On Friday, May 5, 2017 at 2:10:03 AM UTC+8, Jesper Louis Andersen wrote:
>
> To see why the "immediately" solution is not adequate:
>
> Step 1: Create a single linked list or a binary tree of a couple billion 
> elements. Make sure there is only a single reference to the head element.
> Step 2: Release the pointer to the head
> Step 3: Twiddle your thumbs while your program is blocked since all 
> elements needs to be immediately freed.
>

No, "immediately freed" doesn't mean all unused memory blocks should be 
released by consuming all CPU.
The unused memory blocks can be eventually collected by consuming a very 
small percentage of CPU. 
 

>
> Alternative method:
>
> Moon instructs a student --
>
> One day a student came to Moon and said: “I understand how to make a 
> better garbage collector. We must keep a reference count of the pointers to 
> each cons.” Moon patiently told the student the following story: “One day a 
> student came to Moon and said: ‘I understand how to make a better garbage 
> collector...
>
>
>
> On Thu, May 4, 2017 at 6:33 PM 'Axel Wagner' via golang-nuts <
> golan...@googlegroups.com <javascript:>> wrote:
>
>> As so often is the question: Why?
>>
>> I don't believe this will ever be supported by gc; but if you think it's 
>> a good idea, you can of course do it and see whether it actually solves 
>> your problems (my prediction would be "there won't be a net change in 
>> problems", but am ready to be proven wrong).
>>
>> On Thu, May 4, 2017 at 6:00 PM, T L <tapi...@gmail.com <javascript:>> 
>> wrote:
>>
>>> sometimes, I really want to some memory blocks be collected when they 
>>> become unreferenced immediately..
>>>
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>>
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>

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