It is not ideal to have high memory usage. The usage will depend on the configured features, traffic type and amount. Keep us posted on the results of the update.
I have a doubt regarding the ram usage on N2048 and N4032. The N2048 has a 1GB Ram memory but the usage seems to be pretty high  ( nearly to 1GB). Under standard conditions what is the average usage of this model?   This is the current code : Dell Networking N2048, 6.2.0.5, Linux 3.6.5-1289​203e  We want to discard a memory leak on switches running this code.  Thank you.  Luis.
Ram memory normal usage on N2048 and N4032