Solaris

This is hopefully no more the case with modern Unixes, and especially Solaris since a couple of decades.

---------- Post updated at 23:39 ---------- Previous update was at 23:36 ----------

The page cache isn't accounted as swap (virtual memory) usage. That wouldn't make sense to cache disk blocks with other disk blocks anyway. It isn't either accounted as RAM usage, unless you use ZFS.

---------- Post updated at 23:43 ---------- Previous update was at 23:39 ----------

Please post these commands output:

Code:

echo ::memstat | mdb -k
prstat -Z

Unless you have a memory leak in an application, uptime doesn't use memory.
Why not simply adding some swap space instead of rebooting ?

---------- Post updated 17-03-11 at 11:43 ---------- Previous update was 16-03-11 at 23:43 ----------

I would on the opposite state that java applications are unlike to eat up memory/swap in the long term as their heap size is bounded at startup by design. C applications have no such limitation so can leak memory until their VM space is exhausted (or sooner).