NW65sp4a, 4 servers in cluster, each have 4GB ram, servers recently
installed, still trying to get all the settings, tweaks right.

Trying to troubleshoot issues with diminishing total cache buffers. I read
a lot of what's been said here and elsewhere and pulled segstats. One thing
we noticed was that NWMKDE was using 728.8MB of memory. Normal?

Any suggestions on this or the diminishing total cache buffers?