7.1.29 Statistics

Resource usage by PCE/Prolog

The Statistics Tool provides an overview of the memory usage by PCE. The values are updated every 5 seconds.

The values have the following meaning:

• Core In Use (pce<-core_usage) The total amount of core PCE has requested itself explicitly via the system's malloc() function. Note that core requested by libraries is not included.
• Core Wasted (pce<-core_wasted) PCE defines it's own memory allocation schema. This value indicates the total amount of memory allocated and later freed, but not (yet) reused.
• Objects in Use (pce<-objects_allocated - pce<-objects_freed) Total amount of living objects (i.e. objects created and not yet freed).

  Tool name: statistics

  Bugs:

  It appears this tools uses for misterious reasons a little bit of memory each time it is updated.

  See also

  - pce<-objects_undecided
  - pce<-objects_freed
  - pce<-objects_allocated
  - pce<-core_wasted
  - pce<-core_usage
  - pce->garbage_collect
  - topic Creating Objects
  - topic Removing Objects
  - topic Garbage collection