GC pathological case behaviour

[Ola Fosheim Grøstad via Digitalmars-d]

On Tuesday, 28 June 2016 at 20:24:33 UTC, Steven Schveighoffer 
wrote:
> On 6/28/16 4:12 PM, luminousone wrote:
>>
>> Is puts high enough latency that, that main thread can fill 
>> the message
>> queue faster then start can exhaust it? If you put a call to 
>> sleep for
>> 1ms in the main loop does it have the same result?
>
> I think this is it. Your main loop is doing very little, 
> basically just allocating memory. The child thread is putting 
> data to the console, which is much more expensive.

Is the message queue unlimited by default? Use this then:

https://dlang.org/phobos/std_concurrency.html#.setMaxMailboxSize

?