low-latency GC

[Bruce Carneal]

On Sunday, 6 December 2020 at 05:29:37 UTC, Ola Fosheim Grostad 
wrote:
> On Sunday, 6 December 2020 at 05:16:26 UTC, Bruce Carneal wrote:
>> How difficult would it be to add a, selectable, low-latency GC 
>> to dlang?
>>
>> Is it closer to "we cant get there from here" or "no big deal 
>> if you already have the low-latency GC in hand"?
>>
>> I've heard Walter mention performance issues (write barriers 
>> IIRC).  I'm also interested in the GC-flavor performance trade 
>> offs but here I'm just asking about feasibility.
>
> The only reasonable option for D is single threaded GC or ARC.

OK.  Some rationale?  Do you, for example, believe that 
no-probable-dlanger could benefit from a low-latency GC?  That it 
is too hard to implement?  That the language is somehow 
incompatible? That ...