Re: Why I Like D

[Araq via Digitalmars-d-announce]

On Thursday, 13 January 2022 at 10:21:12 UTC, Stanislav Blinov 
wrote:
Oh there is a psychological barrier for sure. On both sides of 
the, uh, "argument". I've said this before but I can repeat it 
again: time it. 4 milliseconds. That's how long a single 
GC.collect() takes on my machine. That's a quarter of a frame. 
And that's a dry run. Doesn't matter if you can GC.disable or 
not, eventually you'll have to collect, so you're paying that 
cost (more, actually, since that's not going to be a dry run). 
If you can afford that - you can befriend the GC. If not - GC 
goes out the window.


But the time it takes depends on the number of threads it has to 
stop and the amount of live memory of your heap. If it took 4ms 
regardless of these factors it wouldn't be bad, but that's not 
how D's GC works... And the language design of D isn't all that 
friendly to better GC implementation. That is the real problem 
here, that is why it keeps coming up.