This is to good to be true

[stan]

I have about a dozen FreeBSD boxes serving a dedicated function. Among
other things these machines run a local copy of Firefox, which is updated
rapidly by a CGI script.

These machines were at  6.2 STABLE, and Firefox 1.x. I am upgrading them to
7.2 STABLE, and Firefox 3. Historically memory leaks in Firefox cause us to
have to write a "watchdog" script that killed it an restarted it about once
a day, based upon it's active memory set. One of the new machines has been
up for several days without having to do this. This is not totally
unexpected,as I thought that this had bee improved, if not fixed in newer
versions of Firefox.

However, I have been keeping a close look on memory utilization using
cricket (which acquires it's data using SNMP) and I am blown away by what I
am seeing historically ucd_sys free ram has hovered around zero on these
systems, Now it grows over time! These machines do have a stable set of
applications, and I can rationally see how  a well designed kernel might be
aggressively freeing RAM given this. If so huge congratulations are due the
developers.

Dose this seem to be a reasonable belief?


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