Hello,

I managed to install ocaml 4.12.0 with multicore. I could not parallelise my
code in 5mn ;-) but I check just the sequential speed and got a bit
surprised. On the same examples, same options (flambda everywhere), etc ...

                      Ex 1	Ex 2  	      Ex 3
4.13.1 normal	      45s	12s	      49s
4.12.0 normal	      36s	11s	      45s
4.12.0 multicore      31s	10s	      40s

These are not small differences and it is rather surprising that

4.13.1 is significantly slower than 4.12.0 (20 to 25%)

4.12.0 + multicore is faster on sequential code.

Other people observe the same ?
Any idea ? Should I report an issue for the speed degradation of 4.13.1 ?

Christophe