[m-users.] users Digest, Vol 107, Issue 14

[Julien Fischer]

Hi Volker,

On Mon, 16 Oct 2023, Volker Wysk wrote:

> Am Montag, dem 16.10.2023 um 15:39 +0200 schrieb Michel Vanden Bossche:
>> > On Sat, 14 Oct 2023, Matthew Delaney wrote:
>> > 
>> > > Hi, I'm new to Mercury but am interested in using it to replace Prolog
>> > > in a project I'm just starting. This project will need a web-interface
>> > > and backend DB connectivity. Reading through Mercury's documentation,
>> > > it looks like the most straightforward approach would be to use CGI
>> > > for the Web App part and the Foreign Language Interface for DB
>> > > connectivity. Is that correct or are there other options available?
>> > 
>> > If you're using one of the Java or .NET web frameworks, you can compile
>> > your Mercury to a Java or C# library respectively and call it from the
>> > framework.
>> > 
>> > Julien.
>> 
>> Our experience with the Java backend is that it offers great performance.
>> A Mercury application complied to Java is viewed from the outside as a
>> standard Java application (Spring Boot…) and can be easily deployed in the
>> cloud, using Kubernetes for scalability. Just in case…
>
> I've programmed in Java many years ago. And I think that the asm_fast grade
> must be WAY faster than Java.

Not at all. One of the applications I built at work in Mercury is a
dispatch recommendation system -- essentially a tool to recommend which
couriers to assign jobs to. The difference in performance between the
version compiled to C and the version compiled to Java, after the JIT
compiler has had a decent go the Java version, is below what you can
meaningfuly measure.

Julien.