@cusma, I did not know a 8GB Raspberry Pi exists… that makes me curious : does the arm6v code ( which we compiled for all the Raspberry Pi ) supports more than 4Gb ? I thought that it’s limited to 4GB.
Regarding the memory consumption issue, I can confirm that it does seems to be correlated with the large account number on mainnet. The recent betanet release (2.1.4) did not provided a fix for this issue, unfortunately (BetaNet Update: Version 2.1.4 )