Comparing dmd, ldc, rust based on the same algorithm implementation:
https://github.com/exhu/alimg/tree/master/dmd
https://github.com/exhu/alimg/tree/master/bufdither-rust
rust version is the fastest (2.5 s) vs dmd's 5 secs, ldc's 2.9 s.
rust version also consumes less memory:
Maximum resident set size (kbytes): 3716
Elapsed (wall clock) time (h:mm:ss or m:ss): 0:02.50
DMD:
Maximum resident set size (kbytes): 5380
Elapsed (wall clock) time (h:mm:ss or m:ss): 0:05.28
LDC:
Elapsed (wall clock) time (h:mm:ss or m:ss): 0:02.91
Maximum resident set size (kbytes): 8044
The D programming language version turned out to be easy and quick to implement as it was very close to Java/C++.
The Rust version took very long time to implement, as it required considerably more time to learn Rust's basics.
