documentation incomplete: Phase.wait_wss_freeze

[Gerrit Hohl]

In the paragraph about the Phase class you name a property "wait_wss_freeze", but don't explain it.
http://www.web-polygraph.org/docs/reference/pgl/types.html#type:docs/reference/pgl/types/Phase

It is used e.g. in workloads/includes/polymix-4-guts.pg in line 101:

Phase phFill = {
     name = "fill";
     goal.fill_size = 2*ProxyCacheSize / clientHostCount;
     wait_wss_freeze = yes; // will finish only if WSS is frozen
};

After some search I guess "wss" means "working set size".
I also found a little bit information in the section "7. Frozen working set size" of "Recycling tests > Continuing tests":
http://www.web-polygraph.org/docs/userman/persist_ws.html#Sect:7

I assume it is an additional property to the "goal" property or maybe some kind of synchronisation statement. The phase will finish if the fill size of the proxy should have reached a certain level and if the working set of all objects isn't growing anymore.