That answered my question :)
Thanks.
Staffan
On Sun, Oct 21, 2012 at 1:44 PM, Rick McGuire <object.r...@gmail.com> wrote:
>
>
> On Sun, Oct 21, 2012 at 7:39 AM, Staffan Tylen <staffan.ty...@gmail.com>wrote:
>
>>
>>> One thing you've overlooked in your conclusions is the effect of keeping
>>> large numbers of "live" objects in memory has on the garbage collector.
>>> The processing of an individual item might be faster, but as the size of
>>> the active memory heap grows, each garbage collection cycle takes longer
>>> because there are more live objects that need to be traced. Add in the
>>> paging effects from having a larger working set, and I'm not particularly
>>> surprised that step benchmarks as faster. If you don't really need to have
>>> all of the data in memory at one time, you are better off not retrieving
>>> everything at one time.
>>>
>>>
>> Rick, thanks. This leads to the question - does explicit 'drop'
>> statements reduce the work for the garbage collection? I would believe so...
>
>
> It depends on what you are dropping. If the variable holds the only
> reference to an object, then yes it does. If there are other references
> keeping the object alive, then it is just extra overhead. And, in general,
> if the variable in question is just a local variable that will be going out
> of scope any way, then drop is just a waste of time. You really have to
> have a good understanding of how the garbage collector works to get any
> advantage from using drop. Let me put it this way...I have a better
> understanding of how the ooRexx garbage collector works than anybody else
> on the planet, and I NEVER use drop in my programs.
>
> Rick
>
>
>>
>>
>> Staffan
>>
>>
>>
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>>
>
>
> ------------------------------------------------------------------------------
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