SBCL Common Lisp

“CL is very competitive with popular managed languages like C#, Go, Java, etc”

“SBCL can produce very fast code. It's really slept on from that point of view.”

“in practice SBCL does a great job at doing it or at least emitting warnings when it can't prove the code will fail at runtime”

“when using SBCL some obviously wrong types, or typos, or miscounted arguments, can be caught ahead of time”

“has a pretty sophisticated optimizing compiler that produces pretty fast native code by default”

“The SBCL REPL is a very native place for a coding agent to live.”

“Pick SBCL for speed, learn CL, learn about SIMD and optimizations.”

“Arguably the best is SBCL, which has a mature compiler and garbage collection”

“provisions for gradual typing (with limits) which are exploited by SBCL”

“it's worth learning CL (use SBCL) to fully appreciate everything the Lisp world has to offer without compromises”

“I do however think SBCL has a very nice environment with great tools”

“Luajit and SBCL are very much performance competitive with the JVM?”

“Common Lisp's SBCL (among others, this is not an exclusive list)”

“SBCL REPL cannot do this on xterm, it needs a proper hosting REPL environment like SLIME”

“SBCL is just a marvel of engineering that's impossible to not use”

“even SBCL for Common Lisp too if you finetune the compiling options”

“would you rather write programs with SBCL or some company's internal unnamed domain-specific tree-walking sexpr language”

“I am an avid sbcl and coalton user (and sponsor of both when I can)”

“historically overly optimized for throughput at the expense of everything else”

“The newish SBCL parallel gc is fantastic and uses no additional memory during gc”

“I luckily have the freedom to work with SBCL almost fulltime. It is a joy”

“SBCL's generational GC is faster in all cases, easy to reason about, and trivial to pause.”

“sbcl is one of the things that does not grow tumors in software”

“the SBCL compiler is such that it should never throw an exception even on invalid code”

“SBCL does a fine job in detecting type mismatches within the frame of ANSI Common Lisp”

“SBCL is lovely and very well optimised. Been using it for many personal projects as it just works”

“SBCL has fine type checking. Some is done at compile time -- you get warnings if something clearly can't be type correct”

“The standard for Common Lisp has to be sbcl but the REPL is pretty minimal.”

“Probably the best way of writing assembly, can evaluate the function immediately, use macros and any other code to emit instructions”

“top tier free (as in freedom) interpreter/compiler out there”

“The SBCL implementation has a good compiler that produce reasonably fast code, and it's under active development.”

“the project is far more active and cared for than I had originally suspected”

“the average newcomer can't even use arrow keys or backspace in SBCL”

“The de facto standard implementation (sbcl) has a very good compiler and an acceptable GC.”

“have SBCL warn me if I try to use the resulting Digit-Vector in a function which wants a String”

“I still fondly remember the days where I could launch Emacs with sbcl”

“SBCL is a miracle machine. Even without type annotations it usually performs well enough.”

“I like seeing how fast I can get my solution to run with SBCL”

“If you want the best performance and need to build executables without JVM then SBCL is a better choice”

“SBCL and the commercial implementations can be extremely fast, especially if you specify types on tight loops.”