Hi,
What are "Protected Objects"?
Protected objects are objects that have no direct references from the stack or the JavaScript heap, but must not be destroyed by the garbage collector. Typically, they are objects that are referenced by non-GC heap-allocated storage, like the DOM. For example, some kinds of event listeners are protected from garbage collection.
Is there a know list of such objects? Is XMLHTTPRequest one of them?
We call protected objects "protected" because, unlike normal GC memory, they must be explicitly reference counted in order to protect them from premature deallocation.
This is the numbers I get -------------------------------------------------------------- Total Objects 96,682 Global Objects 1 Protected Objects 232 Protected Object Counts by Type 1 DOMWindow 230 Function 1 JSDOMWindowShell -------------------------------------------------------------- After a dozen clicks I get the following: (loading json data and creating/removing DOM objects) -------------------------------------------------------------- Total Objects 100,433 Global Objects 1 Protected Objects 358 Protected Object Counts by Type 1 DOMWindow 356 Function 1 JSDOMWindowShell -------------------------------------------------------------- Any ideas what the Function objects could be? François