What are the prominent upsides of the D programming language?
mingwu at gmail.com
Wed Sep 23 04:04:04 UTC 2020
On Monday, 21 September 2020 at 11:04:43 UTC, Imperatorn wrote:
> Top reasons to use D instead of for example Rust, Julia, Go etc
One of the upside of D I like is that one can mix GC with manual
which gives you the best of both world.
Currently I have a personal project, initially I was solely
relying on GC just like in Java: allocate all the objects via
`new`, and let the GC take care of all the bookkeeping. But there
is a particular set of objects which takes the majority of memory
consumption of the program, and even after I carefully removed
all the reference after the object is no longer used, the program
still use lots of memory because GC collection is un-predictable,
both in terms of timing and efficiency.
Then I decided to do manual core.memory.GC.free just for that
particular objects, (it was not very easy in a multi-threaded
program to make all the logic right, but eventually I got it
done). And the resulting program now only use ~10% of the memory
it used to use.
I think this flexibility to mix GC & manual memory management is
very unique in D. Actually I'm not sure if it can be done in
other languages at all.
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