"pause" garbage collection in parallel code

[bearophile via Digitalmars-d]

Stephan Schiffels:

> 2.) Is there a way to "pause" the GC collection for the 
> parallel part of my program, deliberately accepting higher 
> memory usage?

There are GC.disable and GC.enable.


> 3.) Most of the memory is used in one huge array, perhaps I 
> should simply use malloc and free for that particular array to 
> avoid the GC from running so often.

This is sometimes acceptable. For some usages there is also Array 
in Phobos.


> I am a bit surprised that there is no command line option for 
> dmd to control GC maximum heap size.

Adding such option could be a good idea.


> Who determines how often the GC is run?

The D GC is run when you allocate memory. If you don't allocate, 
it's run only at program start to initialize it.

Bye,
bearophile