314 or Pro 4 Max memory?

Hi, this is the mem_log from the readyNAS 314, can we benefit from upgrading to more memory in this case. I am just abit confuse in terms of the info outlined in the log and need some help interpreting.

MemTotal:        2038140 kB
MemFree:           30500 kB
Buffers:            2576 kB
Cached:          1433048 kB
SwapCached:           40 kB
Active:          1067360 kB
Inactive:         718820 kB
Active(anon):     249720 kB
Inactive(anon):   116824 kB
Active(file):     817640 kB
Inactive(file):   601996 kB
Unevictable:          64 kB
Mlocked:              64 kB
SwapTotal:       1047932 kB
SwapFree:        1047892 kB
Dirty:               908 kB
Writeback:             0 kB
AnonPages:        350612 kB
Mapped:            23280 kB
Shmem:             15872 kB
Slab:              62008 kB
SReclaimable:      35260 kB
SUnreclaim:        26748 kB
KernelStack:        1816 kB
PageTables:        10380 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:     2067000 kB
Committed_AS:     877948 kB
VmallocTotal:   34359738367 kB
VmallocUsed:        2912 kB
VmallocChunk:   34359726028 kB
DirectMap4k:        3008 kB
DirectMap2M:     2084864 kB