Re:D Programming Language
by lelanthran on Thursday February 12, 2026 @05:22AM
(#46986999)
> (People who want that sort of stupidity already have Go and Java, they don't need D.)
Go wasn't around when D was created, and Java was an unbelievable memory hog, with execution speeds that could only be described as "glacial".
As an example, using my 2001 desktop, the `ls` program at the time was a few kb, needed about the same in runtime RAM and started up and completed execution in under 100ms.
The almost equivalent Java program I wrote in 2001 to list files (with `ls` options) took over 5s just to start up and chewed through about 16MB of RAM (around 1/4 of my system's RAM).
Java was a non-starter at the time D came out - the difference in execution speed between C++ systems programs and Java systems programs felt, to me (i.e. my perception), larger than the current difference in performance between C++/C/Rust programs and Bash shell scripts.
Go wasn't around when D was created, and Java was an unbelievable memory hog, with execution speeds that could only be described as "glacial".
As an example, using my 2001 desktop, the `ls` program at the time was a few kb, needed about the same in runtime RAM and started up and completed execution in under 100ms.
The almost equivalent Java program I wrote in 2001 to list files (with `ls` options) took over 5s just to start up and chewed through about 16MB of RAM (around 1/4 of my system's RAM).
Java was a non-starter at the time D came out - the difference in execution speed between C++ systems programs and Java systems programs felt, to me (i.e. my perception), larger than the current difference in performance between C++/C/Rust programs and Bash shell scripts.