allocated_cells
— gives the number of allocated and free cells.eval_count
— counts evaluations made since a program started.free_cells
— returns the number of available memory cells.function_calls
— tells how often a function was called during
profiling.function_runtime
— gives the time a function has run during profiling.gc
— runs the garbage collector.gc_blocksize
— for internal use only.gc_enable
— for internal use only.gc_newblock
— for internal use only.gc_trace
— controls the tracing of garbage collection.profile
— collects statistics on function usage and run time.set_autotrace
— is reserved for future use.set_breakpoint
— is reserved for future use.time
— gives command execution times.trace, notrace
— turn tracing on or off.