Microsoft working on new systems language

[CJS]

On Sunday, 29 December 2013 at 15:26:35 UTC, Andrei Alexandrescu 
wrote:
> On 12/29/13 6:35 AM, "Ola Fosheim Grøstad" 
> <ola.fosheim.grostad+dlang at gmail.com>" wrote:
>> On Sunday, 29 December 2013 at 13:46:07 UTC, Dicebot wrote:
>>> This is not true. Assuming skilled use and same compiler 
>>> backend those
>>> are equally performant. D lacks some low-level control C has 
>>> (which is
>>> important for embedded) but it is not directly related to 
>>> performance.
>>
>> That low-level control also matters for performance, when you 
>> have hard
>> deadlines. E.g. when the GC kicks in, it not only hogs all the 
>> threads
>> that participate in GC, it also trash the caches unless you 
>> have a GC
>> implementation that bypasses the caches. Sustained trashing of 
>> caches is
>> bad.
>
> Yeah how about using deterministic deallocation in the inner 
> loops - that's the only place where it matters.

If this is indeed true then it sounds like a standard technique 
people should be aware of. I really hope it's stuck in Ali 
Cehreli's book (which is awesome) before it's considered 
completed and released. It would be very nice to have something 
to point the GC-hating crowd to as a technique and ask them to 
present examples where the technique isn't enough.