script controlling the swap-related stuff, I reckon that the swap file/device is set up on the ram using zram module unless the knoppix.swp exists in either the folder of /mnt-system/KNOPPIX or /mnt-system. So in my option there is no need to worry too much about wearing out the NAND chips.

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/home total: 2,9 GiB
/tmp total: 2,0 GiB

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Just out of curiosity, how are these figures(output) obtained?