[racket] Is racket suitable for such a project?

From: Hendrik Boom (hendrik at topoi.pooq.com)
Date: Tue Feb 18 22:02:18 EST 2014

On Tue, Feb 18, 2014 at 05:44:36PM +0100, Tomasz Rola wrote:
> On Mon, 10 Feb 2014, Yuhao Dong wrote:
> > Hi,
> > 
> > I'm trying to decide between Racket and Go on writing my onion-routing
> > system inspired by Tor. Basically, a network server, involving lots of
> > long-lived connections that often pass large amounts of data. The thing
> > needs to be super scalable; I often find that these servers, although
> > network servers, often become CPU-bound doing encryption and
> > encapsulation of protocols, so I do have experience that this is not
> > "premature optimization"!
> > 
> [... many faults of Go-choice ...]
> [... many faults of Racket-choice ...]
> > Are there solutions to these problems? These aren't showstoppers by any
> > means, but could finally end my endless dilemma between the two langs :)
> For the reasons you wrote above, I wouldn't choose any of them.
> If you know C and or C++ very well, you could do this project in them. 
> However, since this is networked code, there is a lot of stuff to 
> remember, or you may later find many embarrasing security holes in your 
> code. Besides, using certain C++ constructs (incorrectly or maybe even 
> correctly sometimes) may lower your performance a lot.
> Of other languages mentioned by others, Erlang is perhaps a good choice 
> but I don't know it at all, so I cannot comment. Ada doesn't look bad but 
> I understand you may have either to go opensource or pay for 
> Windows-capable compiler. In exchange you can proudly use "military-grade" 
> language :-).
> Myself, I would also consider OCaml, mostly because I learn it myself and 
> it may be the right middle ground - good compiler, high level, can do 
> prototypes (AFAIK). I'm not sure how good it is wrt security holes in 
> generated code.
> Java is out of the picture for me, because I know it well enough to 
> dislike. Python is out, because while it looks good, I want to replace it 
> with OCaml, so I wouldn't have a reason to write excess code. Haskell is 
> out, because it feels too much like putting strangely shaped shoe on 
> straight foot (and is not easy to optimize).
> All of the above is just MHO, so if you feel otherwise, don't bother about
> me, I am very subjective when it comes to choosing a language.

I'd stick one other language into the mix -- Modula 3.  It's an 
elegant systems language its main flaw it its Pascal-like syntax.
See its Wikipedia page for details and links.  Ask questions on the 
developer's mailing list.

The implementation team is currently getting it to run multicore; it 
already runs single-core with software-managed multithreading.

But it does have a stop-the-world garbage collector.  That's only a 
problem if you use the garbage-collected heap and have tught real-time 
constraints.  There's also a non-collected heap (explicit allocatino 
and freeing) in case garbage collection is too rich.  I think there 
are other non-default garbage collectors, but I'm really not sure.

It has a new code generator that generates C code in case you need 

And, just in case there's confusion, it is *not* *at* *all* the same 
language as Modula or Modula 2.

By the way, the languages I use if I want reliability and early bug 
detection are Modula 3 and OCaml.

I use Scheme occasionally when I want to play with coding notation 
a lot.

-- hendrik

> Regards,
> Tomasz Rola
> --
> ** A C programmer asked whether computer had Buddha's nature.      **
> ** As the answer, master did "rm -rif" on the programmer's home    **
> ** directory. And then the C programmer became enlightened...      **
> **                                                                 **
> ** Tomasz Rola          mailto:tomasz_rola at bigfoot.com             **
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