[cmucl-imp] Working set

[Helmut Eller]

* Raymond Toy [2010-11-06 11:58] writes:

> On 11/5/10 3:41 PM, Helmut Eller wrote:
>> Is there an easy way to determine the working set size (resident size)
>> that is needed to evaluate some form?  
>>
>> TIME prints various things but not what I need.  The Linux top command
>> shows a column with the resident size; essentially I'd like to see
>> the maximum of the those values sampled while executing the form.
>>
>> Does the GC have this information already?  Would it be
>> difficult/expensive to use getrusage in GC hooks to collect the
>> information?
> I don't see why you can't use getrusage in a GC hook to get his
> information.  After all, you made slime use a GC hook to show how much
> memory is used in each generation when a GC happens.  Would summing up
> the memory usage in each generation be close enough to the resident size
> that you want?

Would that include the space needed to run the GC?  Doesn't the GC need
about twice us much while moving from-space to to-space?

Helmut