I benchmarked Chez Scheme vs. Guile. Guile is 3 to 5 times slower
than Chez. I attribute that mostly to C Foreign Function Interface.
The application will parse a text file (n-turtle format) and store
in an embedded database (wiredtiger). Most the CPU time should be
spent during parsing [0], then packing scheme objects into
bytevectors [1] and at last C FFI.
[0]
https://github.com/amirouche/nomunofu/blob/master/nomunofu/index.scm#L13
[1]
https://github.com/amirouche/nomunofu/blob/master/nomunofu/okvs/pack.scm#L208
The chez code is in wip-chez branch.
The Guile FFI code of that particular application can be improved.
Still, I read on IRC that there is some interests to improve C FFI,
that is why I fill this issue to be able to keep track of it.
One step forward, would be to have C FFI benchmarks that are easy
to run with Chez, Guile, and Gambit.
Anyone up for the task?
